Maximum Ease of Use - The Keyless Drill Chuck offers comfortable, keyless operation for maximum ease of use. It allows for easy and fast two-handed clamping without using a key and securely fastens cylindrical or hex shank drill bits. 2-sleeved keyless drill chucks are available with different mounts (1/2" - 20, 3/8"- 24, 5/8" -16, 1/4" external hex shank, B16, and SDS plus) and are compatible with most common drills without spindle lock. Check technical details for information regarding impact resistance or suitability for anti-clockwise rotation. Features and Benefits • Comfortable, Keyless Two-Hand-Operated Clamping for Maximum Ease of Use • Keyless Drill Chuck offers comfortable, keyless operation for maximum ease of use • Easy and fast two-handed clamping without using a key Specifications Chuck capacity: 2.0–13.0mm Mount, range: 1/2" – 20 Illustration, No.: 3 Drill chuck, type: Keyless chuck