Featuring a contoured ergonomic soft-touch finish, the Wiha Stubby is comfortable to use and allows for precise torque control. This highly popular 1/4″ hex driver houses 6 high quality steel bits – Slotted 4.5mm, 6.5mm, 8.0mm / PH1, PH2, PH3, and can be replaced with other 1/4″ bits as desired. The chuck magnetically retains a bit once inserted, and is compatible with the PSD Designs Strider Spanner Tool for SnGs and SMFs – also available at Magna Knives.