Drill bit AWTools AW42877 — metal/wood drilling, 548 g

The AWTools AW42877 drill bit is a professional-grade tool for controlled drilling in a range of hard and soft materials. Constructed from 40CR alloy steel with a YG8C tungsten carbide head, the bit combines core strength with a wear-resistant cutting face. Its 2-cutter spiral geometry and grooved SDS+ shank are engineered to improve chip evacuation, reduce vibration and secure the bit in compatible hammer and rotary impact drills.

Advantages

The combination of a 40CR alloy steel body and a YG8C carbide head provides high hardness at the cutting edge while maintaining shaft toughness. The 2-cutter spiral design ensures efficient removal of chips to prevent clogging and overheating during extended use. A grooved SDS+ shank maintains reliable retention in the drill chuck and simplifies bit changes. The construction supports drilling in both brittle and dense materials with reduced vibration and improved drilling stability.

Suitable for

• Drilling holes in masonry, concrete and brick for anchors and fixtures
• Working with natural stone, granite and ceramic tiles where a carbide tip is required
• General construction, assembly and repair tasks requiring a hammer or rotary impact drill

Key specifications

• Body material: 40CR alloy steel for shaft strength
• Tip material: YG8C tungsten carbide for wear resistance
• Cutting geometry: 2-cutter spiral design for efficient chip removal
• Shank type: Grooved SDS+ shank for positive retention in compatible drills
• Intended use: Suitable for masonry, concrete, natural stone, granite, brick and ceramic tiles
• Compatible tools: Hammer drills and rotary impact hammer drills
• Weight: 548 g

How to use

Install the bit into an SDS+ compatible chuck until it locks securely. Use a hammer drill or rotary impact hammer drill when working with masonry, concrete or stone; select rotary-only mode for drilling into wood or metal when appropriate. Start at low speed to establish the hole, then increase speed and apply steady pressure without forcing the bit. Periodically withdraw the bit to clear accumulated debris and allow cooling. Follow the drill and site safety instructions, including wearing eye and hearing protection.

Usage recommendations

For best results when drilling dense materials like concrete or granite, use short, steady drilling intervals and allow the bit to cool between passes. Avoid excessive lateral force to preserve the carbide tip. Regularly inspect the tip for wear and replace the bit when cutting efficiency declines.