Features and Benefits:�Wear Guard Tip™ protects fit over the life of the bit�Optimized Shockzone™ absorbs peak torque and prevents breaking�Custom Alloy76™ Steel engineered for extended life�Up to 50X Life vs other impact bits�Laser etched size for easy identification�Reams 1/2", 3/4" and 1" EMT�Replacement blades forSHOCKWAVE™ Conduit Reaming Bit Holder (48-32-2350)�Thick, hardened tool steel blade provides up to 5x blade lifeThe Milwaukee conduit reamer replacement blade set offers replaceable components for the SHOCKWAVE™ conduit reaming bit holder (48-32-2350). Included in the set are two replacement blades, two replacement cap screws as well as a hex key to easily replace parts. The replacement blades are made of thick, hardened tool steel and offer up to 5x blade life vs. the competition.