The BBT-222 - Stainless Pro Blind Hole Puller/Mallet Set is a high-quality tool set designed specifically for professional mechanics. It is a major upgrade from our standard blind hole puller, as it is made entirely of stainless steel.This set includes heat-treated stainless collets that can remove bearings with an inside diameter ranging from 8mm to 32mm. The stainless slide hammer shaft acts as a handle and also doubles as a mallet-head. Two screw-in replaceable heads, one made of brass and the other rubber, are included with the set.Additionally, the back side of the mallet is machined to hold a cassette lock-ring tool via magnets. This allows the mallet to conveniently serve as a lock-ring tool as well.The BBT-222 - Stainless Pro Blind Hole Puller/Mallet Set from the brand Enduro Bearings is a must-have tool for any mechanic looking to remove bearings efficiently and professionally.