Drill chuck with a self-tightening mechanism and SDS-Plus adapter that ensures perfect centering and optimal power transfer when using a drill or hammer. Guarantees safe and stable retention of drill bits, even under heavy loads. The use of a key increases the clamping force, reducing the risk of tool slippage during operation.

• Thread size: 1/2" (12.7 mm) 20UNF
• Tool holder size: 1.5-13 mm
• Material: high-quality carbon steel, very durable and resistant to mechanical wear
• Adapter material: durable Cr40 steel
• Excellent working centering and stable drill bit retention
• Includes drill chuck key