Home |
Search |
Today's Posts |
|
Woodworking (rec.woodworking) Discussion forum covering all aspects of working with wood. All levels of expertise are encouraged to particiapte. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
|
|||
|
|||
Sorbey Mortise Chisel Review
I bought a one inch Sorbey Mortise Chisel. It came with two chipped
corners because they do not protect the cutting edge. The back was not even close to flat and had a convex belly that took a long time to flatten. The width is 1-1/64" which seems like it is off a lot since this is a tool of relatively small size, made of metal and ground when manufactured. I will try another brand next time. -Peter |
#2
|
|||
|
|||
I have had similar problems with the Sorby chisels. My solution is a
simple one but has allowed me to find some great chisels, with Sorby on the handle. While I'm at the store looking at the chisels I grab a high quality square, and check the flatness, the grind and the edges. Usually in any given size they have one that I can't find a problem with, otherwise I find a different size. I have never thought to check the actual dimensions of the chisels, as it doesn't matter to me very often, I make the chisel choice based on what "looks right" not what the ruler says. Sure maybe next time I will spend more money on a chisel, but for now I think this system is working alright for me. Andrew |
#3
|
|||
|
|||
1 1/64" is probably some metric size . Personally selling metric sized tools
under the guise of normal American sizes really ****es me off ,similarly Books sold here with all the dimensions in metric also does . Seems to me if they are selling in the US market then they should cater to the US consumer....mjh wrote in message oups.com... I bought a one inch Sorbey Mortise Chisel. It came with two chipped corners because they do not protect the cutting edge. The back was not even close to flat and had a convex belly that took a long time to flatten. The width is 1-1/64" which seems like it is off a lot since this is a tool of relatively small size, made of metal and ground when manufactured. I will try another brand next time. -Peter |
#4
|
|||
|
|||
On the other hand the metric system makes sense, and is really easy to
figure out. Why bother making two sizes of every tool when 90% of the people that will be using them won't notice or care about 1/64th off? |
#5
|
|||
|
|||
Tattooed and Dusty wrote: On the other hand the metric system makes sense, and is really easy to figure out. Why bother making two sizes of every tool when 90% of the people that will be using them won't notice or care about 1/64th off? Thank Jimma Carter for that. What a gutless jerk he was. |
#6
|
|||
|
|||
I bought a one inch Sorbey Mortise Chisel. It came with two chipped corners because they do not protect the cutting edge. The back was not even close to flat and had a convex belly that took a long time to flatten. The width is 1-1/64" which seems like it is off a lot since this is a tool of relatively small size, made of metal and ground when manufactured. I will try another brand next time. -Peter Get a refund. I think R. Sorby is a major marketing company. Not supremely out to make a quality product so much as to make as much money as possible. I did recently read a user's webpage that he was impressed with how long the Sorby mortiser held an edge, never thought I'd read that. When I get my 1st mortise set they will be Henry Taylor or Japanese ones. Maybe the older "pig stickers". I would like to hear someone's sinopsys of the Henry Taylor steel from experience, if anyone has it to say... ? I bought a new Marples chisel with the boxwood handle on eBay, they have thicker blades so I thought to try it out on the drilled mortises of my bench legs. They are Douglas Fir which is not an impressive wood, not impressed with the steel, as it easily picks up curling to chipping pretty quickly. This did not happen using Stubai bench chisels, unless it was extremely minor, even with hitting them harder. And the blades are thinner than the Marples. But I do not know how these aspects apply with mortise chisels, the structure dynamics could be quite different. Anyone experienced with Henry Taylor mortise chisels? Does the edge last long without curl_to_chip? -- Alex - newbie_neander in woodworking cravdraa_at-yahoo_dot-com not my site: http://www.e-sword.net/ |
#7
|
|||
|
|||
