Drill bit Dedra WP2246 — diameter 22 mm, working length 400 mm, for concrete/brick/stone/aerated concrete, 1 pc

Dedra WP2246 drill bit with a 22 mm diameter and a 400 mm working length is designed for drilling deep holes in concrete, brick, natural stone and aerated concrete. This single-piece SDS-plus compatible bit (sold as one unit) is intended for use with percussion and rotary-percussion drills to create anchor holes, through-holes and fixing points for rebar and fasteners in construction and renovation tasks.

Advantages

The long 400 mm working length allows access to deep anchoring positions without extensions. The 22 mm cutting diameter provides a standard size for many anchors and fixings. The bit is optimized for percussion action to maintain efficient material removal when working in hard masonry and aerated blocks, and its design helps stabilise drilling performance during rotary-percussion operation.

Suitable for

• Drilling anchor holes in concrete and brick
• Creating through-holes for pipes or conduits in masonry
• Preparing fixing points for rebar, bolts and chemical anchors
• Drilling into aerated concrete blocks for light to medium load fixings

Key specifications

• Diameter: 22 mm
• Working length: 400 mm
• Compatible materials: concrete, brick, natural stone, aerated concrete
• Drilling modes: percussion and rotary-percussion
• Quantity in package: 1 piece

How to use

Install the bit securely in the drill chuck or SDS adapter according to the drill manufacturer’s instructions. Mark the drilling point and start at low speed to create a guide notch, then increase speed and apply steady pressure while allowing the percussion action to do the work. Clear dust from the hole periodically to maintain drilling efficiency and cooling. When drilling deep holes, withdraw the bit occasionally to remove debris. Use appropriate personal protective equipment such as safety glasses, hearing protection and dust mask.

Usage recommendations

Use the Dedra WP2246 drill bit with a compatible SDS-plus hammer drill set to percussion or rotary-percussion mode. Select anchor sizes that match the 22 mm diameter, and follow anchor manufacturer instructions for hole depth and cleaning. For best results in dense concrete, reduce feed pressure and clear dust frequently to prevent bit overheating and to prolong service life.