Drill Bit DeWALT DT8931-QZ 1 cm Diameter 310 mm Length

DeWALT DT8931-QZ rotary hammer drill bit with SDS plus shank, 1 cm diameter and 310 mm overall length. The bit has a solid carbide tip with four cutting faces and a four-flute helix designed to reduce vibration, prevent jamming when drilling through rebar, and improve debris evacuation for fast, efficient drilling in hard concrete.

Advantages

The four cutting faces on the carbide tip provide precise cutting and reduce the tendency to walk, while the four-flute helix maximises removal of dust and chips. The SDS plus connection ensures secure mounting in compatible rotary hammers. The design minimises vibration and lowers the risk of the bit becoming stuck in reinforced concrete.

Suitable for

• Drilling holes in hard concrete and masonry
• Work with rotary hammers that accept SDS plus bits
• Situations where drilling through rebar may occur

Key specifications

• Brand: DeWALT
• Model / MPN: DT8931-QZ
• EAN: 5035048077924
• Shank type: SDS plus
• Tip: Solid carbide with four cutting faces
• Diameter: 1 cm
• Overall length: 310 mm
• Weight: 60 g

How to use

Install the DT8931-QZ bit into an SDS plus compatible rotary hammer according to the tool manufacturer's instructions. Select the rotary hammer mode appropriate for concrete drilling. Apply steady pressure and allow the bit to do the cutting; avoid excessive force. Withdraw the bit periodically to clear accumulated debris for consistent drilling performance.

Usage recommendations

Use appropriate personal protective equipment (safety glasses, gloves, hearing protection) and ensure the workpiece is secure. For longer service life, avoid overheating the bit by running at recommended speeds and clearing debris frequently. Replace the bit if the carbide tip becomes excessively worn or damaged.