IRWIN 15-Piece Cobalt Alloy Steel Drill Bit Set 63137 Fractional Straight Shank Jobber Length for Drilling Hardened Metal and Abrasive Materials Sanders #16-100 – 1/2" Mortising Bit

#16-100 – 1/2" Mortising Bit

6 cm) Overall Width 1

Specification Detail Model HBC-19B Electric Motor 115 Volt

pre-heat the hose cuff slightly with warm water

Finished with Freud's proprietary non-stick Perma-SHIELD coating

IRWIN 15-Piece Cobalt Alloy Steel Drill Bit Set 63137 Fractional Straight Shank Jobber Length for Drilling Hardened Metal and Abrasive Materials Sanders #16-100 – 1/2" Mortising BitConquer Hardened Steel: The Cobalt Drill Bit Set for Extreme Metalworking When high speed steel fails, you need **Cobalt**. This IRWIN 15 Piece Cobalt Alloy Steel Drill Bit Set (63137) is engineered with premium M 42 5% Cobalt Alloy Steel, providing **superior abrasive resistance** and high heat tolerance. This makes it the ideal solution for drilling into **hardened steel**, stainless steel, cast iron, and other tough, high tensile strength materials