Drill bit DeWalt DT9526-QZ 7 mm diameter, 210 mm length, for rotary hammer, 1 pc

DeWalt DT9526-QZ drill bit, 7 mm diameter and 210 mm working length, is designed for use with SDS-plus rotary hammers. The bit features the Extreme2 carbide tip geometry and an optimized flute profile to improve chip evacuation and maintain cutting performance when drilling into concrete, brick and other masonry materials. Supplied as a single piece, this drill bit is intended for small-diameter, precision hole-making in construction, renovation and installation tasks.

Advantages

The Extreme2 high-grade carbide tip improves penetration and extends service life compared with standard tips. An optimized flute design helps clear debris efficiently, reducing friction and heat buildup during drilling. The hardened steel shank and body increase resistance to bending and breakage under hammer action. Compatibility with SDS-plus chucks ensures secure fitment and reliable power transfer from compatible rotary hammers.

Suitable for

• Drilling anchor and fastener holes in concrete and brick
• Installing electrical boxes and conduit in masonry walls
• Small-diameter precision holes for renovation and repair work
• Creating pilot holes for anchors and dowels in stone and masonry

Key specifications

• Diameter: 7 mm
• Working length: 210 mm
• Tip: Extreme2 carbide geometry with 140° profile
• Shank type: SDS-plus for rotary hammers
• Body material: hardened steel with carbide tip
• Suitable materials: concrete, brick, masonry, stone
• Pack quantity: 1 piece

How to use

Install the drill bit into the SDS-plus chuck of a compatible rotary hammer until it locks securely. Select the hammer-drill mode appropriate for masonry. Position the tip on the marked drilling point and start at low speed to establish the hole, then apply steady pressure and allow the tool to do the work. Periodically withdraw the bit to clear accumulated dust and debris from the hole, maintaining efficient chip removal and reducing heat. For best results, use appropriate personal protective equipment and follow the rotary hammer manufacturer's operating instructions.

Usage recommendations

Use this 7 mm drill bit for small, precise holes in concrete and masonry. Avoid excessive side load or twisting forces, and clear debris regularly during extended drilling to maximize tip life. Match drill speed and hammer settings to material hardness and follow safety guidelines for rotary hammer operation.