THUNDERBOLT® Black Oxide Drill Bits

The THUNDERBOLT® Black Oxide Drill Bit – 3/16" delivers exceptional performance and durability for both professional tradespeople and DIY enthusiasts. Engineered with a thicker core for maximum strength, this drill bit resists bending and breakage even under heavy-duty use. The black oxide coating reduces friction and heat buildup, extending bit life and allowing for smoother drilling in metal, wood, and plastic. With its precision-ground tip, you can expect fast starts, clean holes, and reliable results every time.

Key Features: 

• Size: 3/16 inch (ideal for a variety of general-purpose drilling tasks)

• Durable Black Oxide Finish – Increases wear resistance and prevents corrosion

• Thicker Core Design – Reduces breakage and provides maximum strength

• Precision-Ground Tip – Ensures fast, accurate starts with minimal walking

• Versatile Use – Suitable for drilling in metal, wood, and plastic

• Reduced Friction – Allows cooler operation for extended tool life

• Professional Grade – Built to handle heavy-duty job site conditions