Dunham Tool manufactures a range of manual expanding mandrels (miser mandrel) with diameter capacities of 5/16" to 6". This expanding mandrel can be used with standard collets, vises, jaw chucks and many other special fixtures.

Expanding Mandrels. Standard Expanding Mandrels Hard Expanding Mandrels Expanding Mandrel Replacement Parts. Other. New Products Heavy Duty Chuck Stops Collet Stops & Collet Wrenches Vacuum Flap Seal Shop Tools Clerance & Overstock Items. About Us. Home; Collets. Expanding Collets. 5C Expanding. Custom & Specialty Sizes; Stainless Steel;

Mandrel Length - 2.000" Dunham Tool Company. 807 E. Main Street P.O. Box 89 Clarinda, IA 51632. Contact Us. Phone: (712) 542-1908 (712) 542-1908 Fax: (712) 542-4902. Contact Us. Stay Connected. Get New Product Notifications. Receive text or …

You may want to turn the mandrel to .001” to .002” larger than the maximum part size to start out. Example : A part with an I.D. of 1” plus or minus .002”, machine mandrel to 1.003” or

Standard Expanding Mandrels Hard Expanding Mandrels Expanding Mandrel Replacement Parts Other New Products Heavy Duty Chuck Stops Collet Stops & Collet Wrenches Vacuum Flap Seal Shop Tools Clerance & Overstock Items

Rigid one piece body / mandrel construction; Actuated by machine draw tube or collet fixture; Available from 1/4” to 6” diameter; Available from 1” to 3” expandable length; Machinable by customer to desired diameter; No draw back gives positive end length; Special expanding collet configurations available; Internal collet chucking ...

Expanding Mandrels. Standard Expanding Mandrels Hard Expanding Mandrels Expanding Mandrel Replacement Parts. Other. New Products Heavy Duty Chuck Stops Collet Stops & Collet Wrenches Vacuum Flap Seal Shop Tools Clerance & Overstock Items. About Us. Home; Collets. Expanding Collets. 5C Expanding. Custom & Specialty Sizes; Stainless Steel;

Since 1958 the Dunham Tool Company has manufactured workholding and machine tools which include, collets, collet chucks, high-speed spindles, expanding mandrels, collet closers, lathe bar pullers, spindle headstocks, and precision lathes.

Expanding Mandrels. Expanding Mandrel Instructions 2024 . Resource Center RSS. Dunham Tool Company. 807 E. Main Street P.O. Box 89 Clarinda, IA 51632. Contact Us. Phone: (712) 542-1908 (712) 542-1908 Fax: (712) 542-4902. Contact …