Drill bit AWTools AW43544 — AWTools AW43544, replacement drill bit

AWTools AW43544 is a replacement drill bit designed for use with SDS+ hammer drills and rotary hammers for drilling in concrete, reinforced concrete, rebar, brick and other hard materials. Constructed from 40CR alloy steel with a YG8C carbide tipped blade, the bit features a centring point with a 130° point angle and a grooved SDS+ shank to secure the bit in the chuck. Double spiral flutes aid chip evacuation to help prevent overheating and reduce vibration, while four cutting edges deliver smooth hole finishes and lower the risk of jamming when encountering rebar.

Advantages

The AWTools AW43544 combines a carbide-tipped cutting head with a hardened 40CR alloy steel body for improved wear resistance and durability under impact drilling conditions. The 130° centring point provides accurate starts and reduces walking on hard surfaces. Double spiral flutes accelerate removal of debris and dust from the hole, helping to maintain cutting efficiency and manage heat, while the four cutting edges give cleaner holes and better performance when drilling through reinforced materials. The SDS+ grooved shank ensures secure retention and quick bit changes in compatible chucks.

Suitable for

• Drilling holes in concrete and reinforced concrete
• Drilling through rebar and other reinforced structures
• Creating openings in brick and masonry
• Use with SDS+ hammer drills and rotary hammers for impact drilling tasks
• General construction and renovation drilling where a carbide-tipped SDS+ bit is required

Key specifications

• Material: 40CR alloy steel body with YG8C carbide tipped blade
• Point angle: 130° centring point
• Flute type: double spiral for efficient chip evacuation
• Cutting geometry: four cutting edges for smooth holes
• Shank type: grooved SDS+ shank for secure retention
• Intended materials: concrete, reinforced concrete, rebar, brick and other hard materials
• Tool compatibility: suitable for hammer drills and rotary hammers with SDS+ chucks

How to use

Select a drill or rotary hammer with an SDS+ chuck that matches the AWTools AW43544 shank. Insert the bit into the chuck until it locks into place, confirming secure retention. For best results when starting a hole, position the centring point on the marked spot and apply steady pressure; use the hammer function for concrete and reinforced materials and rotary mode for light-duty drilling if available. Periodically withdraw the bit to clear debris and allow cooling when drilling deep or large-diameter holes. Replace the bit if the carbide tip becomes blunt, chipped, or damaged to maintain drilling accuracy and safety.

Usage recommendations

Use appropriate personal protective equipment (safety glasses, hearing protection, dust mask and gloves) and follow the drill manufacturer's instructions. Match drill speed and impact settings to the material: use hammer impact for concrete and reinforced concrete, and moderate speed to preserve the carbide tip. Store the bit in a dry place and avoid striking the carbide tip on hard surfaces when the bit is unsecured.