Relton spline shank single cutter hammer bits are the production drills for spline-drive rotary hammers: a carbide single cutting edge with self-centering tip, spiral flutes and a reinforced core, cutting clean anchor and dowel holes in concrete, brick and stone. Drilling diameters run 1/2 in. through 1-1/2 in. with drill depths from 4 in. to 60 in., from shallow fastener holes to deep utility penetrations.

The spline connection grips tight under heavy load for maximum torque transfer, and the single cutter tip focuses energy for fast, accurate holes. When harder, rebar-laced pours call for a different head, the pyramid point multi-cutter version runs in the same hammers; a Quik-Lok adapter will also let a spline machine turn SDS-Plus bits for lighter work. Browse the full electric hammer tooling range for matching depths and diameters.

• Drilling diameters 1/2 in. through 1-1/2 in.; drill depths from 4 to 60 in.
• Carbide single cutter tip with self-centering point minimizes wandering for accurate hole starts
• Spline shank grips tight in spline-drive rotary hammers for maximum torque transfer under load
• Optimized spiral flutes expel dust rapidly, reducing heat buildup in deep holes
• Reinforced core damps vibration for steadier drilling and operator comfort
• Applications: anchor holes, rebar dowels, and plumbing, electrical and HVAC penetrations in reinforced concrete and masonry
• Stocked by Crowder Supply in Denver in the popular sizes