Item Type: Tapping Collet_x000D_ Material: High speed steel_x000D_ Specification: M14_x000D_ Shank Diameter x Square Hole: Approx. 10.5 x 8mm / 0.4 x 0.3in_x000D_ Product Category: CNC Tool_x000D_ System: Japanese standard_x000D_ How to Use:_x000D_ 1. Press the knurled position of the handle body with the thumb of your left hand and pull it in the direction of the arrow_x000D_ 2. The handle body is aligned with the concave and convex keys of the chuck, install the chuck into the shank body_x000D_ 3. When disassembling the chuck, pinch the knurled key with your hand and pull the chuck back and it will be ejected automatically_x000D_ Install Steps:_x000D_ 1. Thumbs press down the spring_x000D_ 2. Put the tap into the chuck hole and release your thumb 1Come with good clamping strength, high accuracy and long service life 2Can be connected to drill chuck extension. Realize safe and fast replacement of tapping chuck 3Achieve install and disassembly of tapping chucks, taps have quick?change devices, saving time and effort, possess simple operation 4A torsion type of tapping chuck, can prevent tap from breaking, very durable 5Made of excellent high?speed steel material, widely used as CNC tool1 x Tapping Collet