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

See us at WESTEC!

Boss Tool Works will be at WESTEC 2015.

Visit us at booth 2719 at WESTEC 2015, September 15 - 17 at the Los Angeles Convention Center. Use our promo code '11148471' when you register at

See us at the Wisconsin Manufacturing & Technology Show!

Boss Tool Works will be at the Wisconsin Manufacturing & Technology Show October 6 - 8 at Wisconsin State Fair Park in Milwaukee. Visit us in booth 540.

Now Available

5C Wire EDM 72 Index

16C Wire EDM 72 Index

A1-5 blanks and adapter plates

A1-6 blanks and adapter plates


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.