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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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#1
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TiN drill bits
Hi,
There's a set on promotion at CPC: http://cpc.farnell.com/duratool/d002...?Ntt=tl1044908 though Toolstation seems to sell an identical set: http://www.toolstation.com/shop/Powe.../sd2784/p68138 Has anyone bought either? Any good? |
#2
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TiN drill bits
In article ,
Fred writes: Hi, There's a set on promotion at CPC: http://cpc.farnell.com/duratool/d002...?Ntt=tl1044908 I think I have these, but not used them yet - bought them and dropped them off at a friends place where I'm helping him with some DIY. Note that they are for drilling wood and plastic, not metal. -- Andrew Gabriel [email address is not usable -- followup in the newsgroup] |
#3
Posted to uk.d-i-y
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TiN drill bits
In article ,
Fred wrote: Hi, There's a set on promotion at CPC: http://cpc.farnell.com/duratool/d002...?Ntt=tl1044908 though Toolstation seems to sell an identical set: http://www.toolstation.com/shop/Powe.../sd2784/p68138 Has anyone bought either? Any good? They actually only have a coating. What good that does apart from looking pretty, I dunno. Look out for the same thing in Lidl. Cheaper than either. And very decent quality. Perhaps slightly brittle in the small sizes - but they are cheap enough in bulk anyway. -- *Ever stop to think and forget to start again? Dave Plowman London SW To e-mail, change noise into sound. |
#5
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TiN drill bits
In article ,
Andrew Gabriel wrote: In article , Fred writes: Hi, There's a set on promotion at CPC: http://cpc.farnell.com/duratool/d002...?Ntt=tl1044908 I think I have these, but not used them yet - bought them and dropped them off at a friends place where I'm helping him with some DIY. Note that they are for drilling wood and plastic, not metal. Ah - didn't read that bit. Wood drills are generally cheaper than HSS types - which makes them even poorer value, compared to the Lidl ones which are for steel, as well as wood and plastics. -- *Wrinkled was not one of the things I wanted to be when I grew up Dave Plowman London SW To e-mail, change noise into sound. |
#6
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TiN drill bits
On Thursday, September 20, 2012 11:04:03 AM UTC+1, Dave Plowman (News) wrote:
In article , Fred wrote: Hi, There's a set on promotion at CPC: http://cpc.farnell.com/duratool/d002...?Ntt=tl1044908 though Toolstation seems to sell an identical set: http://www.toolstation.com/shop/Powe.../sd2784/p68138 Has anyone bought either? Any good? They actually only have a coating. What good that does apart from looking pretty, I dunno. the thin titanium coating is many times harder than hss, and lower friction. NT Look out for the same thing in Lidl. Cheaper than either. And very decent quality. Perhaps slightly brittle in the small sizes - but they are cheap enough in bulk anyway. |
#7
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TiN drill bits
In article ,
wrote: They actually only have a coating. What good that does apart from looking pretty, I dunno. the thin titanium coating is many times harder than hss, and lower friction. So fine if the drill comes well sharpened - and you chuck it away when blunt? -- *Out of my mind. Back in five minutes. Dave Plowman London SW To e-mail, change noise into sound. |
#8
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TiN drill bits
On Thursday, September 20, 2012 4:13:14 PM UTC+1, Dave Plowman (News) wrote:
In article , meow2222 wrote: They actually only have a coating. What good that does apart from looking pretty, I dunno. the thin titanium coating is many times harder than hss, and lower friction. So fine if the drill comes well sharpened - and you chuck it away when blunt? Yup Send em to me |
#9
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TiN drill bits
On 20/09/2012 10:54, Andrew Gabriel wrote:
In article , Fred writes: Hi, There's a set on promotion at CPC: http://cpc.farnell.com/duratool/d002...?Ntt=tl1044908 I think I have these, but not used them yet - bought them and dropped them off at a friends place where I'm helping him with some DIY. Note that they are for drilling wood and plastic, not metal. I'd have thought that TiN was a waste of time on wood and plastic bits. Presumably it is *real* TiN and not the yellow fake coating which is sometimes found on cheapies? Real TiN makes a big difference on proper HSS bits, screwdriver bits, etc. It is also near universal on carbide inserts used on machining centres. |
#10
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TiN drill bits
On Thursday, September 20, 2012 7:50:23 PM UTC+1, newshound wrote:
