Masonry drill bit DeWalt DT8933-QZ, diameter 1.2 cm, 1 pc, for rotary hammer

DeWalt DT8933-QZ masonry drill bit with a 12 mm diameter is a single-piece bit designed for use in rotary hammers. The bit is intended for drilling into concrete, brick and other masonry materials where hammer action is required. Its tip geometry and robust construction enable effective impact drilling and reliable penetration in building materials during construction, renovation and installation work.

Advantages

The drill bit combines a durable cutting tip and a shank compatible with hammer drilling systems, providing consistent drilling performance in masonry. Its 12 mm diameter offers a balance between clearance size and drilling speed for common anchoring and fixing tasks. The single-piece design reduces the risk of breakage at joints and ensures stable transfer of impact energy from the rotary hammer to the cutting edge.

Suitable for

• Drilling holes for anchors and wall plugs in concrete and brick
• Preparing fixing points for installation of shelves, frames and electrical boxes
• General masonry drilling during construction and renovation

Key specifications

• Diameter: 12 mm
• Quantity: 1 piece
• Intended tool type: rotary hammer (hammer drilling)
• Material compatibility: concrete, brick, masonry
• Tip geometry: optimized for impact drilling

How to use

Fit the bit into the rotary hammer according to the tool manufacturer's instructions, ensuring the shank is securely locked. Mark the drilling position, start the hammer at low speed to create a guide indent, then increase power and apply steady pressure while allowing the tool's hammer action to do the work. Periodically withdraw the bit to clear dust from the hole and prevent overheating. For deeper holes, remove debris frequently to maintain drilling efficiency.

Usage recommendations

Use appropriate personal protective equipment including safety glasses, ear protection and dust mask. Select the correct drill speed and hammer setting for masonry work and avoid excessive axial force which can damage the bit or tool. For clean anchor holes, drill slightly deeper than the anchor length and clear dust thoroughly before inserting fixings.