With the Phantom 16.220 hss subland step drill, you drill and countersink in a single continuous work step. This short step drill combines a 4.3 mm clearance hole with an 8 mm 90° countersink designed for M4 screws and bolts. It saves valuable machining time by eliminating tool changes while preventing concentricity deviations between the hole and countersink. Manufactured in accordance with din 8374-A fine fit specifications, it ensures countersunk fasteners sit perfectly flush. An ideal solution for efficient metalworking, machining, and assembly operations.
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