Specification Brand : Accusize Industrial Tools BulletPoint1 : Item: 0223-0211; Collet Series: ER25; Collet Capacity: 0.04"-0.629"; Collet Nut Dia. (D): 1.65"; Collet Nut Style: Slotted; Shank Dia. (C): 1 in.; Shank Length (L1): 1.96 in.; OAL (L): 3.97" BulletPoint10 : Comprehensive Specifications: 1" Shank Dia., 1.96" Shank Length, and a total length of 3.97". Features a 1/2-13" thread for easy mounting. BulletPoint2 : Made of high-quality alloy steel. Hardened to HRC 56-60 BulletPoint3 : Hardened to HRC 56-60 BulletPoint4 : Precision ground BulletPoint5 : 0.0002" TIR or better BulletPoint6 : High-Quality Alloy Steel: Durable construction, ensuring longevity and resistance to wear, ideal for rigorous machining tasks. BulletPoint7 : Hardened to HRC 56-60: Offers enhanced strength and durability, maintaining precision under high stress operations. BulletPoint8 : Ultra-Precise: Ground to perfection with a maximum of 0.0002" Total Indicated Runout (TIR), for high-precision machining. BulletPoint9 : ER25 Collet Compatibility: Accommodates collets ranging from 0.04" to 0.629", versatile for various sizes of tooling. Capacity : 0.629 inches CompatibleDevices1 : Drilling Machine CompatibleDevices2 : Lathe CompatibleDevices3 : Milling Machine CompatibleDevices4 : Grinding Machine CutType1 : Rounded CutType2 : Taper EndCutType : Center ExternallyAssignedProductIdentifier1 : 663566024646 ExternallyAssignedProductIdentifier2 : 0663566024646 GpsrSafetyAttestation : 1 IncludedComponents : ER collet nut ItemName : Accusize Industrial Tools ER25 Collet Chuck Extension Rod, 1.96 in. Shank Length, 1 in. Straight Shank Alloy Steel, 0223-0211 ItemPackageDimensions_Height : 14.3 centimeters ItemPackageDimensions_Length : 4.9 centimeters ItemPackageDimensions_Width : 5 centimeters ItemShape : Round ItemTypeKeyword : tool-holders LockType : Independent Manufacturer : Accusize Co., Ltd. Material : Alloy Steel ModelNumber : 0223-0211 NumberOfFlutes : 4 NumberOfItems : 1 PartNumber : 0223-0211 PowerSourceType : ac/dc 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. Unique design feature in the flange to minimize the off-balance nature of CAT 40 taper specification. On the shoulder under the flange, a side is mill flat to compensate the weight of the metal chips lost from forming the spherical hole in the flange. This design allows the left side and right side of the holder to achieve 50-50 perfect weight distribution in its upright position, like the position inside a machine spindle. Symmetrical design in evenly weight distribution will minimize centrifugal force in high speed spinning and thus maximize the holder's ability to hold the cutting tool concentric to spindle rotation. 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. The maximum torque is laser marked on the ER collet nut face to take the guess game out of the way to ensure proper amount of force should be applied while tightening. Innovative coating process significantly increases the clamping force by 75% compared to standard ER collet nut. More gripping force provides better rigidity and reduces the possibility of losing grip on the round shank which lead to expensive damage on cutting tools and work piece material. ProductSiteLaunchDate : 2021-06-04T15:38:37.398Z Size : ER25 Holder; 1.96" Shk Length. Style : Slotted SupplierDeclaredDgHzRegulation1 : not_applicable SupplierDeclaredDgHzRegulation2 : not_applicable SupplierDeclaredDgHzRegulation3 : not_applicable SupplierDeclaredDgHzRegulation4 : not_applicable SupplierDeclaredDgHzRegulation5 : not_applicable ToleranceHeld : Precision UnspscCode : 27112800