"mike hide" wrote in message ... 1 1/64" is probably some metric size . Personally selling metric sized tools under the guise of normal American sizes really ****es me off ,similarly Books sold here with all the dimensions in metric also does . Seems to me if they are selling in the US market then they should cater to the US consumer....mjh Yes, it seems the metric system of measuring has never caught on in America, except of course for the 9mm. Oldun |
#8
|
|||
|
|||
On 21 Apr 2005 20:01:26 -0700, Tattooed and Dusty wrote:
On the other hand the metric system makes sense, and is really easy to figure out. Why bother making two sizes of every tool when 90% of the people that will be using them won't notice or care about 1/64th off? That's fine, so then advertise it as a 26mm, not a 1". |
#9
|
|||
|
|||
On Fri, 22 Apr 2005 11:32:50 +0100, Oldun wrote:
"mike hide" wrote in message ... 1 1/64" is probably some metric size . Personally selling metric sized tools under the guise of normal American sizes really ****es me off ,similarly Books sold here with all the dimensions in metric also does . Seems to me if they are selling in the US market then they should cater to the US consumer....mjh Yes, it seems the metric system of measuring has never caught on in America, except of course for the 9mm. In the engineering and science world more than at the consumer side. As sourcing of foreign subassemblies continues to get worse, we'll be seeing some manufacturers switch entirely just to keep from having mixed metric and SAE on the same piece of equipment. It's not a good reason to switch, but switching will make things easier in the long run. |
#10
|
|||
|
|||
Dave Hinz wrote:
.... ... manufacturers switch entirely just to keep from having mixed metric and SAE on the same piece of equipment. It's not a good reason to switch, ... Actually, it is one very good reason to switch...mixed is far worse than not, whichever system it is. If a manufacturer wishes to export to almost anywhere outside the US, metric will almost certainly be required (or, in most cases, already is). |
#11
|
|||
|
|||
Tattooed and Dusty wrote: On the other hand the metric system makes sense, and is really easy to figure out. Why bother making two sizes of every tool when 90% of the people that will be using them won't notice or care about 1/64th off? 1 1/64" = 25.8 mm. I doubt that's a standard size in Europe. If his measuement was off by 1/128" then it might actually be 26mm which also seems to be a rather odd choice for a standard size. If that's what they want to do, fine. That does not justify misrepresenting the dimensions of their product. If someone sells a 6mm plywood, they should call it 6mm plywood (which a lot of vendors of Marine and aircraft plywood do.) -- FF |
#12
|
|||
|
|||
|
#13
|
|||
|
|||
On Fri, 22 Apr 2005 10:37:39 -0500, Duane Bozarth wrote:
Dave Hinz wrote: ... ... manufacturers switch entirely just to keep from having mixed metric and SAE on the same piece of equipment. It's not a good reason to switch, ... Actually, it is one very good reason to switch...mixed is far worse than not, whichever system it is. I agree "not mixed" is a good reason to switch. "because products are being made in low cost countries" as a driver for that, is the part I consider not to be the good reason. If a manufacturer wishes to export to almost anywhere outside the US, metric will almost certainly be required (or, in most cases, already is). That wasn't true 5 years ago for medical diagnostic machinery, based on personal experience working for a very large company whose name rhymes with, er, let's say "G.E.". Dave "A good place to be from..." Hinz |
#14
|
|||
|
|||
|
#15
|
|||
|
|||
lgb wrote:
.... A chisel cannot be both 19mm and 3/4"! To a marketer, what's the problem????? |
#16
|
|||
|
|||
|
#17
|
|||
|
|||
Duane Bozarth wrote:
lgb wrote: ... A chisel cannot be both 19mm and 3/4"! To a marketer, what's the problem????? To what tolerances are chisels made? It's possible to make one that is within .001" of being both. If your specification tolerance is, say, .005, then making two different sizes you'd end up with some 19mms that were wider than some 3/4, and some 3/4 that were wider than some 19mm. All you'd have to do is make your target midway between is cut your working tolerance to .004 and your one-size would be within spec for of both sizes, so why not just make the one and give it both measurements? That particular size is a bad example because the English and Metric sizes are really close. 3mm and 3/8 inch is a much better example--a chisel made midway between the two sizes would be .0094" or a little over a 128th off. -- --John to email, dial "usenet" and validate (was jclarke at eye bee em dot net) |
#18
|
|||
|
|||
Over 1/4" difference.
