Drill bit DeWALT DT8914-QZ 6 mm diameter 210 mm length

The DeWALT DT8914-QZ 6 mm diameter, 210 mm length drill bit is intended for use with rotary hammers and SDS-plus compatible hammer drills. Designed to provide accurate drilling in masonry and concrete, this single-piece bit combines a compact 6 mm cutting profile with extended 210 mm length for access to deeper holes. The bit’s geometry and hardened cutting edges are suited to repeated hammer drilling cycles while maintaining drilling speed and hole quality.

Advantages

This DeWALT drill bit offers consistent hole sizing and straight drilling thanks to its precise 6 mm diameter. The 210 mm length enables drilling through thick materials or reaching recessed fixing points without changing to extensions. Engineered for rotary hammer use, the bit maintains cutting efficiency and heat resistance during continuous operation. Its solid construction reduces breakage risk and supports professional and home repair tasks that require reliable masonry drilling performance.

Suitable for

• Drilling holes in concrete and masonry for anchors and dowels
• Installing fasteners through brick, block, and stone
• Accessing deep fixing points or passing through thick walls
• General renovation, construction, and professional fitting work

Key specifications

• Diameter: 6 mm
• Overall length: 210 mm
• Intended tool type: rotary hammer / SDS-plus hammer drills
• Application material: masonry and concrete
• Design: single flute/core optimized for percussion drilling

How to use

Fit the bit into an SDS-plus compatible rotary hammer chuck according to the drill manufacturer’s instructions, ensuring it locks securely. Mark the drilling position and use appropriate safety equipment such as eye protection and hearing protection. Start drilling at low speed to create a guide, then apply steady pressure and operate at recommended hammering mode for masonry. Withdraw the bit periodically to clear dust from the hole and allow cooling. After completing the hole, clean debris before inserting anchors or fixings.

Usage recommendations

Use this 6 mm, 210 mm drill bit with the correct hammer setting for masonry and avoid excessive lateral force. For extended bit life, remove dust frequently, allow brief cool-down periods during prolonged use, and replace the bit if the tip becomes visibly worn or the drilling speed declines significantly.