Sumner Hi Boy Jack Assembly

The Hi Boy is a tall jack specifically designed for tight pipe installation such as in mechanical rooms or tunnels. The Hi Boy is a safe, portable folding stand that is easy to transport and holds up to a hefty 450kg. In its lowest position at 98cm and its highest at 180cm, the Hi Boy is ideal for everyday fabrication of weld pipe. Legs fold up for convenient storage in job boxes or truck beds. FEATURES: • Holds 1,000 lbs at 72" • Designed for pipe installation in tight areas • Folds for easy transport • Quick action lock washer for fast height positioning • Patented Fall Guardtrade; feature allows 1" (25 mm) safety zone around lock washer • Large, convenient adjustment handle • Set screw for double margin of safety • Set screw can lock jack head to stand for transportation - no loose pieces SPECIFICATIONS: • 1-1/2" (38 mm) Acme fine adjustment thread - the largest in the industry