Key for small Cushman drill chuck
I got a Dumore "precision" drill press at the dump, but it's missing the
key for the Cushman chuck. I found a Jacob's chuck with matching specs & I can get a chuck for it that should fit my Cushman. But, just to be sure, I'd like to check that the tooth pitch matches. Does any one have a Model 0 Jacob's chuck that they can look at for me? I need the number of teeth on the sleeve. The Model 0 is the smallest Jacob's makes: 0-5/32 (4 mm) capacity. The sleeve is .85" diam. Thanks, Bob |
Key for small Cushman drill chuck
On Mon, 04 Oct 2010 11:58:39 -0400, Bob Engelhardt
wrote: I got a Dumore "precision" drill press at the dump, but it's missing the key for the Cushman chuck. I found a Jacob's chuck with matching specs & I can get a chuck for it that should fit my Cushman. But, just to be sure, I'd like to check that the tooth pitch matches. Does any one have a Model 0 Jacob's chuck that they can look at for me? I need the number of teeth on the sleeve. The Model 0 is the smallest Jacob's makes: 0-5/32 (4 mm) capacity. The sleeve is .85" diam. 23 teeth -- Ned Simmons |
Key for small Cushman drill chuck
On Mon, 04 Oct 2010 11:58:39 -0400, Bob Engelhardt
wrote: I got a Dumore "precision" drill press at the dump, but it's missing the key for the Cushman chuck. I found a Jacob's chuck with matching specs & I can get a chuck for it that should fit my Cushman. But, just to be sure, I'd like to check that the tooth pitch matches. Does any one have a Model 0 Jacob's chuck that they can look at for me? I need the number of teeth on the sleeve. The Model 0 is the smallest Jacob's makes: 0-5/32 (4 mm) capacity. The sleeve is .85" diam. Thanks, Bob Hey Bob, Got one on a "sensitive drill press" gadget. Both Chuck and Key here are Jacobs No. 0 and chuck is also stamped as having 0 Taper (for mounting I assume) Chuck has 23 teeth, Jacobs KEY 0 has 11 teeth. Gives a ratio of 2:1 turns of the key to one turn of the sleeve. Key guide pin diameter is .153 long and .1235 diameter (I will get out the pin gauges and check the chuck holes if you want, but I assume they are 1/8") Key main shaft with cross-lever is .35 diameter by approx. .83 from top the top of the teeth, and 1.21 overall top to tip. Major diameter of Key "barrel" just above teeth is approx. .440 Not real sure how to measure easily, but across one tooth and one land at the minor diameter I get approx. .334 If this isn't enough, grime a shout and I'll dig deeper, but I note that KBC Tools http://www.kbctools.com/can/main.cfm has SKU # 1-508-03505 JACOBS K0 CHUCK KEYS $4.75 That may be a Canadian site and price, but if you are in the USA, try typing www.kbctools.com and get the correct US site. Take care. Brian Lawson, Bothwell, Ontario. |
Key for small Cushman drill chuck
Ned Simmons wrote:
Bob Engelhardt wrote: ... I need the number of teeth on the sleeve. ... 23 teeth Thanks. Mine is 24 (I counted twice) - close enough, I hope. Let's see: .85 x PI / 24 = .111; .../23 = .116; delta = .005. It's worth a shot - the chuck is useless without a key. Bob |
Key for small Cushman drill chuck
Brian Lawson wrote:
Hey Bob, Got one on a "sensitive drill press" gadget. Ah, "sensitive" is a much better adjective than "precision". .... Chuck has 23 teeth, Jacobs KEY 0 has 11 teeth. ... It's nice that you and Ned agree - could get ugly otherwise G. Key guide pin diameter is .153 long and .1235 diameter (I will get out the pin gauges and check the chuck holes if you want, but I assume they are 1/8") No need to check, thanks anyhow. The Jacob's spec is .125. ... Major diameter of Key "barrel" just above teeth is approx. .440 Not real sure how to measure easily, but across one tooth and one land at the minor diameter I get approx. .334 Thanks - that looks like a good match to my chuck. If this isn't enough, grime a shout and I'll dig deeper, Oh, this is enough, for sure. but I note that KBC Tools has SKU # 1-508-03505 JACOBS K0 CHUCK KEYS $4.75 ... Thanks. McM-Carr has them too ($2.13), but I might feel compelled to order some other stuff. Thanks again - I'm off to mcmaster.com Bob |
Key for small Cushman drill chuck
Bob Engelhardt wrote:
