[Specifications and Packaging]: 8pcs sds hammer drill bit set.Include size:1/4 X 4-inch, 5/16 X 4-inch, 3/16 X 6-inch, 9/32 X 6-inch,1/4 X 6-inch, 5/16 X 6-inch, 3/8 X 6-inch, 1/2 X 6-inch all in plastic case.
[Function]: Masonry hammer drill bit fits all sds-plus rotary hammer drills.Designed for fast drilling in block,masonry and concrete.
[Material]: SDS plus drill bit set carbide-tipped crown bit heads more stable, harder, more durable, extra-long tool life.
[Advantage]: Hammer drill bits optimized tip design provides better bit penetration and rounder holes.
[Special Flute Design]: Concrete drill bit set wider and deeper U-shaped flute design cleans debris out fast for easier, efficient drilling, work time longer.Grooves on sds plus shank – the shank has two types of grooves (total of four). The smaller grooves fix bit in the chuck. The larger grooves allow bits slipping in the chuck when working, enhancing the drilling torque and hammering energy.