AWTools SDS‑MAX drill bit 38×800×940 mm — long rotary hammer bit for concrete and masonry

AWTools SDS‑MAX drill bit 38×800×940 mm is a heavy‑duty long rotary hammer bit engineered for drilling large diameter holes in concrete, masonry and natural stone. The bit is supplied with an industry‑standard SDS‑MAX shank for secure seating in compatible rotary hammers and an extended working length to reach deep or hard‑to‑access locations, making it suitable for through‑wall drilling, anchor installation and construction tasks where greater drilling depth is required.

Advantages

The long length and robust flute design provide efficient debris removal and stable drilling performance when penetrating dense materials. The SDS‑MAX shank ensures a reliable connection to rotary hammers for high impact transfer and extended bit life under heavy loads. Precision ground cutting edges reduce wandering at startup and improve hole quality in reinforced concrete and masonry.

Suitable for

• Drilling large diameter holes in concrete for anchors and sleeves
• Through‑wall and deep‑reach drilling in construction and renovation
• Creating openings in masonry and natural stone for installations
• Preparation work for mechanical and electrical installations

Key specifications

• Diameter: 38 mm
• Working length: 800 mm
• Total length: 940 mm
• Shank type: SDS‑MAX
• Tip and flute: carbide‑tipped cutting edges with spiral flute for dust evacuation
• Material compatibility: concrete, reinforced concrete, masonry, natural stone

How to use

Select a rotary hammer with SDS‑MAX chuck compatible with a 38 mm bit and set the tool to hammer‑drill mode. Mark the drilling position and start at low speed to establish a centered hole, then increase speed and apply steady pressure while allowing the hammer action to do the work. Periodically withdraw the bit to clear dust and debris from the hole for more efficient cutting and to reduce heat buildup. For very deep holes, perform intermittent extraction to improve dust removal and prolong bit life.

Usage recommendations

Use appropriate personal protective equipment including safety glasses, hearing protection and dust mask when drilling. For reinforced concrete, reduce lateral pressure and maintain straight feed to avoid premature wear. When drilling very deep holes, consider incremental drilling and use a dust extraction system or wet drilling technique where applicable to control dust and improve visibility.