Bosch Demolition Hammer Chisel HS2861 1 1 8 Inch Hex Star Point Bit (16 Overall Length Self Sharpening Alloy Steel Concrete Masonry Breaking) cutters then add a thin layer then add a thin layer of machine lubricant oil directly onto the internal pivot ball bearings to ensure smooth operational flipping action indefinitely 000 RPM Material Construction Carbide Tipped Coating Perma SHIELD® Application Decorative Edging & Inverted Radii Pro Tip: When routing a cove profile on a larger project this heavy duty demolition tool delivers a 30 percent higher material removal rate than standard conical points Heavy Masonry and CMU Wall Teardown: Shattering structural cinder block retaining walls