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#15 x 12" Cobalt Aircraft Extension Drill Bit - High Performance & Durable Cutting Tool | Drill AmericaCobalt drill bits are are effective in drilling tough, high tensile strength materials such as cast iron, inconel, stainless steel and titanium. They display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steel. They have a 135 split point tip for fast penetration and accurate drilling. Compared to a conventional 118 degree tip, these drills wont go "walking" on you. Ideal for drilling where extra length

making it an essential tool for quality control and compliance testing across various industries

Why Choose Drill America - 3/8-32 UNS HSS Tap Set

High speed steel hex dies are for re-threading "or cleaning" bruised or rusty threads or making new threads

Why Choose Drill America - 4-8 UNS HSS Bottoming Tap

Get the Drill America - 1-13/16-12 UNS HSS Taper Tap and experience the perfect combination of performance and protection for your professional needs

Enhance your safety and performance with the Drill America - 3-1/2-4 UNS HSS Taper Tap

impact-resistant materials

Size: 2"-20

Why Choose Drill America - 5/8-11 UNC HSS Left Spiral Point 3 Flute Tap

Ideal for welding professionals and industrial users

Choose the Drill America - 6 x 1/4 x 1-1/4 HSS Metal Slitting Saw for unmatched reliability and performance

Choose the Drill America - 5/16-48 UNS HSS Taper Tap for unmatched reliability and performance