Lisle 29150 9pc Universal Brake Caliper Bit Set. Nine Sizes for Brake Caliper Bolt Applications. Set includes four Torx and five hex bits for removal and installation of brake caliper mounting bolts. Includes the following sizes: T-40, T-45, T-47, T-50, 1/4", 3/8", 7mm, 8mm and 10mm. All bits are 3/8" square drive. Handy sleeve keeps bits together in one place.