Two barrels made to fit over a standard watchmaker's screwdriver to give you a better grip and more torque. With a knurled finish, the barrels attach to screwdriver with a set-screw. Made to fit 4.5 and 5.5mm diameter screwdrivers.
- Set of two barrels
- Offer increased precision and torque
- Better grip with knurled finish
- Opening diameters of: 4.5mm and 5.5mm