Used Craftsman drill and bits - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**dmjlambert** · 11-23-2019, 06:49 PM

I went to the flea market today and found this drill. I wonder if any of you guys recognize what sort of bits these are that were in the handle. I don't believe I've seen any like this, they have a straight slot instead of the spiral I am accustomed to seeing on drill bits.

**Getter-Done** · 11-23-2019, 08:47 PM

Those drills with that drill holder was used for Bronze, Brass and Aluminum.
Bronze and brass tend to pull a regular twist drill into the work-piece quicker than a person can control. Those straight flute drills don't make that long stringy chip.
A trick to use a twist drill on non-ferrous material is to dull the sharp edges a little so it won't pull in as bad.

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**dmjlambert** · 11-23-2019, 11:57 PM

Excellent, thanks for that info, I like to learn stuff like that.

11-23-2019, 06:49 PM	#1
dmjlambert Senior Member Join Date: Apr 2016 Location: Cypress, TX Posts: 4,051	Used Craftsman drill and bits I went to the flea market today and found this drill. I wonder if any of you guys recognize what sort of bits these are that were in the handle. I don't believe I've seen any like this, they have a straight slot instead of the spiral I am accustomed to seeing on drill bits. Attached Images

11-23-2019, 08:47 PM	#2
Getter-Done Senior Member Join Date: Dec 2009 Location: TN. Posts: 9,870	Re: Used Craftsman drill and bits Those drills with that drill holder was used for Bronze, Brass and Aluminum. Bronze and brass tend to pull a regular twist drill into the work-piece quicker than a person can control. Those straight flute drills don't make that long stringy chip. A trick to use a twist drill on non-ferrous material is to dull the sharp edges a little so it won't pull in as bad. . __________________ ________________________________________________________________________________________ ____________________________________________ The early bird gets the worm, But the second mouse gets the cheese 85 Chevy K-20 63 Impala (my high school car) http://67-72chevytrucks.com/vboard/s...Crew Cab Build

11-23-2019, 11:57 PM	#3
dmjlambert Senior Member Join Date: Apr 2016 Location: Cypress, TX Posts: 4,051	Re: Used Craftsman drill and bits Excellent, thanks for that info, I like to learn stuff like that.



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