3951X Gear, 21-T pinion (32-p), heavy duty (machined, hardened steel)/ set screw

3951x-gear,-21-t-pinion-(32-p),-heavy-duty-(machined,-hardened-steel)/-set-screw 3951X Gear, 21-T pinion (32-p), heavy duty (machined, hardened steel)/ set screw