The Mill Boss
Boss Tool Works Manufacturers of quality workholding and machine tool accessories

5C, 16C & 3J Collet Chucks & Fixtures, 5 Axis Workholding, Rotary Table & Wire EDM Workholding Products
Vise Jaws, Keys, & Fixture Clamps, Mill Stops and THE MILL BOSS

Boss Tool Works
1288 Hickory Street
Pewaukee, Wisconsin 53072
262-691-8938 Fax

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Latest news

Coming Soon

HRT 5 and HRT 6 face plate blanks for Haas rotaries.

Also, HRT 5 and HRT 6 face plate adapters. Now, mount Boss Tool Works, 5C Rotary Table Workblock, 16C Rotary Table Workblock, and the all new No. 4 5c Multi-axis Workblock to a Haas HRT 5 and HRT 6 rotary table.


How to Install a Collet

Boss Tool Work's own Randy Bernhardt has put together a clear 4-step guide on how to install a collet into a Boss Tool Works workblock.

Now Available

CAD Models for 5C, 16C and 3J Workblocks   

Call for Needed CAD model(s) 

No. 4 16C Workblock

5C Wire EDM Collet

5C Nylon Collet