Specification Brand : gernie BulletPoint1 : Available in four for choices: C10, C12, C16, C20 BulletPoint2 : Suitable for deep hole processing, which can solve the need for extended depth processing BulletPoint3 : The nuts can be tightened directly, with high rigidity and strong clamping force BulletPoint4 : Straight-handle extension handle made of chrome-molybdenum alloy steel material with high hardness BulletPoint5 : Straight Extension Rod: The straight extension rod equipped with the product can provide greater working distance and depth, allowing you to better complete deep hole processing without worrying about limitations of the working range. Color : As Shown ExternallyAssignedProductIdentifier : 7903686681200 IncludedComponents : No ItemName : Collet Chuck Holder Steel Straight Shank Milling Cutter Bar Chrome Molybdenum Alloy Rod Extension Bar Collet Chuck Holder C20 Holding Devices (gerniez3ggi76yds-11) ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 14 centimeters ItemPackageDimensions_Width : 3 centimeters ItemTypeKeyword : hand-screw-clamps Manufacturer : gernie Material : ABS ModelName : gerniez3ggi76yds-11 ModelNumber : gerniez3ggi76yds-11 PartNumber : gerniez3ggi76yds-11 PowerSourceType : ac/dc ProductDescription : 1. Straight-handle extension handle made of chrome-molybdenum alloy steel material with high hardness 2. Suitable for deep hole processing, which can solve the need for extended depth processing 3. The nuts can be tightened directly, with high rigidity and strong clamping force 4. Available in four for choices: C10, C12, C16, C20 5. Suitable for ER11A chuck, which is convenient to install