Bosch 13mm 1/2" 20 UNF Hammer Drill Keyless Chuck 2 - 13mm

The Bosch 13mm Keyless Chuck is a replacement drill chuck designed for fast, tool-free bit changes on compatible corded drills. Fitted with a 1/2" – 20 UNF mount, it accepts drill bits from 2.0mm up to 13.0mm in diameter, covering the full range of cylindrical and hex shank bits used across general drilling applications.

The single-sleeve keyless design allows for quick one-handed tightening and release, removing the need for a chuck key. This makes it well suited to busy on-site use where speed and efficiency matter — ideal for carpenters, electricians, plumbers, and general contractors who need reliable, repeatable bit changes throughout the working day.

Compatible with most common drills featuring a spindle lock, this chuck offers a practical upgrade or direct replacement on suitable machines. It is available in both 1/2" – 20 and 3/8" – 24 mount configurations, so it's worth confirming your drill's spindle thread before ordering. For specific information on impact resistance or suitability for anti-clockwise rotation, refer to the technical details.

Features and Benefits:
• Keyless single-sleeve design for fast, one-handed bit changes without a chuck key
• Accepts cylindrical and hex shank drill bits from 2.0mm to 13.0mm
• 1/2" – 20 UNF mount compatible with most common drills with spindle lock
• Suitable as an upgrade or direct replacement on compatible machines

Specifications:
Chuck type: Keyless chuck
Chuck capacity: 2.0–13.0mm
Mount: 1/2" – 20 UNF
Net weight: 0.255kg