Faithfull FAICHUCK12K 13mm Keyless Chuck 1/2 x 20 UNFThis Faithfull keyless chuck is designed for use with mains powered, cordless drills and drill drivers. Its all-steel construction offers durability, making it suitable for professional hammer drills and impact drilling applications.Features Keyless operation for quick and easy bit changes All-steel construction for a long working life Non-slip locking system for impact drilling and holesaw applicationsSpecifications Brand: Faithfull MPN: FAICHUCK12K EAN: 5023969252148 Thread: 1/2in x 20 UNF Jaw locking system for hammer use