Heavyduty masonry drill bit set engineered for reliable concrete and stone drilling Key benefits Durable cutting: carbon steel body with carbide tip holds an edge under heavy use, so you get consistent holes through concrete, limestone and natural or artificial stone. Stable drilling and straighter holes: Triangle shank design improves torque transmission and centering accuracy, reducing wobble for cleaner, more precise holes in dense substrates. Secure fit for most drills: Triangle shank fits all drills with 013mm 3jaw chucks, providing a secure grip and reduced slippage during demanding jobs. Reach deeper targets: Available lengths of 300mm or 350mm (depending on size) let you drill deeper anchor or throughhold applications without switching bits. What's included and specifications Sizes: 6 mm, 8 mm, 10 mm, 12 mm, 16 mm Materials: carbon steel body with carbide tip Shank: Triangle shank, fits 013 mm 3jaw chucks Length: 300 mm or 350 mm depending on size Recommended for: Masonry, light concrete, limestone, natural and artificial stone Compatible with: Impact drills and standard hammer/drill applications (triangle shank improves stability) How this set solves common problems Stops bit slip and rotation in the chuck by using a triangle shank for a positive mechanical lock. Reduces bit wear and chipping on tough materials with carbide tips and a hardened steel body, lowering the frequency of replacements. Minimizes hole wandering and wobble for more accurate anchors and fittings, saving time on rework and alignment. Practical applications Anchoring and fixtures: Drill precise deep holes for anchor bolts and expansion anchors in concrete and block. Landscaping and masonry work: Create clean holes through natural or artificial stone for fasteners, brackets, or drainage runs. Electrical and plumbing penetrations: Bore through light concrete and masonry to run conduit or pipe where deeper reach is required. Usage notes Select the bit size that matches your anchor or fastener diameter. Ensure the drill's chuck accepts 013 mm 3jaw chucks and securely clamps the triangle shank. Use appropriate drill speed and feed pressure for masonry and concrete to extend bit life.