Irwin 81128zr #28 High Speed Steel Wire Gauge Drill Bit, 2-7/8 In. Length

The Irwin 81128ZR #28 High Speed Steel Wire Gauge Drill Bit is a precision tool designed to drill exact-size holes for tapping applications where non-fractional hole sizes are required. This jobber-length drill bit is ideal for automotive work, maintenance and repair (MRO) operations, and general drilling tasks in both portable and stationary drill press applications.

Constructed from M-2 high-speed steel, this drill bit combines strength, heat resistance, and wear resistance to handle demanding drilling jobs. The straight shank design ensures compatibility with standard drill chucks for easy installation and reliable performance across most drill types.

Features and Benefits

• M-2 High Speed Steel Construction: Offers superior heat resistance and durability for extended tool life and reliable performance in repeated use.
• #28 Wire Gauge Size: Delivers precise, non-fractional hole sizing for tapping and applications requiring exact dimensions.
• Jobber Length (2-7/8 In.): Versatile length suitable for light to heavy-duty drilling tasks on portable and stationary drill press equipment.
• Straight Shank: Fits standard drill chucks for easy installation and compatibility with most drill types.
• Spiral Flute, 4-Flute Design: Engineered for drilling in automotive, MRO, and general applications.

Specifications

• Brand: Irwin
• Model: 81128ZR
• Bit Size: #28 Wire Gauge
• Diameter: 0.14 in.
• Overall Length: 2-7/8 in.
• Shank Type: Straight
• Shank Diameter: 0.14 in.
• Material: High Speed Steel (M-2)
• Flute Style: Spiral Flute, 4-Flute
• Type: Jobber Drill Bit