Drill bit AWTools AW43521 — metal/wood drilling accessory, MPN AW43521

AWTools AW43521 is a single replacement drill bit intended for general drilling tasks in metal, wood and hard masonry. Manufactured with a 40CR alloy steel body and a YG8C carbide-tipped blade, this bit combines a hardened core with a wear-resistant cutting tip. The centering point with a 130° point angle and four cutting edges produce clean, precise holes while the double spiral flute accelerates chip evacuation and reduces heat build-up and vibration during operation. The grooved SDS+ style shank secures the bit in compatible hammer drills and rotary hammers for stable performance.

Advantages

The carbide-tipped cutting edge offers extended life and consistent cutting performance in abrasive and dense materials. Four cutting edges ensure smooth hole walls and lower the risk of the bit snagging on reinforcing elements. Double spiral flutes promote efficient removal of chips and dust, helping to prevent overheating and maintain drilling speed. The SDS+ grooved shank provides secure retention in hammer drills and rotary hammers, reducing slippage and improving user control.

Suitable for

• Drilling holes in concrete, reinforced concrete and rebar
• Drilling in brick and other masonry materials
• General metal and wood drilling tasks requiring a carbide tip
• Use with hammer drills and rotary hammers with SDS+ compatibility

Key specifications

• Body material: 40CR alloy steel
• Cutting tip: YG8C carbide
• Point angle: 130° centering point
• Flute design: double spiral for chip evacuation
• Cutting geometry: four cutting edges for smooth holes
• Shank type: grooved SDS+ style for secure retention
• Intended materials: concrete, reinforced concrete, rebar, brick, metal, wood

How to use

Select a drill or rotary hammer that accepts SDS+ shanks and install the AWTools AW43521 bit by aligning and inserting it into the chuck until it locks. For masonry and reinforced concrete, use the hammer function; for metal and wood, disable hammering and drill at appropriate speeds. Start drilling with light pressure to ensure the centering point locates accurately, then apply steady pressure while letting the tool do the work. Periodically withdraw the bit to clear accumulated dust and chips, and allow the bit to cool if extended drilling causes noticeable heat.

Usage recommendations

Wear appropriate personal protective equipment including eye protection, hearing protection and gloves. Verify tool compatibility and follow the drill manufacturer's guidance on speed and hammering settings. For prolonged drilling in hard materials, use intermittent drilling to reduce heat and extend bit life.