Features: brand new and high quality Clamping : 1.5-10 mm. The chuck can be adjusted. High-strength Alloy Material: Precisely processed and formed to be strong and durable, with for force. The three-jaw Chuck Clamps Firmly: with different drills/hole openers, drill holes and reams of stone/wood/metal. Three-jaw chuck is suitable for round shank, for triangle shank and hexagon shank. Real Material Thread: precise thread workmanship, thick material not easy to slip, M10thread, easy to install, 100 type grinder. grinders are suitable for cutting, grinding and brushing metals and stones. Do not use water during operation. A guide plate must be used when cutting the stone. Specifications: Material: Cemented Product Dimension: approx. Electric drill chuck: 60x33mm/ 2.36x1.30 inches approx. for Key wrench: length 55mm/ 2.17 inches Net Weight: 150g/ 0.33 lbs Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 1. This product is only suitable for the use of Type 100 grinder to electric drill 2. Before installing the conversion for head, please install the grinder gasket Precautions 3. When installing a drill or a hole opener, you must first tighten it with a for key 4. After the installation is complete, please run idling for 1 to confirm that the adapter and drill bit have been installed and the grinder is operating normally. Package includes: 1PC Grinder Drill Chuck Grinder Electric Drill Conversion Collets Conversion for Head for Grinder Woodworking Tool AccessoriesElectric Grinding Chuck Multi-functional Three-jaw Mini Drill Chuck Adapter Clamping 1.5-10 mm M10ThreadGrinder Attachments Drill Adapter Clamping 1.5-10 mm M10Thread