IRWIN Hanson TurboMax 73128 Jobber Length Drill Bit, 7/16", 135° Split Point

IRWIN Hanson TurboMax 73128 Jobber Length Drill Bit, 7/16", 135° Split Point

• The IRWIN 73128 TurboMax Jobber Length drill bit set includes six professional-grade 7/16" bits designed for high-performance metal drilling. This bit features a self-centering 135° split-point tip and durable high-speed steel construction with a black and gold oxide finish, making them ideal for working with stainless steel, alloy steel, and curved surfaces.
• Features:
  • 135° TurboMax split-point tip starts on contact and prevents walking
  • Spiral flutes for efficient chip evacuation and smooth drilling
  • Black and gold oxide coating enhances corrosion resistance
  • Three-flat shank prevents slippage in drill chucks
  • Jobber length design (5-1/2" overall, 4-1/16" flute length) for optimal reach
• Specifications:
  • SKU: 73128
  • Diameter: 7/16" (0.4375")
  • Overall Length: 5-1/2"
  • Flute Length: 4-1/16"
  • Material: High-Speed Steel (HSS)
  • Coating: Black and gold oxide
  • Point Angle: 135° TurboMax split point
  • Shank Type: Three-flat, Jobber length
  • Cutting Direction: Right-hand spiral
  • Applications: Suitable for stainless steel, curved surfaces, ferrous and non-ferrous metals
• The IRWIN Hanson 73128 drill bit can also be referred to as TurboMax 7/16 HSS bit, 135-degree split-point drill bit, black and gold jobber drill bit, and reduced walking metal drill bit.

IRWIN Hanson is a trusted manufacturer of high-performance drilling and threading tools. Known for innovations like the TurboMax split-point and anti-slip shank designs, IRWIN Hanson provides durable, precision-engineered solutions for industrial and professional users alike.

Q: How many drill bits are included in this pack?
A: This bulk pack includes 6 individual 7/16" TurboMax Jobber Length drill bits.

Q: What materials are these bits designed to drill?
A: These bits are engineered for use on stainless steel, alloy steels, curved surfaces, and other challenging metals.

Q: What is the advantage of the 135° TurboMax tip?
A: The TurboMax tip centers on contact and eliminates walking, allowing for faster, cleaner starts without a pilot hole.

Q: What is the total length of each bit?
A: Each bit is Jobber length, measuring 5-1/2" overall with a 4-1/16" flute length.

Q: Does the shank help prevent slippage?
A: Yes, the three-flat shank design offers a more secure grip in drill chucks, minimizing the risk of slippage during use.