Features: brand new and high quality Clamping Range: 1.5-10 mm. The chuck can be adjusted. High-strength Alloy Material: Precisely processed and formed to be strong and durable, with for stronger 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 Precision Thread: precise thread workmanship, thick material not easy to slip, M10thread, easy to install, 100 type angle grinder. Angle 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 Carbide 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 Package Includes: 1PC Angle Grinder Drill Chuck 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 angle grinder to electric drill 2. Before installing the conversion for head, please install the angle 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 minute to confirm that the adapter and drill bit have been installed and the angle grinder is operating normally.