© 1999-2019 by Craftsman Industries, Inc.

ER COLLET EXTENSIONS &

"STUBBY" CHUCKS

 

Craftsman Industries, Inc. offers a variety of cost-effective products designed for machining with ER collets.  Select from the following ER products:

 

  • Straight Shank Collet Chuck Extensions up to 16" in length

  • Straight Shank "STUBBY" Collet Chucks with shorter shank lengths

  • Replacement lock nuts for all Craftsman Industries collet chucks

  • ER Collets (ER11, ER16, ER20, ER25, ER32)

  • Open-end hex. wrenches for tightening lock nuts (no special wrench needed)

Double-Ended

ER Chucks

(see below)

Contact your regular tooling supplier for pricing and ordering information or click on our distributor locator form to locate a distributor in your area or distributors selling online.

Scroll through our photo gallery of ER Collet Chucks

All back-up screws have 1/8" hex. sockets.  Solid shank items have no thru-hole or backup screw.

 

*Extra-Long chucks (8"+) are limited supply, please verify availability before ordering. Other lengths/sizes may be available (up to 20" length).  Call/email for details.

 

DO NOT OVER-TIGHTEN LOCK NUT, ALWAYS USE BACKUP SCREW

 

  • Manufactured in USA from high grade, heat-treated alloy steel

  • Black Oxide finish for corrosion prevention

  • Wrench flats milled onto shank surface

  • Tighten lock nut with a standard open-end wrench (no special wrench needed, unlike other brands)

SWISS-STYLE DOUBLE-END ER CHUCKS

ER11 - ER16 - ER20

 

ER lock nuts interchangeable with ER "mini" lock nuts of other manufacturers. Lock nut tightened with any standard open end wrench (no cup wrench needed). Open end wrenches also available for purchase.

AVAILABLE ACCESSORIES

Open-End Check Nut Hex. Wrenches in Stock

(Part Numbers above)

OTHER PRODUCTS

DA300

DA200

DA100

DA180

 

"STUBBY" LENGTHS

 

EXTENSIONS & EXTRA LONG CHUCKS UP

TO 16" OAL

 

LOCK NUTS, WRENCHES

& COLLETS AVAILABLE

3/4" Shank "STUBBY" End Mill Holders also available in limited supply.