Drill Bit AWTools SDS‑MAX square shank 20 mm × 800/940 mm, model AW43831

AWS SDS‑MAX drill bit model AW43831 is a long‑reach masonry bit designed for SDS‑MAX rotary hammers. With a 20 mm square shank and an overall length of 940 mm (800 mm working length), this bit is made for drilling deep holes in concrete and masonry during renovation and construction tasks. The square shank connection ensures secure engagement with compatible SDS‑MAX chucks and effective transfer of impact energy for efficient material removal.

Advantages

The AWTools SDS‑MAX 20 mm × 800/940 mm drill bit offers extended reach that allows deeper holes without repositioning the tool, reducing setup time on job sites. Its SDS‑MAX compatibility and square shank provide reliable retention in rotary hammers designed for SDS‑MAX systems. The length and robust construction improve performance in demanding concrete and masonry applications, while the defined working length helps control drilling depth during installations.

Suitable for

• Drilling deep anchor and fixing holes in concrete and reinforced concrete
• Masonry drilling for renovation and retrofit projects
• Installing through‑floor conduits or services where long reach is required
• Construction tasks requiring repetitive deep drilling with rotary hammers

Key specifications

• Shank type: SDS‑MAX square shank
• Diameter: 20 mm
• Working length: 800 mm
• Total/overall length: 940 mm
• Intended materials: concrete and masonry
• Tool compatibility: rotary hammers with SDS‑MAX chuck

How to use

Fit the drill bit into an SDS‑MAX compatible rotary hammer according to the tool manufacturer's instructions, ensuring the square shank is fully engaged and locked. Use the proper hammer or combined hammer‑drill mode suitable for concrete and masonry. Start drilling at low speed to establish the pilot hole, then apply steady pressure and appropriate hammering action to progress to the required depth. Withdraw the bit periodically to clear dust from the hole and prevent overheating or glazing of the cutting head.

Usage recommendations

Wear appropriate personal protective equipment including eye and ear protection, dust mask, and gloves when drilling. Match the drill bit diameter and length to the anchor or fixture specifications, and verify that the rotary hammer is rated for use with long‑reach SDS‑MAX accessories. For reinforced concrete, use intermittent drilling and clear debris frequently to maintain bit performance.