"J. Clarke" wrote in message ... 3mm and 3/8 inch is a much better example--a chisel made midway between the two sizes would be .0094" or a little over a 128th off. -- --John to email, dial "usenet" and validate (was jclarke at eye bee em dot net) |
#19
|
|||
|
|||
CW wrote:
Over 1/4" difference. That's 10mm, have no idea why I typed 3. Well, actually I do, having calculated all this crap I read the wrong column of the spreadsheet. Assuming that the chisel is made with a width midway between the English and Metric sizes we end up with English Metric Difference Inch mm Inch 1/8 3 .0034 1/4 6 .0069 3/8 10 .0094 1/2 13 .0059 3/4 19 .0010 1 25 .0079 1-1/4 32 .0049 1-1/2 38 .0020 2 50 .0157 "J. Clarke" wrote in message ... 3mm and 3/8 inch is a much better example--a chisel made midway between the two sizes would be .0094" or a little over a 128th off. -- --John to email, dial "usenet" and validate (was jclarke at eye bee em dot net) -- --John to email, dial "usenet" and validate (was jclarke at eye bee em dot net) |
#20
|
|||
|
|||
I don't have other chisels to compare to but I've been using my Sorbey
mortise chisel on hard maple. I've been squaring up drilled mortise holes for my work bench base. When chopping vertically down the end grain at the end of the mortise I can only go about 1" before there is quite a bit of edge failure. This is at the bevel angle that the chisel came to me. I've just been honing the whole bevel. Probably 30 degrees? Maple is hard but I'm thinking a mortise chisel should do a little better than that before edge failure. True? |
#22
|
|||
|
|||
"J. Clarke" wrote:
Duane Bozarth wrote: lgb wrote: ... A chisel cannot be both 19mm and 3/4"! To a marketer, what's the problem????? To what tolerances are chisels made? ... I was being sarcastic (and somewhat cynical)... In reality I suspect an specific manufacturer builds to a given spec and simply marks the other units as nearest rather than specifically trying to meet an arbitrary tolerance to allow a legal "out" for accuracy of both English and metric sizes...it would probably not be cost-effective to try to maintain both inventories. |
#23
|
|||
|
|||
On Fri, 22 Apr 2005 16:40:38 -0700, lgb wrote:
In article , says... On 21 Apr 2005 20:01:26 -0700, Tattooed and Dusty wrote: On the other hand the metric system makes sense, and is really easy to figure out. Why bother making two sizes of every tool when 90% of the people that will be using them won't notice or care about 1/64th off? That's fine, so then advertise it as a 26mm, not a 1". What bothers me is when the chisels are labelled with both. as mine are. A chisel cannot be both 19mm and 3/4"! google the string: 3/4 inch in mm tells you it's 19.05mm - That's pretty darn close, for something where the width isn't the primary feature. Under two thousandths of an inch? Close enough, for a chisel. Hell, close enough for a socket. |
#24
|
|||
|
|||
|
#25
|
|||
|
|||
lgb wrote:
In article , says... Metric sizes we end up with English Metric Difference Inch mm Inch 1 25 .0079 One of us needs to do some remedial math classes. Two references give 1" as 25.4mm. 1/25.4 = 0.0393. Therefore .4mm = .0393 * .4 = 0.0157" There's a considerable difference between .0079 and .0157 :-). In fact, it is different by a factor of 2. (That was a hint!) The approach being discussed was to make one half-way between, and sell it as a .0079" oversized 25mm chisel or a .0079" undersized 1" chisel. I once tried threading a 1" dowel (and it measured 1") with a threading tool that claimed to be 1" but was 25mm. I had to turn down the dowel on a lathe :-). -- Alex -- Replace "nospam" with "mail" to reply by email. Checked infrequently. |
#26
|
|||
|
|||
Thanks Larry. My Sorby mortise chisel (I'm stopping now!) will have a
new grind angle in about an hour. Peter |
#27
|
|||
|
|||
On 25 Apr 2005 10:04:23 -0700, the inscrutable
spake: Thanks Larry. My Sorby mortise chisel (I'm stopping now!) will have a new grind angle in about an hour. Great! P.S: What did you find when you tested the temper? ------------------------------------------------------------------- Do. Or do not. * Stylin' Web Design Services There is no try. --Yoda * http://www.diversify.com ------------------------------------------------------------------- |
#28
|
|||
|
|||
lgb wrote:
