Self-locking drill chuck with SDS-Plus adapter with key ensures perfect drilling centrality and optimal force transmission when working with a drill or hammer drill. It guarantees a secure, stable grip on drill bits, even under heavy loads. The use of the key increases the clamping force, reducing the risk of the tool slipping during work.

• mounting: 1/2" (12.7 mm) 20UNF thread
• 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 centrality of work and stable drill holding
• drill key included in the set