You can buy gears off the shelf ... to produce your own gears with a homemade cutting tool. The cutting tool for the job is an M16 machine tap, chosen for the smaller flutes compared to a hand ...

Stihl says its TS440 Cutquik cut-off machine is the first cut-off saw in the world with a blade brake, but the brake was actually created to support the saw’s adjustable guard. With the TS440 ...