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IRWIN® Series 30190 5/16" X 4 1/2" Black And Gold Oxide HSS Fractional Jobber Length Drill Bit With 3/16" 3-Flat Straight Shank And 3 3/16" Flute (Bulk Package)

Airgas Part #:VIS3019020B


Manufacturer #:3019020B


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$3.27 /Each
Package Size: 6 Each
$3.27 Each
$3.27 Each
$19.62 Carton 6 Each / Carton
$196.20 Case 60 Each / Case

In Stock

Item Details

  • IRWIN® Black And Gold HSS 5/16" Dia X 4 1/2" Fractional Straight Shank Jobber Length Drill Bit with 3 flattened shank of size 3/16" includes heavy-duty web construction for strength and durability. Drill bit with 3 3/16" twist length has a 135 deg split point that begins drilling immediately, minimizing bit walk. It provides accurate drilling without a center punch and has laser-etched markings for easy identification.


  • Laser-etched markings for easy identification
  • High speed steel features a black body and gold flute
  • Heavy duty web construction for strength and durability
  • 135° split point begins drilling immediately minimizing bit "walk"
  • 3-Flatted shank on 3/16" and above for better chuck grip
  • Provides accurate drilling without a center punch
  • Engineered with premium high speed steel with black and gold oxide coating for corrosion resistance


135° Split Point


  • Sheet Metal
  • Mild Steel
  • High Alloy Steel

Product Attributes

Drill Type

» Jobber Length Drill Bit

Drill Diameter

» 5/16"

Overall Length

» 4.5"

Shank Size

» 3/16"

Shank Style

» 3-Flat » Straight

Drill Material

» High Speed Steel

Drill Coating

» Black And Gold Oxide

Flute Length

» 3 3/16"

Trade Name

» Series 30190