Bafang Mid Drive Motor Crankshaft Nut Socket Tool | Fits M500 M600 M620 BBS01 BBS02 BBSHD, E-bike Installation & Removal Wrench

✅ Wide Compatibility: Custom for Bafang M500/G520, M600/G521, M620/G510 & BBS01/BBS02/BBSHD mid-mounted e-bike motors

✅ Core Function: Install & remove crankshaft lock nut, chainring fixing nut during motor assembly, crank replacement and daily maintenance

✅ Premium Material: High carbon steel forging, high hardness, wear-resistant, no deformation under big torque tightening

✅ Standard Interface: 1/2 inch square drive hole, match common torque wrench for accurate torque control, avoid thread damage

✅ Workshop Essential: Perfect for e-bike repair shop, DIY ebike conversion and aftermarket motor servicing