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3016016 1/4IN X 4IN Jobber Bit Cobalt High Speed Steel Length Drill Bit

PART 301779
SUPPLIER IRWIN TOOLS
SUPPLIER PART # 3016016
RANK A
SHELF PACK 3
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About this item

Irwin 3016016 – 1/4" x 4" Jobber-Length Cobalt High-Speed Steel Drill Bit:

Key Features

  • Made from M35 cobalt high-speed steel (5% cobalt) for superior heat and abrasion resistance
  • 135° split-point tip starts drilling immediately and eliminates walking
  • Gold oxide finish enhances lubricity and corrosion resistance
  • Heavy-duty web construction increases strength and reduces breakage
  • Jobber length design offers a balance of reach and rigidity
  • Straight shank fits standard drill chucks
  • Right-hand cutting direction
  • Precision-ground spiral flutes for efficient chip evacuation
  • ANSI compliant for dimensional accuracy and consistent quality

Specifications 

  • Part Number: 3016016
  • Drill Size: 1/4 inch
  • Decimal Equivalent: 0.2500"
  • Flute Length: 2-3/4 inches
  • Overall Length: 4 inches
  • Material: M35 Cobalt High-Speed Steel
  • Finish: Gold Oxide
  • Point Angle: 135° split point
  • Shank Type: Straight
  • Flute Type: Spiral
  • Cutting Direction: Right-hand
  • Drill Bit Type: Jobber-length
  • Standard Compliance: ANSI

Applications

  • Ideal for drilling:
    • Hardened steel
    • Stainless steel
    • Cast iron
    • Titanium
  • Also suitable for:
    • Mild steel
    • Aluminum
    • Brass and copper
    • Plastics and composites
  • Commonly used in:
    • Metal fabrication
    • Automotive and aerospace repair
    • Maintenance and repair operations (MRO)
    • General-purpose industrial drilling

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Length 4 Inch
Brand Irwin
Diameter 1/4 Inch
Drill Size - Fraction 1/4 in
Flute Length 2-3/4 in
Flute Type Spiral
Height 200
Length 720
Number of Flutes 1
Overall Length 4 in
Pack Qty 1
Point Angle 135 deg
Point Type Split
Series 3016/631
Shank Diameter 1/4 in
Shank Length 1-1/4 in
Shank Type Straight
Weight 1
Width 200
UPC Code 736088301776
Shelf Pack 3
Minimum Order Qty 1