Specification Brand : Tegara BulletPoint1 : Bore Diameter: 1/4", Nose Diameter: 0.88" BulletPoint2 : Drawbar Thread Size: M16x2.0, Shank Size: BT40 BulletPoint3 : Gage Length: 2.50" BulletPoint4 : TIR (in): 0.0002 BulletPoint5 : Max RPM Balanced to: G2.5 20,000 CutType : Taper ItemName : Tegara BT40 1/4 in x 2.50 in End Mill Tool Holder 2 pcs 202-7144G-2 S[ ItemPackageDimensions_Height : 30.988 centimeters ItemPackageDimensions_Length : 12.0904 centimeters ItemPackageDimensions_Width : 16.3068 centimeters ItemShape : Round ItemTypeKeyword : tool-holders Manufacturer : Shars Tool Material : Alloy Steel NumberOfFlutes : 2 PartNumber : 202-7144G-2 ProductDescription : Tool holder is balanced to G2.5 20,000 RPM on a HAIMER Tool Dynamic Balancing System from Germany. Balanced tool holder minimizes the centrifugal forces which minimize the stress on spindle bearing, minimize vibration and maximize the cutting tool's life cycle and greatly improve surface finish. To achieve AT3 or better taper contact as an industry standard, our taper surface are precision ground on Shigiya CNC grinder from Japan. We are not satisfied with just meeting the industry standard, the surface roughness on the taper is maintained to mirror finish. Flange and V-groove are precision ground to ensure reliable tool change. Spindle Thru coolant capability. ProductSiteLaunchDate : 2019-07-29T07:00:00.000Z SupplierDeclaredDgHzRegulation : not_applicable ToleranceHeld : Precision