Pair of Kant Twist for $5..
.. at a local flea market !
Had been looking at them just the night before online and was going to order a set and then I came across a lone tool table among dozens of perfume/fake Gucci/bad clothing and found these…
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Viewing 9 replies - 1 through 9 (of 9 total)
Mike, I’m just thankful that I don’t have to mill D2 or S7 or any Crucible Metal products. I have a tool holder (kennemetal) that I have to cut down as I like oversized tooling in my lathe so that I get the benefit of larger and stiffer tooling (hahahaha, he said ‘stiff tool’). but it won’t fit in my tool holder, so I have to take off a little bit off the shank… tried to use a HSS mill (5/8″ double ended bit) and it just dulled. Blah. Now I have to order a carbide bit just to cut down this one tool shank. AND get the 5/8″ mill sharpened. It’s older than I am. It’s one of the reasons I went so badly overbudget on the tool order this morning. Damn carbide is so expensive. But, the diamond grinding wheel should really help in the sharpening dept… at $90 for the wheel, it better. I’m dedicating one of the grinders to that wheel and making all the sharpending jigs to fit that one machine.
walt
Great find YN!
I have a shop full of them. But none of them were found at that price!!!
I know what you mean Walt. I have the same problem with carbide end mills. And no sharpening service anywhere around here.
Mike
Thanks, Lang. Interesting page. I have a Pit Bull sharpener which is still unmolested and in it’s original box. Got it from Sears years ago and threw it into the pile of stuff I have not had time to get to. I was going to mount it on a grinding wheel but have not had the chance… I’ll go look for it tonight.
Interesting, I had reached some of the same conclusions regarding angles of relief and blending on the flutes. Over the years I had long ago decided I could not consistently get the same relief angles each time, so I’ve been using a modified 2 facet system with good results. These guys went with a 4 facet system to account for more control over relief angle. Makes a lot of sense. I’ll go over it in more detail a little later. Also what they say about heat is one of the reasons I’m going with the expensive diamond wheel, it doesn’t heat the HSS to anywhere near the same temps due to how fast it cuts.
Adam, two reasons I don’t use the sharpening shops: 1) they are expensive when you have a drawer full of bits. 2) Any good machinist should be ashamed to be so skill-less that he cannot figure out how to sharpen his own drills. For something like a milling cutter, I can see where it may take specialty equipment or jigs to get all the flutes exactly the same; but for drills, I don’t want to throw in the towel so quickly and admit that I’d never cut it in a machine shop. And actually my drills have been working very well for me, after I made some very rudimentary jigs to use to help keep the angles correct.
walt
aloha,
walt
aloha,
walt
Take them to a sharpening shop. They will fix you up.
aloha,
walt
aloha,
walt
Maybe of some interest Walt:
That is a cool find. I been looking for the same thing… ugh, tooling costs so much these days. I just called in an order to enco, figured it would be $200 or so… ended up at twice that because I had to break down and order the diamond grinding wheel. No more grinding lathe bits using Alox wheels for this boy. I also found an old machine shop going out of business and he had a tray full of old, huge drill bits… all of them MT 2 and MT3. I have a large Albrecht type keyless chuck on my lathe to hold drills, but figured if I eliminate the chuck and just go straight into the tailstock it should improve rigidity. Trouble is, most of the drills have been badly ground on the tips by idiots so I have to resharpen all of them carefully and make sure they are ground symmetrically. I can do a decent job by hand, but for these large and expensive drills (most between 1″ and 2″ diameter), I want to do a better job. I am in the process of making a jig to do this. Anyone with suggestions?
aloha,
walt
aloha,
walt
How much perfume and bad clothing did you get?
Cool..That’s one helluva buy!! U done GOOD!!!
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Yep, it cost a lot more, but carbide is just about all I use any more. It cuts so much faster,and I’m basically lazy and Impatient 😀 !