Jobber Drill Bit 9/32'' x 4-1/4'' Cobalt High-Speed Steel - IRWIN 3016018 (5-PK) The Irwin 3016018 jobber-length drill bit is a high-performance, cobalt-enhanced HSS (High-Speed Steel) cutting tool engineered for drilling tough, abrasive metals ? including stainless steel, cast iron, titanium, and heat-treated alloys. Measuring 9/32 inch in diameter with a 4-1/4 inch overall length and 2-15/16 inch flute length, this bit features a 135-degree split point that ensures immediate, accurate penetration without ?walking,? delivering clean, precise holes even in hardened materials. The single spiral flute and right-hand cutting direction optimize chip evacuation and reduce binding during deep or continuous drilling. Coated in gold oxide for enhanced heat resistance and lubricity, the bit withstands high temperatures generated during metal drilling ? extending tool life and maintaining sharpness under heavy-duty use. Built with a heavy-duty web construction and M35-grade cobalt steel (5% cobalt), it offers superior strength, abrasion resistance, and durability compared to standard HSS bits. The 9/32-inch straight shank fits securely in drill chucks, drill presses, or magnetic bases for maximum torque transfer. Packaged carded for easy storage and weighing just 0.1 lbs, it?s ideal for machinists, fabricators, automotive technicians, and serious DIYers who demand professional-grade performance in demanding metalworking applications. Features - 9/32-inch diameter cobalt HSS drill bit ? ideal for stainless steel, cast iron, titanium, hardened alloys - 135 split point ? eliminates bit walking and ensures true, accurate hole starts - Gold oxide coating ? reduces friction, dissipates heat, and extends cutting life - M35 cobalt steel (5% cobalt) ? superior heat and abrasion resistance for heavy-duty metal drilling - Heavy-duty web construction ? increases rigidity and prevents deflection under load - Jobber-length design ? 4-1/4? OAL, 2-15/16? flute ? balances reach and strength for deep holes - Single spiral flute + right-hand cut ? efficient chip removal and reduced binding - Straight shank (9/32?) ? secure fit in standard chucks and drill presses - Weighs 0.1 lbs ? lightweight yet robust for extended use - Made by Irwin ? trusted for precision, durability, and innovation in cutting tools Specifications - Brand Name: Irwin - Model: Irwin 3016018 - Part Number: 3016018 - UPC: 024721067074 - Alternative UPC: 042526633188 - Product Type: Jobber Drill Bit - Material: Cobalt HSS (M35 Grade, 5% Cobalt) - Finish: Gold Oxide - Drill Diameter: 9/32 inch - Point Angle: 135 Split Point - Shank Type: Straight (9/32 inch diameter) - Overall Length: 4-1/4 inches - Flute Length: 2-15/16 inches - Shank Length: 1-1/3 inches - Number of Flutes: 1 - Flute Type: Spiral (Right-Hand Cut) - Cutting Direction: Right Hand - Point Type: Split - Applicable Materials: Stainless Steel, Cast Iron, Titanium, Hardened Steel - Impact Driver Compatible: No - UNSPSC: 27112801 - Item Weight: 0.1 lbs - Packaging Type: Carded - Number in Package: 1 - Manufacturer: Black Decker US Inc (Stanley Black Decker) - Country of Origin: China Product Application The Irwin 3016018 drill bit is engineered for professionals and advanced users tackling demanding metal drilling tasks ? from automotive repair and machinery maintenance to fabrication and industrial assembly. Its cobalt-enhanced composition and split-point geometry make it ideal for penetrating hardened or abrasive metals without dulling or wandering. Whether drilling mounting holes in stainless brackets, modifying cast iron components, or working with aerospace-grade alloys, this bit delivers consistent, clean results with minimal effort. A high-value, long-lasting tool that outperforms standard HSS bits ? making it an essential addition to any serious metalworking toolkit.