HLOFIZI 3/16" SDS Plus Hammer Drill Bits for Masonry, Concrete, Cinder Block, Brick, Stone, working length 4 Inch, 6 Pack.Due to optimized flute and spacious spiral design, it’s able to remove dust rapidly from the bore hole, and allowing for quick and easy installations. Centric tip design for easy centering and fast drilling into concrete and masonry material Up to 5X longer life for anchor drilling in tough applications Product Information: Type: Rotary Hammer Drill Bit Shank Type: SDS Plus (Not Fit SDS MAX) Bit Diameter (in): 3/16 Overall Length (in): 6 Drilling Depth (in): 4 Package Include:6-Piece, 3/16” x 4” x 6” SDS Plus Hammer Drill Bit 100% SATISFACTION GURANTEED: If our HLOFIZI 3/16” sds plus masonry bit fails for any reason, steel break or carbide head worn down, please contact us for quick replacement, or full refund within 90 days.