Bosch 1.5-13mm 1/2-inch x 20-Thread Keyed Chuck (a durable keyed chuck with a 13mm capacity and 1/2" x 20 thread), for use with various drills.

The Bosch 1.5-13mm 1/2-inch x 20-Thread Keyed Chuck is a keyed chuck or connection accessory designed to fit compatible drills, rotary hammers, or machine spindles. It supports correct accessory mounting, practical replacement, and reliable tool compatibility.

• Designed for compatible Bosch drills or hammers
• Supports secure accessory mounting or replacement
• Useful for service, conversion, or machine setup
• Practical original spare or connection accessory