Bosch HS2167 1 1 8 In Hex x 19 In Electric Demolition Hammer Steel 5 In Wide Asphalt Cutter Pavement Breaker Spade Chisel Jackhammer Bit Quantity:1 Pack The Dremel 100 N 7 100 Series The Dremel 100 N 7 100 Series Corded Rotary Tool Kit is an industrial precision power tool engineered for high speed material removal electronic blade brake Uncompromising structural durability and optimized impact force distribution define the mechanical blueprint of this heavy duty road maintenance chisel bit angle your breaker tool at roughly 75 degrees to pry and pop sections free along expansion channels rather than burying the blade straight down vertically