Countersink Tool Made from Surplus Junk

 

 

chuck and countersink 016

 

I was working on a drill chuck for my mill, and I ran across a Jacobs 3/8″ keyless chuck that I pulled off a power drill that leaked it’s Magic Smoke. The chuck was the only thing salvageable from the drill, and I tossed it in the chuck drawer for a future project.

 

Read more

Changing an Arbor on a Jacobs Drill Chuck

drill chucks 001

 

Anyone who owns old machines probably scours Ebay for orphaned tooling for their pride and joy. One of the benefits/curses of that pastime is that you tend to accumulate broken/wore out tooling. Some of the broken drill chucks I have acquired over the years are starting to look pretty good to me considering some of the prices I’m seeing online, these days. Last year I bought an Llambrich drill chuck (made in Spain by Jacobs Chucks) at the CAMS Yard Sale with an R8 arbor that worked real nice (initially, anyway). The last time I used it there seemed to be an awful lot of runout, and I put it aside for future investigation. Today I decided to take a look at it……………..

 

Read more

Can You Identify This Tapping Head?

I could use a little help, I bought this tapping head at last years CAMS Yard Sale, and have been unable to find any info on the manufacturer. I was able to get a J440 collet last week from Ebay seller C178, and a R8 adapter from JTS Machine, so I’m about ready to start tapping. I really needed to get a larger tap collet than the one I got with the head, because most of the tapping I do is 5/16 or larger. the J441 collet is for a much smaller tap. I was able to (finally) find a collet that went to 5/8 (tap capacity).

What I would like to find out is: What is the maker of this tapping head (there are no markings), and what are the service requirements? I don’t know if the head needs oil, or is it run dry? There appears to be a drain plug in the bottom, which I don’t want to remove unless I have some info first. Heres a couple of shots and the specs off the chuck.

 

Read more