Black Oxide Drill Bits

Black oxide bits offer improved heat resistance, reduced friction, and better corrosion protection compared to uncoated bright HSS bits, extending tool life in general applications. However, for hardened metals or stainless steel, cobalt or carbide-tipped bits typically outperform black oxide due to greater hardness and heat tolerance.

Black oxide drill bits are commonly available in fractional sizing to cover standard drilling applications. Jobber length options provide versatility across a range of hole diameters, making them suitable for general metalworking, woodworking, and plastic fabrication tasks in industrial and workshop settings.

Black oxide drill bits are typically manufactured from High Speed Steel (HSS) that has been treated with a black oxide finish. This coating enhances the base HSS material by adding heat resistance and lubricity, helping the bit resist wear during extended or repetitive drilling operations.

Jobber length is the standard length-to-diameter ratio for general-purpose drilling, offering a balance of rigidity and reach. It's the most versatile option for typical shop and industrial applications, making it a reliable default choice unless your job requires unusually deep or shallow hole depths.

Black oxide bits can drill stainless steel in light-duty applications, but they wear faster than cobalt or carbide bits due to lower heat resistance. For frequent or heavy stainless steel drilling, upgrading to cobalt-alloy bits is recommended to reduce tool wear and improve cutting efficiency.

Volume pricing details vary by order size and application needs. Contact Buster's Industrial Supply directly, and our team, including sales representatives like Jeff, will work with you to provide competitive pricing tailored to your business's ongoing drill bit requirements.