Specification Brand : SHARK TOOLS BulletPoint : TE Connectivity 770854-1 BulletPoint1 : Taper-to-bore runout < 0.0002". BulletPoint2 : AD coolant thru the spindle. BulletPoint3 : Taper shank ground to AT3 accuracy (or better). BulletPoint4 : CAT 40 Draw bar threads: 5/8"-11 BulletPoint5 : Shoulder to Head L1: 0.988", Shoulder to End L2: 1.264" ConnectorType : Crimp ExteriorFinish : Nickel ExternallyAssignedProductIdentifier : 7427759312025 ExternallyAssignedProductIdentifier1 : 0000120256318 ExternallyAssignedProductIdentifier2 : 000120256318 FinishType : Polished IncludedComponents : Knob ItemDisplayWeight : 0.6 kilograms ItemName : SHARK TOOLS 3/4" CAT 40 Premium End Mill Holder - 3" Projection ItemPackageDimensions_Height : 2 inches ItemPackageDimensions_Length : 6 inches ItemPackageDimensions_Width : 4 inches ItemPackageQuantity : 50 ItemTypeKeyword : tool-holders Manufacturer : SHARK TOOLS Material : SNCM420 (SAE 4320) alloy steel ModelNumber : 202-5931-5 NumberOfItems : 1 PartNumber : 67-814-483 ProductDescription : Balanced to G6.3 15,000 RPM to save spindle bearing life FEATURES Taper-to-bore runout <0.0002". Bore tolerance: H6AD coolant thru the spindle. Taper shank ground to AT3 accuracy (or better). Taper manufactured in accordance with ANSI B5.50 / ISO 7388 specifications. CAT 40 Draw bar threads: 5/8"-11 Includes Balancing certificate. PRODUCT SPECIFICATIONS Brand SHARK TOOLS Size 3/4" Taper CAT 40 Projection 3.00" Head Diameter 2.00" Model # ST40EM075300B Arbor Hole Diameter 3/4" Capacity 3/4" Depth of End Mill Insertion 2.40" Drawbar Thread 5/8"-11 Hole Diameter 3/4" Key Size 5/16" Length From Projection Face To Center of First Set Screw 1" Nose Diameter 2.00" Set Screw Size 5/8"-18 Style End Mill Holder Type CAT End Mill Holder Weight 2.64 lbs. Country of Origin Import ProductDescription1 : H6 arbor tolerance to improve cutter chattering and overall cutting tool life ProductDescription2 : T.I.R. 0.0004" measured from NMTB 30 taper to face and arbor ProductDescription3 : Made from alloy steel harden to 54-60 HRc ProductDescription4 : Taper ground to AT3 or better accuracy standard for maximum contact with spindle. This tool holder has used Stotz Air/Electronic Gaging for production and finish inspection. Stotz has been chosen by major aircraft companies as the best and most consistent gaging for tool holder shanks ProductDescription5 : All critical surface are precision ground, Each holder comes with a lab certificate on its taper accuracy and runout measurement ProductSiteLaunchDate : 2017-07-14T17:29:19.602Z Style : Knobs SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 50