3/8" Cobalt Twist Drill Bits for Hard Metal

A 135-degree split point prevents the drill bit from 'walking' or wandering when you start a hole. This self-centering design ensures greater accuracy and eliminates the need for a center punch on most metals, making it ideal for precise starts on hard, smooth surfaces in metal fabrication.

Yes, our 3/8" cobalt twist drill bits feature standard shanks that are fully compatible with most corded or cordless drills and drill presses using a standard chuck. They offer versatility for both machine shop equipment and handheld power tools in various metalworking applications.

A jobber bit is a standard-length twist drill for general-purpose drilling of a single hole size. A step point bit has multiple cutting diameters on one shank, allowing you to drill various hole sizes without changing bits, which is especially useful for sheet metal work and enlarging existing holes.

Absolutely. Our M35 cobalt drill bits are specifically engineered for drilling hard metals like stainless steel. The cobalt alloy provides the necessary heat resistance and durability to cut through stainless steel effectively, offering longer tool life and cleaner holes than standard high-speed steel bits.

To maximize tool life, use an appropriate drilling speed and steady pressure, avoiding excessive force. Applying a quality cutting fluid or lubricant is crucial to reduce heat and friction. Always clean the bits after use and store them in a dry place to prevent corrosion and damage.

Yes, we provide competitive volume and bulk pricing for our industrial clients, including machine shops and fabrication facilities. Please contact our sales team through the form on this page to discuss your specific quantity requirements, and we will provide a customized quote to meet your needs.