In article , lid says... Metric sizes we end up with English Metric Difference Inch mm Inch 1 25 .0079 One of us needs to do some remedial math classes. Two references give 1" as 25.4mm. 1/25.4 = 0.0393. Therefore .4mm = .0393 * .4 = 0.0157" By international standard 1" = 25.4 mm, _exactly_. Now, that being the case, we can make our chisel nominally 1" or we can make it nominally 25mm. But how about if instead of doing either, we target 25._2_ mm, which is halfway between. Then we're only .2mm off on either size, and .2mm = .2/25.4 = .0079. There's a considerable difference between .0079 and .0157 :-). I once tried threading a 1" dowel (and it measured 1") with a threading tool that claimed to be 1" but was 25mm. I had to turn down the dowel on a lathe :-). -- --John to email, dial "usenet" and validate (was jclarke at eye bee em dot net) |
#29
|
|||
|
|||
|
#30
|
|||
|
|||
Tested the temper?
I reground the chisel on my 6" grinder with very light passes and some soaking in water along the way. It was slow but the blade only got a little bit warm to touch. I changed the angle to between 35 and 40 degrees and now it works much better. I can chop straight down 4 inches of maple end grain many times and the blade edge does not crumple like it did before. Now I realize that when I flattened the back I probably was resposible for making the back and front of the chisel out of parallel. When the bevel is at right angles it is wider at one side. I measured the thickness of the blade and it is about 0.01" thicker on one side. Maybe the chisel came out of parallel but I think that is unlikely. Is there a company out there that is set up to efficiently grind chisels, plane blades? I'm sure any machine shop with a grinder could do it but probably they would require quite a bit of set up time. Peter |
#31
|
|||
|
|||
On 25 Apr 2005 17:07:42 -0700, the inscrutable
spake: Tested the temper? I reground the chisel on my 6" grinder with very light passes and some soaking in water along the way. It was slow but the blade only got a little bit warm to touch. I changed the angle to between 35 and 40 degrees and now it works much better. I can chop straight down 4 inches of maple end grain many times and the blade edge does not crumple like it did before. Great! Now I realize that when I flattened the back I probably was resposible for making the back and front of the chisel out of parallel. When the bevel is at right angles it is wider at one side. I measured the thickness of the blade and it is about 0.01" thicker on one side. Maybe the chisel came out of parallel but I think that is unlikely. Oops! But front-to-back doesn't matter. It's that the cutting side is perpendicular to the 2 sides and the sides are parallel to each other. Is there a company out there that is set up to efficiently grind chisels, plane blades? I'm sure any machine shop with a grinder could do it but probably they would require quite a bit of set up time. Check with your local sawblade sharpener. The sharpening guys usually have a shop full of various tools do to most anything. One who does plane blades might be the one to talk to. ------------------------------------------------------------------- Do. Or do not. * Stylin' Web Design Services There is no try. --Yoda * http://www.diversify.com ------------------------------------------------------------------- |
#32
|
|||
|
|||
Thanks Larry,
BTW, Funny T-shirts. Peter |
#33
|
|||
|
|||
On 25 Apr 2005 19:37:29 -0700, the inscrutable
spake: Thanks Larry, BTW, Funny T-shirts. Thanks. Now buy some, or buy a NoteSHADE(tm) glare guard, eh? I'll have the Possum(tm) and ToolRoo(tm) Handy Pouches up for sale by the end of the week if all goes well. (My last sewing company strung me out for 2 weeks, then gave all my materials back to me saying she was too busy to make them. sigh) The story on these tool pouches is that a metalworker posted his wish list of things he wanted manufacturers to build. I found it doable and interesting, then manufactured 3 for him. He loves 'em, so I'm going into production on the things. They're padded tool pouches which fit onto any corded tool's cord (or can ring onto a cordless), and they're large enough to hold all of the little wrenches/bits/adapters which go with each tool to keep you from searching all over the shop for them each time you use the tool. I'm padding them for long life, and making them out of the same heavy-duty materials the glare guards are made from. Polyester twill or waterproofed 420 Denier ripstop nylon sheeting, closed cell foam, and naugahyde or cotton binding. /sales pitch vbg Oh, I forgot the last tip for you: Learn how to do all that sharpening on your own. It is a skill you'll need and use for the rest of your life. A good book to get you started or bring your skill up a notch is Leonard Lee's "Complete Guide to Sharpening". http://www.leevalley.com/wood/page.a...