3016129 Cobalt Drill Bit, 29/64 In. X 5-5/8 In., Straight Shank

The Irwin 3016129 is a jobber length cobalt drill bit designed for drilling through tough metals and steel. Built with a cobalt and high-speed steel (HSS) cutting edge, this bit delivers superior heat and abrasion resistance for demanding drilling applications. Whether you're performing automotive repairs, metal fabrication, or precision work on hardened steel and stainless steel components, this drill bit provides the durability and performance needed to tackle heavy-duty projects with confidence.

The straight shank design allows quick changes on standard drills. The 135-degree split point geometry is engineered to cut through metal, while the twisted flute design efficiently removes chips during drilling. This versatile bit balances strength with precision, making it an essential addition to any professional or DIY toolkit.

Features and Benefits

• Cobalt and HSS Cutting Edge: Superior heat and abrasion resistance for extended tool life and reliable performance on hardened steel, alloys, titanium, and stainless steel.
• Split Point Design: The 135-degree point angle is engineered for drilling metal efficiently.
• Twisted Flute: Efficient chip removal during drilling allows for smoother operations and faster hole completion.
• Straight Shank: Allows quick changes on standard drills for ease of use and versatility.
• Jobber Length: Measures 5-5/8 inches overall with a 4-3/16 inch flute length for various drilling applications.

Specifications

• Brand: Irwin
• Model: 3016129
• Diameter: 29/64 inch
• Overall Length: 5-5/8 inches
• Flute Length: 4-3/16 inches
• Flute Type: Twisted
• Shank Type: Straight
• Point Type: Split, 135 degree
• Cutting Edge Material: Cobalt, HSS
• Cutting Direction: Right Hand
• Applicable Materials: Metal, Steel
• Quantity: 1 piece