Description
This ten-piece set contains jobber-style twist drill bits with a 3/8 inch (9.53 mm) diameter, supplied as a matched set for routine drilling work. The bits are made from M35 cobalt high-speed steel, a material commonly selected for drill bits used on harder ferrous materials as well as general workshop metals. The jobber-style proportions make the set appropriate for use in hand drills, drill presses and compatible powered drivers where a standard-length bit is required. Typical applications include preparing holes in metal sheet, mild steel, aluminium and some plastics, depending on material thickness and the drilling method used. The set is arranged as ten pieces of the same size, which may suit users who expect repeated use of one diameter or who prefer to keep spare bits available in a workshop. When selecting speed and feed, users should follow the recommendations applicable to the material being drilled and the equipment in use. The bits can be stored in a tool roll or bit case to keep them organised between tasks.
