Diablo Rebar Demon SDS-Plus 4-Cutter Full Carbide Head Hammer Drill Bit for Concrete and Reinforced Materials - 5/16" Diameter, 18" Length, 16" Working Length - DMAPL4130 Anti-Fatigue Mat The vented hole pattern matches

The vented hole pattern matches the sanders pad for maximum dust extraction

The MTCG cutting edge prevents heat buildup

It is lightweight

Characteristics One-Piece Casting

Max RPM: 4300

Diablo Rebar Demon SDS-Plus 4-Cutter Full Carbide Head Hammer Drill Bit for Concrete and Reinforced Materials - 5/16" Diameter, 18" Length, 16" Working Length - DMAPL4130 Anti-Fatigue Mat The vented hole pattern matchesMost Durable Diablo made Dura Carbide features up to 2X more carbide that withstands up to 1800F of intense heat to combat rebar hits versus standard bits that fail at 800F. Longer Life Up to 7X longer life versus standard 2 cutter hammer drill bits. Tri Metal Fusion Welding features up to 3X stronger weld to keep the full carbide head intact during extreme impact such as rebar. Precise and Stability Precision tip delivers stability and accuracy