This 1/2" Keyless Drill Chuck is suitable for both home DIY and professional use. Comes complete with SDS Adaptor. Specifications: Metal Keyless Drill Chuck. 13mm - 1/2" 20UNF. Metal body with nylon sleeve. For rotary and percussion drills and drill drivers. Set to hammer stop when using with hammer drills. Keyless operation. Capacity 2.0mm to 13mm. .
eBay