Jobber Length Drill Bits and Sets

This category features industrial-grade jobber length drill bits and comprehensive bit sets, representing the mechanical standard for general-purpose drilling across mid-range depth profiles. Characterized by an optimized length-to-diameter ratio where the flute length is approximately 9 to 11 times the drill diameter, these versatile bits deliver the ideal balance of structural rigidity, deep-hole reach, and efficient chip evacuation. The technical inventory includes individual bits and indexed sets fabricated from premium high-speed steel (HSS), cobalt alloys, and carbide-tipped substrates, often enhanced with titanium nitride (TiN) or black oxide coatings to reduce frictional heat and resist abrasion. Equipped with self-centering $135^{\circ}$ split points that eliminate walking on heavy-gauge plate steel, stainless steel, and cast iron, these bits ensure clean, burr-free entry. This professional collection provides machinists, maintenance technicians, and structural fabricators with the durable, high-feed drilling assets required to maintain repeatable hole tolerances in high-production shop environments.