ZEBRA 1/4 Inch Ball-Head 3-in-1 Ratchet (Ratchet, Screwdriver and T-handle)1 4 inch ball head ratchet 3 in 1! Can be used like a conventional ratchet, as a screwdriver or T handle Multi functional ball head ratchet with variable handle Tip: 6. 31 4 inch external square Standard: DIN 3122, ISO 3315 Head: 72 teeth, 5 angle of rotation, 270 rotatable joint Handle: 2 component straight handle or adjustable 90 as T handle Tip Size 1 4 inch Length (L1) 145 mm Ratchet head height with square (B2) 26. 5 mm Ratchet diameter (D2) 20 mm