Drill bit AWTools SDS Max 38 x 400 x 540 mm square shank

AWTools SDS Max 38 x 400 x 540 mm square shank drill bit is designed for use with SDS Max rotary hammers to create deep, precise holes in concrete, stone and brick. With a 38 mm cutting diameter, 400 mm working length and 540 mm overall length, this masonry bit is intended for heavy-duty construction and renovation tasks where reliable penetration and stable drilling performance are required. The square shank ensures secure coupling with compatible chucks and reduces slippage during high-torque operation.

Advantages

The drill bit combines a robust carbide cutting head with a reinforced steel shaft to withstand repeated impact drilling in dense materials. Its 38 mm diameter and extended working length allow drilling of deep anchor holes and through-holes without frequent repositioning. The SDS Max square shank design delivers positive engagement with rotary hammers, improving torque transfer and reducing bit wobble for straighter holes and longer tool life.

Suitable for

• Drilling deep anchor holes in concrete and reinforced concrete
• Creating through-holes for plumbing and electrical runs in masonry
• Installation of heavy-duty fixings and bolt anchors
• Renovation and structural work requiring durable masonry drilling

Key specifications

• Cutting diameter: 38 mm
• Working length: 400 mm
• Overall length: 540 mm
• Shank type: SDS Max square shank
• Intended materials: concrete, stone, brick
• Application type: impact/rotary hammer drilling

How to use

Fit the SDS Max square shank securely into the rotary hammer chuck following the tool manufacturer's instructions. Mark the drilling point and start at low speed to establish the hole, then increase to the appropriate hammering/rotation setting for the material. Apply steady, even pressure without forcing the bit; allow the hammer action to do the work. Periodically withdraw the bit to clear dust and debris, especially when drilling deep holes, to maintain drilling efficiency and reduce wear.

Usage recommendations

Use appropriate personal protective equipment including eye protection, hearing protection and dust mask. For reinforced concrete, probe holes carefully to avoid rebar; where rebar is encountered, reduce feed force and use short pecking actions. Match the drill speed and hammer settings to the base material and avoid overheating by pausing regularly when drilling long or deep holes.