Holemaking

Holemaking is one of the most common and critical machining operations, and Tool Supply Guy stocks one of the deepest holemaking catalogs available. We carry jobber-length drill bits, screw machine length drills, long-series drills, step drills, and core drills in high-speed steel, cobalt, solid carbide, and TiN/TiCN/TiAlN coated variants. Specialty types include left-hand drills, aircraft extension drills, and parabolic flute drills for deep holes and gummy materials. Counterbores (2, 3, and 4-flute piloted), countersinks (6-flute and single-flute), and combination drill-countersinks are stocked across inch and metric sizes. Reamers include hand, machine, chucking, and taper pin reamers in HSS and carbide. Annular cutters and hole saws are available for large-diameter applications. Point angles, coatings, and tolerance classes are clearly specified so you can match the right tool to your material and hole tolerance requirements. Suitable for CNC machining centers, drill presses, lathes, and hand-held power tools.