Keyed drill chuck Bosch 2 609 255 708, capacity 1.5 mm–13 mm, for drills with adapter

Keyed drill chuck Bosch 2 609 255 708 is a replaceable keyed chuck with a clamping capacity of 1.5 mm–13 mm. The chuck is supplied with an adapter for use with SDS‑Plus tool holders, allowing installation on compatible rotary and hammer drills. It is intended to provide secure keyed tightening of standard round‑shank and reduced‑shank drill bits for common drilling tasks in wood, metal and plastic.

Advantages

This keyed drill chuck offers a wide clamping range from 1.5 mm to 13 mm and supports secure fastening using a key for reliable bit retention under load. The included adapter enables compatibility with SDS‑Plus spindles, simplifying replacement of worn chucks and expanding the range of drills that can accept standard round‑shank bits. The construction is designed for straightforward installation and stable operation during rotary and light hammer drilling when a keyed chuck is required.

Suitable for

• Drilling wood with standard twist drills and brad-point bits
• Drilling metal using high‑speed steel (HSS) bits
• Drilling plastic and composite materials
• Work that requires secure keyed tightening for high‑torque applications

Key specifications

• Clamping capacity: 1.5 mm – 13 mm
• Chuck type: keyed three‑jaw chuck
• Compatibility: adapter for SDS‑Plus spindles
• Suitable drill bit shank types: round shank and reduced shank

How to use

Fit the included adapter to the SDS‑Plus spindle of a compatible drill according to the drill manufacturer's instructions, then mount the chuck onto the adapter. Insert the desired drill bit into the chuck jaws, place the key into the geared socket, and tighten clockwise until the bit is firmly clamped. Always check that the bit is centered and secure before starting the tool. To remove or change bits, loosen the chuck with the key by turning counterclockwise.

Usage recommendations

Use the keyed chuck only with drills rated for the intended application and avoid heavy percussive use beyond the drill's specification. Regularly inspect the chuck jaws and adapter for wear or damage and keep the chuck clean and lightly lubricated to maintain reliable clamping performance.