=1,43072,43091 There's one copy on Ebay for $3.99 with 5 days to go. www.half.com has one for $10.59 Here are a dozen mo http://isbn.nu/1561581259 ------------------------------------------------------------------- Do. Or do not. * Stylin' Web Design Services There is no try. --Yoda * http://www.diversify.com ------------------------------------------------------------------- |
#34
|
|||
|
|||
|
#35
|
|||
|
|||
Bill and Larry,
Thanks for the info. I called a machine shop who said they could grind a 7 x 16 inch magnetic grinder table full of plane blades for about $35 (1/2 hour shop time). The table will hold eight 2" wide stanley type blades. That's only $5 per blade and seems like a pretty good deal. If it is so affordable then why don't plane blade makers offer this as an upgrade. And the machine shop said I should talk to the sharpening shop across the street because they are always cheeper. I think I'll pay them a visit soon. I do not want to avoid sharpening. Even though I have a poor selection of sharpening tools I do enjoy putting an edge on a blade. But flattening backs of blades seems like a real pain in the elbows, literally. Also I think a surface grinder will produce a flatter back. The geometry of the process is just better. Maybe I just need better sharpening equipment...like my own surface grinder. haha. Thank again. I've learned a lot. Peter |
#36
|
|||
|
|||
On 26 Apr 2005 19:15:53 -0700, the inscrutable
spake: Bill and Larry, Thanks for the info. I called a machine shop who said they could grind a 7 x 16 inch magnetic grinder table full of plane blades for about $35 (1/2 hour shop time). The table will hold eight 2" wide stanley type blades. That's only $5 per blade and seems like a pretty good deal. If it is so affordable then why don't plane blade makers offer this as an upgrade. And the machine shop said I should talk to the sharpening shop across the street because they are always cheeper. I think I'll pay them a visit soon. Good idea. Be sure to note precisely what *really*sharp* feels like, then you'll know how to reproduce it when sharpening things yourself. I -thought- I knew for years, then I received a Pfeil gouge which was one-atom-sharp. My Scary Sharpening(tm) techniques improved that day. I do not want to avoid sharpening. Even though I have a poor selection of sharpening tools I do enjoy putting an edge on a blade. But flattening backs of blades seems like a real pain in the elbows, literally. Also I think a surface grinder will produce a flatter back. The geometry of the process is just better. Maybe I just need better sharpening equipment...like my own surface grinder. haha. Nah, all you need are a few sheets of Scarypaper(tm) and a diamond plate. I use a 1" belt sander with a 120 grit belt to take off lots of metal (flat grind, not hollow) or change angles, then go to the 2x6" DMT red diamond plate (600 grit), then to 1200 grit sandpaper, then to a chromium dioxide-charged leather strop for final polish. Total time for a blade (say an old Stanley #5) is about 10 minutes. I hone on the 1200 + strop in between sharpenings (about 3 minutes). If I spent more time working in the shop, I'm sure I'd do it quicker. Thank again. I've learned a lot. You're very welcome. ------------------------------------------------------------------- Do. Or do not. * Stylin' Web Design Services There is no try. --Yoda * http://www.diversify.com ------------------------------------------------------------------- |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
FAQ: HAND TOOLS (Repost) | Woodworking | |||
20mm channelling/chasing for oval conduit using SDS+ drill and Armeg EBS Extended 20mm Channelling Chisel | UK diy | |||
Chisel dissapointment | Woodworking |