Specification Brand : RedLine Tools BulletPoint1 : Made in USA with American 8620 Steel BulletPoint2 : Collet chucks balanced to G2.5 @ 18,000 rpm BulletPoint3 : For Coolant-Through Machines BulletPoint4 : Exceed ANSI standards by a minimum of 35% BulletPoint5 : Virtually no play and tool holder wobble ExternallyAssignedProductIdentifier1 : 0649910372984 ExternallyAssignedProductIdentifier2 : 649910372984 ItemName : CNC Milling Tool Holder Basic Package for Non-Coolant Through Machines ItemPackageQuantity : 1 ItemTypeKeyword : tool-holders Manufacturer : RedLine Tools Material : Alloy Steel ModelNumber : MC002491 NumberOfItems : 1 PartNumber : RC4PKG02 ProductDescription : Basic tooling package for Non-coolant through machines has been created to include all of the tools you'll need to get your machine going. Includes: 1-CAT40 1/4" Endmill Holder, 1-CAT40 3/8" Endmill Holder, 1-CAT40 1/2" Endmill Holder, 1-CAT40 5/8" Endmill Holder, 1-CAT40 3/4" Endmill Holder, 1-CAT40 1" Endmill Holder, 3-CAT40 ER20 Collet Chucks, 1-ER20 7 Piece Collet Chuck Set (1/8 - 1/2), 1-ER20 Collet Chuck Wrench, 1-CAT40 3/4" Facemill Holder, 10-Haas CAT40 Retention Knobs. NOTE: Comes with HAAS style CAT40 retention knobs standard. These can be substituted to a style that will work on your machine. Just add a note during checkout requesting a different style. ProductSiteLaunchDate : 2018-12-03T08:00:00.000Z Size : S32S-MCLNR12 SupplierDeclaredDgHzRegulation : unknown