Drill bit DeWalt DT8938 SDS-plus 14×160/100 mm for hammer drills

DeWalt DT8938 SDS-plus 14×160/100 mm is a hammer drill bit designed for drilling holes in concrete, masonry and natural stone. The 14 mm diameter and 100 mm working length provide a reliable hole depth for anchor bolts, through-holes and installations, while the SDS-plus shank ensures secure engagement in compatible hammer drills and rotary hammers. The bit's total length of 160 mm offers extra reach for standard construction and renovation tasks.

Advantages

The SDS-plus design provides fast, tool-free insertion and positive locking in the chuck of compatible hammer drills, improving impact transfer and drilling efficiency. A hardened carbide tip maintains edge retention for longer service life when drilling in abrasive materials. The combination of a 14 mm diameter and a 100 mm working length balances material removal with ease of handling, suitable for repeated drilling operations on building sites and in refurbishment work.

Suitable for

• Drilling anchor and fixing holes in concrete and reinforced concrete
• Making holes for masonry bolts and wall plugs in brick and blockwork
• Preparing holes for installations in stone and natural rock
• General construction and renovation drilling where SDS-plus hammer action is required

Key specifications

• Shank type: SDS-plus for secure engagement with SDS-plus hammer drills
• Diameter: 14 mm
• Total length: 160 mm
• Working (effective) length: 100 mm
• Tip material: carbide tip for improved wear resistance
• Application materials: concrete, masonry, natural stone

How to use

Insert the SDS-plus shank into the hammer drill's chuck until it locks, ensuring the tool is switched off before changing bits. Select the hammer-drill mode for impact drilling in concrete or masonry. Apply steady forward pressure without forcing the bit; allow the drill's hammer action to do the work. Withdraw periodically to clear dust from the hole and reduce heat build-up. Use appropriate personal protective equipment such as eye protection, gloves and a dust mask when drilling.

Usage recommendations

For best results, match the drill speed and hammer setting to the material: use higher hammer impact settings for hard concrete and moderate settings for softer masonry. When drilling through reinforced concrete, proceed with controlled pressure and withdraw occasionally to clear debris. Store the bit in a dry place and avoid excessive side loads to preserve the carbide tip and shank locking surfaces.