On 20/09/2012 10:54, Andrew Gabriel wrote: In article , Fred writes: Hi, There's a set on promotion at CPC: http://cpc.farnell.com/duratool/d002...?Ntt=tl1044908 I think I have these, but not used them yet - bought them and dropped them off at a friends place where I'm helping him with some DIY. Note that they are for drilling wood and plastic, not metal. I'd have thought that TiN was a waste of time on wood and plastic bits. Presumably it is *real* TiN and not the yellow fake coating which is sometimes found on cheapies? Real TiN makes a big difference on proper HSS bits, screwdriver bits, etc. It is also near universal on carbide inserts used on machining centres. Why do you say fake coatings? If they were fake they'd soon wear off. NT |
#11
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TiN drill bits
On Thu, 20 Sep 2012 09:54:41 +0000 (UTC),
(Andrew Gabriel) wrote: Note that they are for drilling wood and plastic, not metal. Thanks. That's interesting. Is it that all TiN bits that are unsuitable for metal or just this set from CPC? I usually use the Bosch multimaterial bits but read on the wiki how useful TiN coated bits were and I couldn't resist a bargain http://wiki.diyfaq.org.uk/index.php?...um_or_TiN_Bits says that TiN coated bits are good for aluminium, though it doesn't mention other metals. |
#12
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TiN drill bits
On 20/09/2012 10:00, Fred wrote:
Hi, There's a set on promotion at CPC: http://cpc.farnell.com/duratool/d002...?Ntt=tl1044908 though Toolstation seems to sell an identical set: http://www.toolstation.com/shop/Powe.../sd2784/p68138 Has anyone bought either? Any good? I have the Toolsatan set. Seems OK to me, but I don't drill that many holes in metal. -- Dave - The Medway Handyman www.medwayhandyman.co.uk |
#13
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TiN drill bits
In article ,
Fred wrote: Note that they are for drilling wood and plastic, not metal. Thanks. That's interesting. Is it that all TiN bits that are unsuitable for metal or just this set from CPC? The ones Lidl sell are suitable for steel too - that's what I mostly use them on. It could be just the way the tip is ground that makes them for wood etc only. -- *Arkansas State Motto: Don't Ask, Don't Tell, Don't Laugh. Dave Plowman London SW To e-mail, change noise into sound. |
#14
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TiN drill bits
In message , Fred
writes Hi, There's a set on promotion at CPC: http://cpc.farnell.com/duratool/d002...lloy-steel-dri ll/dp/TL1044908?Ntt=tl1044908 Duratool? Aren't they advertised on TV as cheese sticks? though Toolstation seems to sell an identical set: http://www.toolstation.com/shop/Powe...+Titanium+Dril l+Bits/HSS+Titanium+Metric+Drill+Bit+Set+19+Piece/d80/sd2784/p68138 Has anyone bought either? Any good? -- geoff |
#15
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TiN drill bits
In message , The Other Mike
writes On Thu, 20 Sep 2012 09:54:41 +0000 (UTC), (Andrew Gabriel) wrote: In article , Fred writes: Hi, There's a set on promotion at CPC: http://cpc.farnell.com/duratool/d002...-alloy-steel-d rill/dp/TL1044908?Ntt=tl1044908 I think I have these, but not used them yet - bought them and dropped them off at a friends place where I'm helping him with some DIY. Note that they are for drilling wood and plastic, not metal. Can't understand that. I regularly use Titaniium Nitride coated drills on metals without a problem (mild steel, alloy steel, aluminium alloys, brass, cast iron) Some are also split points, the majority of my normal HSS drills once they need regrinding are also split points They are usually Dormer or Guhring though and not some unknown Chinese pound shop special. Duratool are hardly "unknown" -- geoff |
#16
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TiN drill bits
On Thursday, September 20, 2012 11:40:50 PM UTC+1, Dave Plowman (News) wrote:
In article , Fred wrote: Note that they are for drilling wood and plastic, not metal. Thanks. That's interesting. Is it that all TiN bits that are unsuitable for metal or just this set from CPC? The ones Lidl sell are suitable for steel too - that's what I mostly use them on. It could be just the way the tip is ground that makes them for wood etc only. Titanium coating gives better performance in all materials. Whether a bit's sutiable for metal depends on how its ground. Most titanium bits are regular twist drills optimised for drilling steel - which also makes them poor performers on wood, but its still the most popular bit shape for wood drilling. NT |
#17
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TiN drill bits
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#18
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TiN drill bits
In article ,