Ned Simmons wrote: Bob Engelhardt wrote: ... I need the number of teeth on the sleeve. ... 23 teeth Thanks. Mine is 24 (I counted twice) - close enough, I hope. Let's see: .85 x PI / 24 = .111; .../23 = .116; delta = .005. It's worth a shot - the chuck is useless without a key. Bob Not completely useless, just tighten by hand, stick the back end of an appropriate sized drill in one of the chuck's holes. Then place the business end of a screwdriver against that, and use it to lever the the chuck teeth around. G DAMHIKT Jeff -- Jeffry Wisnia (W1BSV + Brass Rat '57 EE) The speed of light is 1.8*10e12 furlongs per fortnight. |
Key for small Cushman drill chuck
On Mon, 04 Oct 2010 13:42:43 -0400, Brian Lawson
wrote: On Mon, 04 Oct 2010 11:58:39 -0400, Bob Engelhardt wrote: I got a Dumore "precision" drill press at the dump, but it's missing the key for the Cushman chuck. I found a Jacob's chuck with matching specs & I can get a chuck for it that should fit my Cushman. But, just to be sure, I'd like to check that the tooth pitch matches. Does any one have a Model 0 Jacob's chuck that they can look at for me? I need the number of teeth on the sleeve. The Model 0 is the smallest Jacob's makes: 0-5/32 (4 mm) capacity. The sleeve is .85" diam. Thanks, Bob Hey Bob, Got one on a "sensitive drill press" gadget. Both Chuck and Key here are Jacobs No. 0 and chuck is also stamped as having 0 Taper (for mounting I assume) Chuck has 23 teeth, Jacobs KEY 0 has 11 teeth. Gives a ratio of 2:1 turns of the key to one turn of the sleeve. Key guide pin diameter is .153 long and .1235 diameter (I will get out the pin gauges and check the chuck holes if you want, but I assume they are 1/8") Key main shaft with cross-lever is .35 diameter by approx. .83 from top the top of the teeth, and 1.21 overall top to tip. Major diameter of Key "barrel" just above teeth is approx. .440 Not real sure how to measure easily, but across one tooth and one land at the minor diameter I get approx. .334 If this isn't enough, grime a shout and I'll dig deeper, but I note that KBC Tools http://www.kbctools.com/can/main.cfm has SKU # 1-508-03505 JACOBS K0 CHUCK KEYS $4.75 That may be a Canadian site and price, but if you are in the USA, try typing www.kbctools.com and get the correct US site. Take care. Brian Lawson, Bothwell, Ontario. You saved me a trip downstairs to measure mine. Gerry :-)} London, Canada |
Key for small Cushman drill chuck
Gerald Miller wrote: On Mon, 04 Oct 2010 13:42:43 -0400, Brian Lawson wrote: On Mon, 04 Oct 2010 11:58:39 -0400, Bob Engelhardt wrote: I got a Dumore "precision" drill press at the dump, but it's missing the key for the Cushman chuck. I found a Jacob's chuck with matching specs & I can get a chuck for it that should fit my Cushman. But, just to be sure, I'd like to check that the tooth pitch matches. Does any one have a Model 0 Jacob's chuck that they can look at for me? I need the number of teeth on the sleeve. The Model 0 is the smallest Jacob's makes: 0-5/32 (4 mm) capacity. The sleeve is .85" diam. Thanks, Bob Hey Bob, Got one on a "sensitive drill press" gadget. Both Chuck and Key here are Jacobs No. 0 and chuck is also stamped as having 0 Taper (for mounting I assume) Chuck has 23 teeth, Jacobs KEY 0 has 11 teeth. Gives a ratio of 2:1 turns of the key to one turn of the sleeve. Key guide pin diameter is .153 long and .1235 diameter (I will get out the pin gauges and check the chuck holes if you want, but I assume they are 1/8") Key main shaft with cross-lever is .35 diameter by approx. .83 from top the top of the teeth, and 1.21 overall top to tip. Major diameter of Key "barrel" just above teeth is approx. .440 Not real sure how to measure easily, but across one tooth and one land at the minor diameter I get approx. .334 If this isn't enough, grime a shout and I'll dig deeper, but I note that KBC Tools http://www.kbctools.com/can/main.cfm has SKU # 1-508-03505 JACOBS K0 CHUCK KEYS $4.75 That may be a Canadian site and price, but if you are in the USA, try typing www.kbctools.com and get the correct US site. You saved me a trip downstairs to measure mine. You leave yours laying around? -- Politicians should only get paid if the budget is balanced, and there is enough left over to pay them. |
Key for small Cushman drill chuck
On Mon, 04 Oct 2010 22:34:56 -0400, "Michael A. Terrell"
