The HitchMaster is a simple pulley with no moving parts. Like any pulley, it works by trading force for distance: it's easier to lift, say, an engine block, but you'll have to pull the rope a lot ...
SALT LAKE CITY (April 5th, 2021) — Petzl, manufacturer of professional safety equipment for over 25 years, will release a new line of swivel pulleys. The SPIN line features three new pulleys, which ...