The Other Mike wrote: Can't understand that. I regularly use Titaniium Nitride coated drills on metals without a problem (mild steel, alloy steel, aluminium alloys, brass, cast iron) Some are also split points, the majority of my normal HSS drills once they need regrinding are also split points They are usually Dormer or Guhring though and not some unknown Chinese pound shop special. It would be interesting to do a comparison between Dormer etc and the Lidl sets. The Lidl set goes from 0.5 - 10mm in 0.5mm steps, and comes in a decent steel box. For about 6 quid. I've found them very satisfactory for jobbing work. How much would a Dormer set cost? The odd ones I've bought from the local tool shop are terrifyingly expensive. I really can't see them being worth the extra. -- *I went to school to become a wit, only got halfway through. Dave Plowman London SW To e-mail, change noise into sound. |
#19
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TiN drill bits
On Fri, 21 Sep 2012 00:01:57 +0100, geoff wrote:
In message , The Other Mike They are usually Dormer or Guhring though and not some unknown Chinese pound shop special. Duratool are hardly "unknown" Despite being a Farnell brand, IMHO they carry the same aura as Ratners the jewellers -- |
#20
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TiN drill bits
ifty quiOn Fri, 21 Sep 2012 10:24:47 +0100, "Dave Plowman (News)"
wrote: In article , The Other Mike wrote: Can't understand that. I regularly use Titaniium Nitride coated drills on metals without a problem (mild steel, alloy steel, aluminium alloys, brass, cast iron) Some are also split points, the majority of my normal HSS drills once they need regrinding are also split points They are usually Dormer or Guhring though and not some unknown Chinese pound shop special. It would be interesting to do a comparison between Dormer etc and the Lidl sets. The Lidl set goes from 0.5 - 10mm in 0.5mm steps, and comes in a decent steel box. For about 6 quid. I've found them very satisfactory for jobbing work. How much would a Dormer set cost? The odd ones I've bought from the local tool shop are terrifyingly expensive. I really can't see them being worth the extra. There are no direct Dormer equivalents in metal boxes of that range, 0.1 steps to 6mm @ 80 quid or 0.5 steps to 13 @ 100 quid Plastic cased 0.1 steps to 10mm are about fifty quid As to if they are worth it. For the vast majority, no. -- |
#21
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TiN drill bits
On Friday, September 21, 2012 8:27:09 AM UTC+1, newshound wrote:
On 20/09/2012 19:59, meow2222 wrote: I'd have thought that TiN was a waste of time on wood and plastic bits. Presumably it is *real* TiN and not the yellow fake coating which is sometimes found on cheapies? Real TiN makes a big difference on proper HSS bits, screwdriver bits, etc. It is also near universal on carbide inserts used on machining centres. Why do you say fake coatings? If they were fake they'd soon wear off. NT They do. They are put on to fool people into thinking they are high quality bits. All I can say is I often go for cheap brands with drill bits, and have never had a titanium coating wear off. Cheap titanium screwdriver bits I did try once, and had poor results with, so I don't buy those. The problem wasn't the coating, but the underlying metal giving way. NT |
#22
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TiN drill bits
On Fri, 21 Sep 2012 12:27:44 +0100, The Other Mike
wrote: Despite being a Farnell brand, IMHO they carry the same aura as Ratners the jewellers Yes, I don't know why, but I think that too. Perhaps it's just a poor choice of name; it sounds cheap and nasty regardless of how good the items are. That's why I was asking about them here before buying. |
#23
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TiN drill bits
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#24
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TiN drill bits
On Monday, September 24, 2012 8:48:11 PM UTC+1, Fred wrote:
On Thu, 20 Sep 2012 17:07:23 -0700 (PDT), meow2222 wrote: Titanium coating gives better performance in all materials. Whether a bit's= sutiable for metal depends on how its ground. Most titanium bits are regul= ar twist drills optimised for drilling steel - which also makes them poor p= erformers on wood, but its still the most popular bit shape for wood drilli= ng. I'm not familiar with all the different types of bit geometry but I guess the "split point" bit is the key phrase here. Is that a style optimized for wood? Perhaps the toolstatioon set is not split point, which would explain the difference? General purpose twist drills have cutting edge angles optimised for steel. These angles are terrible performers with wood. I regrind dead bits to make much more aggressively angled twist drills for wood use, and the difference is like night & day. http://wiki.diyfaq.org.uk/index.php?title=Drill_bit NT |
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