Disston 286237 Master Mechanic 17/64 Inch By 4-1/8 Inch M7 Titanium Nitride Coated Drill Bit

17/64 inch x 4-1/8 inch, high speed steel, titanium coated drill bit, 135 split point, jobber length, straight shank, 135 split point design with 4 cutting edges eliminates walking & permits quick accurate starting, added lubricity of titanium-nitride surface finish enhances chip flow, drilling efficiency & increases drill life, recommended for heavy duty drilling in wood, plastic, wallboard, plywood & soft metals & for moderate use in heat treated or ferrous metals, carded.