Brand: RUKO Item: Drill bit For Use With: RUKO 106210, 106209, 106202 and 106201 arbor assemblies Replacement: Yes Material: 5% cobalt high-speed steel (HSSE-Co5) Application: Hole cutting Finish: Golden brown Overall Length: 3.3in (84mm) For Use On: Steel, brass, plastic, stainless steel, bronze, cast iron and aluminum Drill Bit Type: Pilot Drill Bit Size: 1/4in Point Cut: Split Shank Type: 1/4in diameter 3-surface RUKO pilot drill bit, replacement, 1/4in, split point, 5% cobalt high-speed steel (HSSE-Co5), golden brown finish, 1/4in diameter 3-surface shank. For use with RUKO 106210, 106209, 106202 and 106201 arbor assemblies.