HValley Tools your Router Bit Headquarters. You need it, we have it. Need to change bearings in a snap? Try the MLCS router bit vise. Need to keep your bits sharp? The 4 grit diamond bar hone is the answer. Need to clean your bits? Check out the Total Tool Care Set. MLCS has a wide variety of router collet extensions, stop collars, ball bearing guides, top mounted bearing guides, adapter bushings to meet your woodworking needs.