Drill bit STANLEY SDS+ 12 mm for concrete, model STA54542

STANLEY SDS+ 12 mm drill bit for concrete, model STA54542, is a rotary hammer accessory intended for use with drills that accept SDS+ shanks. The 12 mm diameter and masonry-optimized tip geometry enable efficient drilling into concrete, brick and other masonry materials. The bit is designed to produce clean anchor and dowel holes and to perform through-drilling for construction and renovation tasks where reliable hole dimensions and consistent drilling progress are required.

Advantages

The SDS+ interface ensures secure tool-to-bit engagement and easy bit changes without additional tools. The hardened steel body and carbide or carbide-tipped cutting face (as typical for masonry bits of this class) provide durability when working with abrasive concrete and masonry. The 12 mm diameter gives a balance between hole size for common fasteners and manageable drilling effort, while the flute geometry helps evacuate dust and debris to maintain drilling efficiency and reduce binding.

Suitable for

• Drilling anchor and dowel holes in concrete and solid brick
• Creating passage or through-holes in masonry for pipes or cables
• General construction and renovation masonry work requiring a 12 mm hole

Key specifications

• Shank type: SDS+ compatible
• Nominal diameter: 12 mm
• Intended materials: concrete, brick, masonry
• Application: hammer drilling/rotary hammer use
• Typical feature: carbide cutting face for extended wear resistance

How to use

Install the drill bit into an SDS+ compatible hammer drill until it locks into the chuck. Select hammer drilling mode and an appropriate rotational speed for the drill and substrate. Position the bit at the marked drilling point, apply steady axial pressure and start drilling. Periodically withdraw the bit to clear dust from the hole if drilling deep or if dust accumulation slows progress. For through-holes, maintain alignment and control to avoid breakout on the exit side. After use, clean dust from the flutes and inspect the cutting face for wear before storing.

Usage recommendations

Use appropriate personal protective equipment including eye protection and hearing protection. For reinforced concrete, consider using a dedicated rebar-detecting procedure before drilling. Match the 12 mm hole to the anchor or dowel size specified by the fastener manufacturer and follow installation instructions for anchors and fixings.