Irwin Turbomax 19/64 in. X 4-3/8 in. L High Speed Steel Drill Bit Straight Shank

The Irwin Turbomax 19/64 in. x 4-3/8 in. L High Speed Steel Drill Bit with Straight Shank is a compact, reliable tool built to deliver clean, precise holes across a range of materials. Designed for steady performance in everyday workshop tasks, this bit combines durable construction with practical, user-friendly features.

• Drill size: 19/64 in
• Overall length: 4-3/8 in
• Flute length: 3-1/16 in
• Material: High Speed Steel (HSS)
• Shank type: Straight shank
• Packaging type: Carded
• Quantity in package: 1 piece
• Brand: Irwin Turbomax

Why this drill bit stands out: the combination of high-speed steel and a straight shank delivers dependable performance with broad chuck compatibility, making it a solid choice for standard drilling tasks in metal, wood, and plastics. The 4-3/8 inch overall length provides the reach you need for medium-depth holes, while the 3-1/16 inch flute length helps maintain efficient cutting and stable chip removal.

Ideal use cases

• Metalworking projects requiring precise, clean holes in steel, aluminum, or other alloys
• Woodworking tasks where a stable, straight drilling path is important
• General purpose drilling for home repairs, shop projects, and DIY builds

Practical tips for top results

• Secure the workpiece and, for metal, use a light cutting fluid or oil to extend bit life and improve chip evacuation
• Mark the drilling point and start with a center punch to prevent wandering
• Use a steady feed and moderate drill speed appropriate to the material to avoid overheating
• Periodically withdraw the bit to clear chips and prevent binding

This single-piece drill bit from the Irwin Turbomax line offers dependable performance for everyday tasks and more demanding projects alike. With its straight shank, robust high-speed steel construction, and precisely engineered dimensions, it’s a practical addition to any drill bit assortment.