1-3/8" x 16" Spline Shank Masonry Rotary Hammer Drill Bit
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1 3/8" x 16" Spline Shank Masonry Rotary Hammer Drill Bit Carbide Tipped masonry drill Tungsten-carbide tip provides superior wear resistance in tough applications Active-centering tip for optimum guidance when drilling in concrete and reinforced concrete Large flute volume for fast drilling, dust transport and less clogging Narrow flute back for reduced friction between bit and material Inclined side cutters for aggressive drilling
The shank has 12 splines for use with a spline-drive rotary hammer. Drill holes using simultaneous rotary and hammering action to break masonry material into tiny granules. These bits drill faster and penetrate material with less pressure than rotary-only bits. Also called percussion or impact bits.
Multi-point drill bits have five carbide points on the tip, which provide longer life and reduce vibration for drilling smoother, rounder holes than standard-point masonry drill bits.