Newly made machinist jacks

[whateg0]

I've been needing these for awhile. I bought the Starrett screws off of Ebay for a reasonable price, but they've been sitting in the drawer since then. I finally had a chance to sit down and draw them up. The plain one was done first, then I thought, why not make them a little nicer? So, I changed it up and added a knurled ring. The bottoms are recessed to sit on spacers. The one with chatter was made with a form tool. The other was made with the radius cutter I made a few months ago, though this is the first time it's cut concave shapes. Aside from the finish in the HRS, I'm pleased with the way they turned out.

Dave

[neanderman]

Very nicely done!

I've looked at such items often, wondering, "Where does one use these?"

[whateg0]

... "Where does one use these?"

Anywhere one wants to!

Actually, the times I've most needed them are on the mill when machining a part that awkwardly fits in the vise and needs support on the end. I've made due with 1-2-3 blocks, shims, and adjustable parallels, but these would have been so much nicer.

I am going to make another, less fancy, to use in the bandsaw vise for short work. Right now, I have several bolts of various lengths and a nut that gives me about 1/4" of adjustment.

[neanderman]

Thanks, that makes sense.