Nine Piece Triple Square (12 point) Bits to Fit 4, 5, 6, 8, 10, 12, 14, 16 and 18mm Sizes.

For head bolts, brake caliper bolts, door handle screws, axle bolts and other applications. The 4 and 5mm bits have 5/16 hex drive. The 6, 8, 10 and 12mm bits have 1/2 hex drive. The 14 and 16mm bits have 5/8 hex drive. The 18mm bit has a 3/4 hex drive. The three largest sizes are designed to work on tamper-proof applications.