Wera 395 HO Kraftform Plus Hollow Shaft Imperial Nutdrivers - Wera 05029507001, This 1/2in nutdriver from Wera has a chrome-plated 80 x 11mm round blade with a 112mm multi-component non-roll Kraftform handle and is suitable for use with hexagonal headed screws, nuts and bolts.
This driver has a hollow shaft to enable screws on long threads to be tightened or loosened.
Wera 05029507001 395 HO Kraftform Plus Hollow Shaft Imperial Nutdriver 1/2"/80