Drill America 3/8" Cryogenic Treated HSS Black & Gold KFD Split Point Jobber Length Drill Bit | CRYKFDPRO3/8

Meets the requirements of Ford

Product Overview

The Drill America 3/8" Cryogenic Treated HSS Black & Gold KFD Jobber Length Drill Bit (SKU/MPN: CRYKFDPRO3/8) is a heavy-duty, industrial-grade cutting tool engineered for demanding metalworking applications. Part of the KFD (Killer Force Drill) series, this bit is manufactured from M2 premium-grade high-speed steel (HSS) and undergoes an intensive cryogenic treatment process where it is frozen to -300°F for 48 hours.

This deep-freeze thermal processing fundamentally alters the metallurgy of the steel, increasing its surface hardness to 70 Rockwell C to significantly reduce breakage, chippage, and premature wear. Engineered to cut faster, last longer, and produce smoother holes than standard drill bits, it serves as a cost-effective alternative to cobalt bits when drilling tough alloys and 300/400 series stainless steel.

Key Features

• Cryogenic Treatment: Deep-frozen at -300°F for 48 hours to dramatically increase tool life, wear resistance, and structural stability, achieving a hardness rating of 70 Rockwell C.

• M2 Premium HSS Construction: Crafted from high-grade M2 high-speed steel for exceptional durability and cutting efficiency.

• 135-Degree Split Point: Self-centering point geometry starts drilling immediately on contact without walking or wandering across the workpiece.

• 3-Flat Shank: Features three precision-machined flats on the shank to eliminate bit slipping and spinning inside drill chucks under high torque loads.

• Black & Gold Surface Treatment: Specialized finish formulated specifically for drilling stainless steel and hard metals, aiding in lubricity and heat reduction.

• Cobalt Alternative: Delivers high-performance cutting capabilities that allow it to be used in place of traditional cobalt drill bits when machining abrasive stainless steels.

Technical Specifications

Ideal Use Cases & Compatible Materials

The Drill America KFD Cryogenic bit is tailored for high-stress drilling across a broad spectrum of hard metals and alloys:

• Stainless Steel: Specifically engineered to tackle abrasive 300 and 400 series stainless steel without rapid edge dulling.

• Ferrous & Non-Ferrous Metals: Excels in cutting alloy steel, carbon steel, tool steel, spring steel, aluminum, brass, and bronze.

• High-Torque Applications: The 3-flat shank makes it ideal for use in cordless drills, drill presses, and magnetic drill chucks where positive grip is required to prevent rotational slipping.

Common Questions (FAQs)

Q: What does "cryogenic treatment" do to a drill bit?
A: Cryogenic treatment involves exposing the M2 high-speed steel to temperatures of -300°F for 48 hours. This process completes the martensitic transformation of the steel, relieving internal stresses and refining the grain structure. The result is a drill bit with an overall surface hardness of 70 Rockwell C that resists micro-chippage, heat fatigue, and breakage significantly better than untreated bits.

Q: Why is a 3-flat shank beneficial? 
A: Standard round-shank drill bits can slip or spin inside a 3-jaw drill chuck when encountering heavy resistance or high torque. The 3-flat shank provides three flat contact surfaces for the chuck jaws to grip securely, eliminating bit slippage and maximizing power transfer from the tool to the cutting edge.

Q: Can this bit really be used instead of a cobalt drill bit?
A: Yes. Due to its M2 premium steel base, 135-degree split point, and cryogenic hardening (reaching 70 Rockwell C), this bit can be used in place of cobalt drill bits for drilling tough materials like 300 and 400 series stainless steel while providing smoother cuts and exceptional longevity.

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