wrote: Gerald Miller wrote: On Mon, 04 Oct 2010 13:42:43 -0400, Brian Lawson wrote: On Mon, 04 Oct 2010 11:58:39 -0400, Bob Engelhardt wrote: I got a Dumore "precision" drill press at the dump, but it's missing the key for the Cushman chuck. I found a Jacob's chuck with matching specs & I can get a chuck for it that should fit my Cushman. But, just to be sure, I'd like to check that the tooth pitch matches. Does any one have a Model 0 Jacob's chuck that they can look at for me? I need the number of teeth on the sleeve. The Model 0 is the smallest Jacob's makes: 0-5/32 (4 mm) capacity. The sleeve is .85" diam. Thanks, Bob Hey Bob, Got one on a "sensitive drill press" gadget. Both Chuck and Key here are Jacobs No. 0 and chuck is also stamped as having 0 Taper (for mounting I assume) Chuck has 23 teeth, Jacobs KEY 0 has 11 teeth. Gives a ratio of 2:1 turns of the key to one turn of the sleeve. Key guide pin diameter is .153 long and .1235 diameter (I will get out the pin gauges and check the chuck holes if you want, but I assume they are 1/8") Key main shaft with cross-lever is .35 diameter by approx. .83 from top the top of the teeth, and 1.21 overall top to tip. Major diameter of Key "barrel" just above teeth is approx. .440 Not real sure how to measure easily, but across one tooth and one land at the minor diameter I get approx. .334 If this isn't enough, grime a shout and I'll dig deeper, but I note that KBC Tools http://www.kbctools.com/can/main.cfm has SKU # 1-508-03505 JACOBS K0 CHUCK KEYS $4.75 That may be a Canadian site and price, but if you are in the USA, try typing www.kbctools.com and get the correct US site. You saved me a trip downstairs to measure mine. You leave yours laying around? In the shop. Gerry :-)} London, Canada |
Key for small Cushman drill chuck
Gerald Miller wrote: Michael A. Terrell wrote: You leave yours laying around? In the shop. My problem quickly becomes, 'Which shop'. Is it in the 30' *40' garage? Or is it in the 18' *28' shop? Maybe in the 12' * 24' cottage? Or the 12' * 12' shop? It could be in the 12' * 12' laundry building. Or somewhere in the toolboxes in the house. Maybe it's in my truck. Or did I loan it to someone? -- Politicians should only get paid if the budget is balanced, and there is enough left over to pay them. |
Key for small Cushman drill chuck
Michael A. Terrell wrote:
Gerald Miller wrote: Michael A. Terrell wrote: You leave yours laying around? In the shop. My problem quickly becomes, 'Which shop'. Is it in the 30' *40' garage? Or is it in the 18' *28' shop? Maybe in the 12' * 24' cottage? Or the 12' * 12' shop? It could be in the 12' * 12' laundry building. Or somewhere in the toolboxes in the house. Maybe it's in my truck. Or did I loan it to someone? Ok. Fair enough... -- Richard Lamb |
Key for small Cushman drill chuck
On Mon, 04 Oct 2010 17:28:38 -0400, Bob Engelhardt
wrote: Brian Lawson wrote: Hey Bob, Got one on a "sensitive drill press" gadget. Ah, "sensitive" is a much better adjective than "precision". ... Chuck has 23 teeth, Jacobs KEY 0 has 11 teeth. ... It's nice that you and Ned agree - could get ugly otherwise G. Fer sure. If Brian had come up with a different number I'd have no choice but to start slinging insults concerning his political leanings, sexual orientation, physical stature and nationality. -- Ned Simmons |
Key for small Cushman drill chuck
On Mon, 04 Oct 2010 17:28:38 -0400
Bob Engelhardt wrote: snip Thanks. McM-Carr has them too ($2.13), but I might feel compelled to order some other stuff. Thanks again - I'm off to mcmaster.com A lot of places sell generic four-in-one keys cheap. For instance: http://www.harborfreightusa.com/usa/...do?itemid=1745 === Four-Way Chuck Key Don't worry about lost chuck keys€”this one replaces them all! Use one key for 1/4'', 3/8'', and 1/2'' chucks Fits all major brands - over 125 different kinds Also use the key's center for acetylene tanks Perfect for on the job when you use more than one drill === I suspect your local hardware carries something similar and may provide instant gratification. -- Leon Fisk Grand Rapids MI/Zone 5b Remove no.spam for email |
Key for small Cushman drill chuck
Leon Fisk wrote: On Mon, 04 Oct 2010 17:28:38 -0400 Bob Engelhardt wrote: snip Thanks. McM-Carr has them too ($2.13), but I might feel compelled to order some other stuff. Thanks again - I'm off to mcmaster.com A lot of places sell generic four-in-one keys cheap. For instance: http://www.harborfreightusa.com/usa/...do?itemid=1745 === Four-Way Chuck Key Don't worry about lost chuck keys, this one replaces them all! Use one key for 1/4'', 3/8'', and 1/2'' chucks Fits all major brands - over 125 different kinds Also use the key's center for acetylene tanks Perfect for on the job when you use more than one drill === I suspect your local hardware carries something similar There are more than four types. I have one of those and about a dozen chucks it doesn't fit. Lowes carries a nice selection of chuck keys. A local store let me carry in an old drill to find the right key. If the drill is too big you can always remove it, first. -- Politicians should only get paid if the budget is balanced, and there is enough left over to pay them. |
