Drill bit AWTools AW43535 — general-purpose twist drill bit, model AW43535

AWTools AW43535 is a general-purpose twist drill bit designed for use with hand drills, drill drivers, hammer drills and rotary hammers. Constructed with a 40CR alloy steel body and a YG8C carbide-tipped cutting blade, this model offers robust performance for drilling into concrete, reinforced concrete, rebar, brick and other hard materials. The bit features a centering point with a 130° point angle and a double-spiral flute geometry to support efficient material removal and reduced heat buildup.

Advantages

The carbide-tipped blade and 40CR alloy steel body provide a balance of hardness and toughness suitable for heavy-duty applications. A centering point with a 130° point angle improves positioning accuracy and initial bite, while the double-spiral flutes ensure consistent debris evacuation to minimize clogging and overheating. Four cutting edges are designed to deliver smoother hole walls and reduce the likelihood of jamming when encountering rebar. The grooved SDS+ shank secures the bit in compatible chucks to prevent accidental release during impact drilling.

Suitable for

• Drilling holes in concrete and reinforced concrete
• Creating holes through rebar and masonry
• Installing anchors, dowels and fasteners in hard substrates
• Workshop and on-site repair or renovation tasks

Key specifications

• Material: 40CR alloy steel body with YG8C carbide-tipped cutting blade
• Point angle: 130° centering point for improved positioning
• Flute design: double-spiral flutes for efficient chip removal
• Cutting geometry: four cutting edges for smooth holes and reduced jamming risk
• Shank type: grooved SDS+ compatible shank for secure retention
• Intended use: concrete, reinforced concrete, rebar, brick and other hard materials

How to use

Fit the drill bit into a compatible SDS+ chuck or the appropriate holder for hand drills or drill drivers. When drilling into concrete or masonry, start at low speed to establish the hole and then apply steady pressure; use hammer function on rotary hammers or hammer drills for reinforced concrete and rebar. Ensure the drill is held perpendicular to the surface to maintain straight holes, and periodically withdraw the bit to clear accumulated debris if drilling deep holes. Use appropriate personal protective equipment, such as safety glasses, hearing protection and dust mask, and secure the workpiece before drilling.

Usage recommendations

For prolonged bit life, avoid excessive lateral force and allow the carbide tip to do the cutting. When frequently drilling reinforced concrete or rebar, use intermittent drilling with periodic withdrawals to clear dust and prevent overheating. Replace the bit if the carbide tip is chipped or worn to maintain hole quality and reduce the risk of further damage to the tool or workpiece.