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Collet chuck product catalog is available. 

Request your free copy today!

Craftsman Industries, Inc. offers a variety of products designed for machining with ER collets, including:

• Straight Shank Collet Chuck Extensions (up to 16" OAL)

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

• Straight Shank Double-Ended Collet Chucks NEW!

• Replacement lock nuts for all Craftsman Industries collet chucks

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

• Open-end hex. wrenches for tightening lock nuts

ATTN: Swiss Screw Machine Users - Double-Ended Collet Chucks now available. Details below.

Straight Shank Collet Chucks

Click for: Collet-lock nut assembly instructions to ensure proper insertion of tool and collet into the chuck

Ready to buy? 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 on the Internet.

Open-end hex wrenches  available for all lock nuts (Part Numbers Listed Below)

ER PRECISION COLLET CHUCK EXTENSIONS

Smaller diameter lock nut than most brands 

make these ideal for machining hard-to-reach surfaces

For use on CNC Mills

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

• Black Oxide finish for corrosion prevention

• Comes equipped with inside back-up screw and Lock Nut

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

**Want to see what a particular holder looks like?  Just click a part number to see the collet chuck close-up**

TABLE OF DIMENSIONS

Click on part number to see a picture of the holder

All back-up screws have 1/8" hex. socket

*Solid Shank items have no thru-hole or backup screw

Extra-long chucks (8"+) are limited supply.  Please check availability before ordering

ER lock nuts interchangeable with ER "mini" lock nuts of other manufacturers. Lock nut tightened with any standard open end wrench (no special wrench needed). Open end wrenches in stock.

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

“STUBBY” ER COLLET CHUCKS

Useful on chuckers (manual or CNC), screw machines, and CNC lathes

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

• Black Oxide finish for corrosion prevention

• Comes equipped with inside back-up screw and Lock Nut

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

                         TABLE OF DIMENSIONS

Click on part number to see a picture of the holder

All back-up screws have 1/8" hex socket

NEW! SWISS-TYPE DOUBLE ENDED COLLET CHUCKS

• 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)

 

Chuck  Ordering  Number	Shank  Diameter	Overall  Length	ER  Collet  Series	Lock Nut  Ordering Number
DE51-ER20/20-1000	1.000"	5.1"	ER20/ER20	LN-ER20
DE50-ER20/16-1000	1.000"	5.0"	ER20/ER16	LN-ER20/LN-ER16
DE50-ER16/16-1000	1.000"	5.0"	ER16/ER16	LN-ER16
DE45-ER16/16-0750	0.750"	4.5"	ER16/ER16	LN-ER16
DE44-ER16/11-0750	0.750"	4.4"	ER16/ER11	LN-ER16/LN-ER11
DE43-ER11/11-0750	0.750"	4.3"	ER11/ER11	LN-ER11

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.

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

ER Spring Collets

website questions?   e-mail Craftsman Industries, Inc.

250 Coroneos Drive :: Henderson, Nevada 89011

(702) 566-5808 :: Fax: (702) 566-5806

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Revised: February 10, 2010

Information provided on this site deemed reliable but not guaranteed.