Irwin

Irwin 63128 Jobber Drill Bit, 7/16 in Dia, 5-1/2 in OAL, Spiral Flute, 7/16 in Dia Shank, Cylinder Shank, Pack of 6

Our Item #: VORG6009815 UPC: 042526631283
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$42.97 $59.70you save $16.73
High-speed steel with M-35, 5% cobalt, for higher heat and abrasion resistance; heavy-duty web construction for strength and durability. Split point begins drilling immediately, minimizing bit walk when used in applications such as metal drilling, including heavy-duty abrasive alloy metal drilling on hardened steel (heat-treated).⁠­
Unit: EA
UPC: 042526631283
Model Number: 63128
Irwin 63128 Jobber Drill Bit, 7/16 in Dia, 5-1/2 in OAL, Spiral Flute, 7/16 in Dia Shank, Cylinder Shank, Pack of 6
$42.97$59.70

  • Constructed of M-35 5% cobalt high-speed steel for super abrasive resistance in tough metals
  • Heavy-duty spiral flute design produces faster chip ejection
  • Shorter cutting lips reduce torque for drilling in high tensile strength materials
  • 135 deg split point reduces feed pressure for easier penetration without work hardening and tip point ensures a true start and eliminates bit walking

  • Applicable Materials: Hard Steel Stainless Steel Titanium
  • Cutting Direction: Clockwise
  • Diameter: 7/16 in
  • Finish: Gold Oxide
  • Flute Length: 4-1/16 in
  • Flute Type: Spiral
  • Grade: M35
  • Material: Cobalt HSS
  • Overall Length: 5-1/2 in
  • Point Angle: 135 deg
  • Point Type: Split
  • Shank Diameter: 7/16 in
  • Shank Length: 1-4/9 in
  • Shank Type: Cylinder