Features The three-jaw chuck is more stable and difficult to fall off. M10 shaft sleeve can withstand more twisting. Double flange bearings work easier. The synchronous wheel is firmly locked to block the position of the sliding block. High precision, works more commonly and more stable. Specification: Item Type: Non-powered pin Drilling chuck: B12 Ring: M10 Connecting Rod: M10 Accuracy: 0 mm Matching bearing: F6800Z Synchronous wheel: XL20 tooth Package list: 1 x Drill Clamp 1 x Drill Clamp Wrench 2 x Bearing 1 x Black Washer 1 x Sliding Block 1 x Timing Wheel 1 x Hex Wrench 1 x Connecting Rod 2 x Large Wrench 2 x Black Screw 1 x Shaft Sleeve (2 x Chuck Sheet/1 x Sleeve) Note: Please note that the new type and old type of this product will be sent randomly, and make sure you don't mind before ordering. Package List 1 x Drill Clamp 1 x Drill Clamp Key 2 x Bearing 1 x Black Washer 1 x Slide Block 1 x Synchronizing Wheel 1 x Hex Wrench 1 x Connecting Rod 2 x Large Wrench 2 x Black Screw 1 x Shaft Sleeve(2 x Chuck Sheet / 1 x Sleeve)