Shaft is built all the way through handle with bolt on other side. 

Attribute Label	Value
Certification	NA
Handle Material	Heavy Duty Plastic
Head Types	Slotted, Phillips
Package Height (cm)	5.40
Package Length (cm)	33.80
Quantity	10 PCS
Shaft Material	Chrome Vanadium
Sizes	Slotted: 6 x 38, 3 x 75, 5 x 75, 6 x 100, 8 x 150 MM. Phillips: PH2 X 38, PH0 X 75, PH1 X 75, PH2 X 100, PH3 X 150 MM