287B – Roller-type stud drivers – Single-diameter – 287B.7

• Capacity: Ø 6 to 16 mm.
• Turned by means of the hexagonal drive or a 1/2″ – 12.7 mm ratchet.
Except model 287B.16, which has a through-hole for a bar.
• Allows to tighten or untighten the studs.