The slide hammer bearing puller set has been designed for removing “hard-to-pull” bearings without damaging the bearing housing. Expansion grippers are available from No. 00 to 06. These numbers 00 to 06 are indicating the last two numbers of the bearing number. When ordering, please make sure to indicate the last two bearing figures to get the right tools for your work. The expansion grippers are drop forged from vanadium alloy steel, heat-treated and chrome plated. Remarks : Sold by set only.