Drill bit DeWalt DT9541-QZ, length 210 mm, single piece

DeWalt DT9541-QZ drill bit, 210 mm length, single piece — a long-reach masonry drill bit designed for professional and DIY projects that require deep, straight holes. Constructed with a hardened steel body and an optimized mounting shank, this drill bit delivers reliable grip in the chuck and effective power transmission for use with compatible rotary hammer or hammer drills. The two-cutter head design with individual cutting tips provides efficient material removal and improved drilling speed when working in masonry, concrete, stone and brick.

Advantages

The hardened steel construction reduces breakage and increases durability during repeated use. An optimized mounting shank ensures a secure fit and better transfer of torque from the drill, minimising slippage. The solid two-cutter head design, complemented by two separate cutting tips, produces fast, consistent drilling performance and clean plug, anchor or clearance holes in masonry substrates. The 210 mm length enables long-reach drilling where standard bits are too short.

Suitable for

• Drilling plug and anchor holes in concrete and masonry
• Creating clearance holes in brick, block and stone
• Long-reach drilling where a 210 mm bit is required
• Use with compatible rotary hammer or hammer drills for construction and repair tasks

Key specifications

• Overall length: 210 mm
• Material: hardened steel body
• Head type: solid two-cutter head with two individual cutting tips
• Shank: optimized mounting shank for improved grip and power transmission
• Pack: single piece

How to use

Fit the drill bit securely into a compatible drill chuck or SDS holder according to the drill manufacturer’s instructions. Mark the drilling location and start at low speed to position the bit, then increase speed and apply steady, moderate pressure while allowing the bit to cut. For deeper holes, periodically withdraw the bit to clear dust and debris and maintain effective cutting. Use appropriate drill settings (rotary hammer or hammer mode where applicable) and wear suitable personal protective equipment such as safety glasses, gloves and a dust mask when drilling masonry.

Usage recommendations

For longest service life, avoid excessive lateral force and overheating; clear chips frequently during deep drilling and use a drill with compatible power and speed rated for masonry bits. Select the appropriate drill mode and compatible chuck or holder for secure mounting.