Designed for removing concrete and brick. Are you an interior renovator in need of a durable chisel to remove mortar and plaster from walls and floors? We have developed the Pro Hex 28-4C to help you get the job done reliably. The Pro Hex 28-4C is a durable flat chisel for demolition and renovation work. It features a wide cutting edge for longevity. Use it with your rotary hammer when you need to remove plaster, mortar, gypsum, and concrete residues from floors or concrete and brick walls. Compatible with breakers with a 28mm hexagonal shank.