Irwin® 91155ZR Jobber Length Reduced Shank Drill Bit, 55/64 in Drill - Fraction, 0.8594 in Drill - Decimal Inch, 1/2 in Shank, M7 HSS

91155ZR MFG #: 91155ZR
$53.88 / EA
Estimated Delivery 7 to 10 Business Days
  • Manufacturer: Stanley Black & Decker
  • Type: Jobber Length
  • Series: 911
  • Drill Size - Fraction: 55/64
  • Drill Size - Decimal Inch: 0.8594
  • Overall Length: 6
  • Cutting Depth: 3
  • Number of Flutes: 2
  • Flute Type: Regular Spiral
  • Flute Length: 3
  • Shank Size: 1/2
  • Shank Type: 3-Flat/Straight
  • Point Angle: 118 deg
  • Point Type: Conventional
  • Cutting Direction: Right Hand
  • Cutting Edge Material: M7 HSS
  • Material: M7 HSS
  • Finish: Black Oxide
  • Applicable Materials: Aluminum, Brass and Copper, Wood/Drywall, Sheet Metal, Mild Steel, Cast Iron and Plastic
  • Brand: Irwin®
Irwin® Reduced Shank Drill Bit, Jobber Length, Series: 911, 55/64 in Drill - Fraction, 0.8594 in Drill - Decimal Inch, 6 in Overall Length, 3 in Cutting Depth, 2 Flutes, Regular Spiral Flute, 3 in Flute Length, 1/2 in Shank, 3-Flat/Straight Shank, 118 deg Point, Conventional Point, Right Hand Cutting Direction, M7 HSS Cutting Edge, M7 HSS, Black Oxide, Applicable Materials: Aluminum, Brass and Copper, Wood/Drywall, Sheet Metal, Mild Steel, Cast Iron and Plastic
  • Constructed of M-2 high speed steel for the best combination of strength, heat resistance and wear r
  • Black oxide/gold provides a polished finish and prevents chip building, galling and welding on a wor
  • It is commonly used in several applications on low carbons, stainless steel and iron based ferrous m
  • Round shanks with flats are ground flat on three sides for increased chuck grip, reducing slippage a
  • They are used with portable drills and drill presses on ferrous and non-ferrous materials
  • 3-flatted shank design provides better chuck grip and reduces slippage
  • Ideal for use in keyless chucks
  • All Silver & Deming bits are 6 in long and feature a 1/2 in reduced shank that fits all 1/2 in drill
  • 1/2 in reduced shank with 3-flats grips securely
  • Standard 118 deg point for use in wood, metal and plastic
  • 118 deg conventional point is not self centring
  • Best for stationary drills
  • Performs better in softer materials vs hard metal
Constructed of M-2 high speed steel for the best combination of strength, heat resistance and wear resistance
Black oxide/gold provides a polished finish and prevents chip building, galling and welding on a workpiece
It is commonly used in several applications on low carbons, stainless steel and iron based ferrous metals
Round shanks with flats are ground flat on three sides for increased chuck grip, reducing slippage and help centering the drill in the chuck
They are used with portable drills and drill presses on ferrous and non-ferrous materials
3-flatted shank design provides better chuck grip and reduces slippage
Ideal for use in keyless chucks
All Silver & Deming bits are 6 in long and feature a 1/2 in reduced shank that fits all 1/2 in drills
1/2 in reduced shank with 3-flats grips securely
Standard 118 deg point for use in wood, metal and plastic
118 deg conventional point is not self centring
Best for stationary drills
Performs better in softer materials vs hard metal