SBL ER40 collet chuck
(03-22-2012, 12:03 PM)EdAK Wrote: Bob,

Can you show us a picture of that squarish looking boring bar in picture number 7?

Nice collet chuck you made. What did you end up with for TIR?


Runout is maybe a few thou which is better than my 3 jaw chuck.
Here is the boring bar in different stages. It was just a piece of 1/2"x1 HR flat that fits in a special wide slot on my square block toolpost (last pic) And don't let anyone kid you that a square peg won't fit in a round hole because it fits just fine. And a small setscrew in the end to hold the bit. It really will hog the metal in backgear a good 3/16" cut per side...Bob

Attached Files Thumbnail(s)

.jpg   boring6.jpg (Size: 13.16 KB / Downloads: 74)
.jpg   fresh milled.jpg (Size: 22.44 KB / Downloads: 74)
.jpg   boring9.jpg (Size: 34.54 KB / Downloads: 74)
.jpg   boring bar.jpg (Size: 30.08 KB / Downloads: 74)
.jpg   boring7.jpg (Size: 20.51 KB / Downloads: 74)
Bob Wright
Metal Master Fab
Salem Ohio
Birthplace of the Silver and Deming drill bit.
5 Lathes, SBL Shaper, Lewis Mill, 7 drill presses, 5 welders...
Thanks given by:

Messages In This Thread
SBL ER40 collet chuck - by aametalmaster - 03-21-2012, 08:51 PM
RE: SBL ER40 collet chuck - by DaveH - 03-22-2012, 10:54 AM
RE: SBL ER40 collet chuck - by EdK - 03-22-2012, 12:03 PM
RE: SBL ER40 collet chuck - by aametalmaster - 03-22-2012, 07:20 PM
RE: SBL ER40 collet chuck - by doubleboost - 03-22-2012, 03:14 PM

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