Key for small Cushman drill chuck
On Tue, 05 Oct 2010 02:15:54 -0400, "Michael A. Terrell"
wrote: Gerald Miller wrote: Michael A. Terrell wrote: You leave yours laying around? In the shop. My problem quickly becomes, 'Which shop'. Is it in the 30' *40' garage? Or is it in the 18' *28' shop? Maybe in the 12' * 24' cottage? Or the 12' * 12' shop? It could be in the 12' * 12' laundry building. Or somewhere in the toolboxes in the house. Maybe it's in my truck. Or did I loan it to someone? Crom...sounds like we have similar issues. Gunner I am the Sword of my Family and the Shield of my Nation. If sent, I will crush everything you have built, burn everything you love, and kill every one of you. (Hebrew quote) |
Key for small Cushman drill chuck
Gunner Asch wrote: On Tue, 05 Oct 2010 02:15:54 -0400, "Michael A. Terrell" wrote: Gerald Miller wrote: Michael A. Terrell wrote: You leave yours laying around? In the shop. My problem quickly becomes, 'Which shop'. Is it in the 30' *40' garage? Or is it in the 18' *28' shop? Maybe in the 12' * 24' cottage? Or the 12' * 12' shop? It could be in the 12' * 12' laundry building. Or somewhere in the toolboxes in the house. Maybe it's in my truck. Or did I loan it to someone? Crom...sounds like we have similar issues. I can only open a couple doors, but there is no room to get inside three buildings right now. I am trying to give away enough computer monitors and printers to have room to work again. :( -- Politicians should only get paid if the budget is balanced, and there is enough left over to pay them. |
Key for small Cushman drill chuck
On Sat, 09 Oct 2010 15:58:03 -0400, "Michael A. Terrell"
wrote: Gunner Asch wrote: On Tue, 05 Oct 2010 02:15:54 -0400, "Michael A. Terrell" wrote: Gerald Miller wrote: Michael A. Terrell wrote: You leave yours laying around? In the shop. My problem quickly becomes, 'Which shop'. Is it in the 30' *40' garage? Or is it in the 18' *28' shop? Maybe in the 12' * 24' cottage? Or the 12' * 12' shop? It could be in the 12' * 12' laundry building. Or somewhere in the toolboxes in the house. Maybe it's in my truck. Or did I loan it to someone? Crom...sounds like we have similar issues. I can only open a couple doors, but there is no room to get inside three buildings right now. I am trying to give away enough computer monitors and printers to have room to work again. :( Among other things, plus I have two tool using sons in close proximity, one happy that I have the tool regardless of quality, the other, happy to use what I have until he can locate one that meets his standard of quality. Oh well, they both provide tech support to the old guy when he is stumped. Gerry :-)} London, Canada |
Key for small Cushman drill chuck
Gerald Miller wrote: On Sat, 09 Oct 2010 15:58:03 -0400, "Michael A. Terrell" wrote: Gunner Asch wrote: On Tue, 05 Oct 2010 02:15:54 -0400, "Michael A. Terrell" wrote: Gerald Miller wrote: Michael A. Terrell wrote: You leave yours laying around? In the shop. My problem quickly becomes, 'Which shop'. Is it in the 30' *40' garage? Or is it in the 18' *28' shop? Maybe in the 12' * 24' cottage? Or the 12' * 12' shop? It could be in the 12' * 12' laundry building. Or somewhere in the toolboxes in the house. Maybe it's in my truck. Or did I loan it to someone? Crom...sounds like we have similar issues. I can only open a couple doors, but there is no room to get inside three buildings right now. I am trying to give away enough computer monitors and printers to have room to work again. :( Among other things, plus I have two tool using sons in close proximity, one happy that I have the tool regardless of quality, the other, happy to use what I have until he can locate one that meets his standard of quality. Oh well, they both provide tech support to the old guy when he is stumped. My dad and stepmom recently moved here from up north. My dad said that he told someone he was moving south to get good tech support. :) -- Politicians should only get paid if the budget is balanced, and there is enough left over to pay them. |
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