This product is a heat-treated steel wrench specifically for the use of removal and installation of bottom brackets.
It is powder-coated for corrosion resistance and fits externally ringed bottom brackets with 16 splines, such as Shimano Hollowtech II.
Includes preload tensioning tool.
![Bosch Drill Bits HSS-R DIN 338 Packs of 10 Sizes 1mm - 6mm[1.5 mm]](http://cdn.shopify.com/s/files/1/2700/3712/products/DG_Domestics_23f7e8bd-c0cb-49bf-942d-98a27d7f6835_{width}x.jpg?v=1554734593)
![Bosch Drill Bits HSS-R DIN 338 Packs of 10 Sizes 1mm - 6mm[1.5 mm]](http://cdn.shopify.com/s/files/1/2700/3712/products/DG_Domestics_23f7e8bd-c0cb-49bf-942d-98a27d7f6835_grande.jpg?v=1554734593)