The quick-action drill chuck offers convenient handling without a key for maximum operating comfort. It allows easy and quick clamping with both hands without a key for secure fastening of cylinder or hexagonal shank drills. Two-sleeve quick-action drill chucks are available with a variety of shanks (1/2"" - 20, 3/8""- 24, 5/8"" -16, 1/4"" external hex shank, B16 and SDS plus) and are compatible with most popular drill bits without spindle lock. For information on impact resistance or suitability for counterclockwise rotation, please refer to the technical data. Clamping range mm: 1,010.0, Receptacle, range: 1/2"" 20, Figure, no.: 8, Drill chuck, type: Keyless drill chuck