The ENDO EWF-9 is a zero-gravity spring balancer for any tool weighing 10-20 lb - for example nutrunners, drills, or grinders - and works equally with any other tool or device in that weight range. It holds the load weightless at any point in its 4.3 ft of cable travel.

Specifications:

• Capacity: 10-20 lb (4.5-9.0 kg)
• Factory-set load: 14.3 lb (6.5 kg)
• Cable travel: 4.3 ft (1.3 m)
• Wire rope: carbon steel, 0.16 in (4.0 mm)
• Unit weight: approx. 7.7 lb (3.5 kg)
• Fall-arrest device standard: if the spring ruptures, a safety pin stops the tool from falling anywhere in the cable travel

Lighter tool? See the EWS-7 (11-15.4 lb). Heavier? Continue with the EWF-15 (20-33 lb). Need more reach? The ELF-9 is the 8.2 ft long-reach version.