Drill bit DeWalt DT9685-QZ, single-piece, weight 487 g

DeWalt DT9685-QZ is a single-piece SDS Plus masonry drill bit designed for reliable concrete drilling. Supplied as one replacement bit weighing 487 g, it features a four‑cutter carbide head and a tapered, reinforced core to improve strength and reduce flute fracture during heavy use. The bit is part of the DEWALT ELITE SERIES™, manufactured in Germany and intended for use with compatible hammer drills and SDS Plus chucks for general and professional drilling tasks in masonry and concrete.

Advantages

The drill bit uses high‑speed composite blasting (Iron Blast Technology) to harden the cutting head and lower the risk of breakage under impact. A tougher core construction provides increased material volume inside the bit for improved durability and resistance to flute breakage. An anchor wear mark is integrated to show when the bit has reached wear limits for safe mechanical anchor installation. The four‑cutter carbide tip ensures efficient material removal and stable hole formation in concrete.

Suitable for

• Drilling holes in concrete, solid masonry and block
• Installing mechanical anchors and bolts
• Replacement or spare bit for SDS Plus hammer drills
• Professional and on‑site construction tasks requiring durable masonry bits

Key specifications

• Shank type: SDS Plus compatible
• Tip: four‑cutter carbide head
• Construction: single‑piece solid bit with tapered core
• Manufacturing process: high‑speed composite blasting to harden cutting surfaces
• Wear indicator: anchor wear mark for reuse monitoring
• Intended material: concrete and masonry
• Weight: 487 g

How to use

Secure the DeWalt DT9685‑QZ into an SDS Plus hammer drill according to the drill manufacturer’s instructions. Select an appropriate drilling speed and hammer setting for the concrete or masonry being drilled. Apply steady axial pressure, allowing the hammer action and carbide tip to do the cutting; avoid excessive sideways force. Periodically withdraw the bit to clear dust and debris from the hole to maintain cutting efficiency and reduce heat buildup. Replace the bit when the anchor wear mark indicates excessive wear or when performance declines.

Usage recommendations

Use with compatible SDS Plus hammer drills and appropriate personal protective equipment including eye protection, hearing protection and dust management. For drilling reinforced concrete, start drilling on the rebar with reduced feed pressure and consider a specialist rebar cutter if frequent rebar contact occurs. Store dry and inspect the carbide tip before use.