Drill bit AWTools AW42874 — model AW42874, weight 1.21 kg

AWTools AW42874 drill bit, model AW42874, weight 1.21 kg. Constructed with a 40CR alloy steel body and a YG8C tungsten carbide head, this replacement drill bit is intended for drilling in masonry materials such as concrete, granite, natural stone, brick and ceramic tiles. The two-cutter spiral design supports efficient spoil removal and reduces vibration during use. The grooved SDS+ shank secures the bit in compatible hammer drills and rotary impact hammer drills to prevent accidental ejection.

Advantages

The two-cutter spiral geometry promotes consistent chip evacuation and helps limit overheating of the cutting edges. The carbide-tipped head (YG8C) provides improved wear resistance compared with plain steel tips, extending service life under typical masonry drilling conditions. The 40CR alloy steel body balances toughness and flexibility to resist breakage under impact loads. The standardized grooved SDS+ shank ensures straightforward compatibility with SDS+ chucks and reduces the risk of the bit slipping out during hammering.

Suitable for

• Drilling holes in concrete and reinforced concrete
• Drilling in natural stone and granite
• Drilling into brick and masonry walls
• Cutting holes in ceramic tiles with appropriate technique
• Use with hammer drills and rotary impact hammer drills with SDS+ holders

Key specifications

• Body material: 40CR alloy steel
• Tip material: YG8C tungsten carbide
• Cutting design: two-cutter spiral
• Shank type: grooved SDS+
• Intended materials: masonry, concrete, granite, natural stone, brick, ceramic tile
• Weight (product): 1.21 kg

How to use

Fit the AWTools AW42874 drill bit into an SDS+ chuck according to the tool manufacturer’s instructions until it locks securely. Select the correct drill speed and hammer setting for the material being drilled: use hammer mode and moderate speed for concrete and masonry, and reduced hammer action or rotation-only for delicate ceramic tiles. Apply steady forward pressure without excessive force to allow the two-cutter design to evacuate spoil. Periodically withdraw the bit to clear debris and allow cooling. Replace the bit if the carbide tip becomes chipped, rounded, or if drilling performance significantly declines.

Usage recommendations

Use appropriate personal protective equipment, including eye protection, hearing protection and a dust mask when drilling masonry. For reinforced concrete, ensure the bit is suitable for rebar contact only if stated by the tool or bit manufacturer. Store the bit dry and free from corrosive chemicals to preserve the carbide tip and alloy steel body.