Drillco 400NW29 Nitro Heavy Duty Jobber Drill Set 1/16″ – 1/2″

Drillco 400NW29 Nitro Heavy Duty Jobber Drill Set 1/16″ – 1/2″

The Drillco 400NW29 Nitro Heavy Duty Jobber Drill Set 1/16″ –  1/2″ includes:

• 29 Drill Bits in sizes:
  • • • 1/16″ to 1/2″ by 64ths
• Plastic Drill Pall Container

Features:

• Product no. 350NW29
• Size Type: Fractional
• Size: 1/16″ to 1/2″ by 64ths
• Plastic Drill Pall container
• 29-Piece heavy-duty jobber drill set
• Nitro heavy duty 135 degree split point drill
• Nitride surface treatment:
  • Gives a hard, protective layer to the drill
  • Increases hardness without increasing brittleness
  • Measurably harder than High-Speed Steel
• Body and clearance:
  • Black and Gold surface treated for maximum lubricity
• Recommended for use in:
  • Stainless steel
  • Other hard metal drilling
• High-speed steel drill bits:
  • Good for most general purpose applications
  • Offer a combination of hardness and toughness for wear resistance
• Black oxide treatment:
• Adds lubricity
• Creates small pockets on the surface of the tool that act to hold coolant near the cutting edge
• Gold oxide:
  • A thinner oxide surface treatment than black oxide
  • Typically used to identify cobalt steel tools
  • Performance is similar to uncoated tools
  • Round shanks allow use with a wide variety of toolholding systems
• When run in a counterclockwise direction (right-hand cut):
  • Spiral fluted tools evacuate chips up and out of the cut to reduce clogging

Specifications:

• Size Type: Fractional
• Size: 1/16″ to 1/2″ by 64ths
• Drill Point Angle: 135°
• Tool Material: High Speed Steel
• Finish Coating: Black & Bronze
• No. of Pieces: 29
• Cutting Direction: Right Hand
• Point Sharpening Type: Split Point
• Drill Type: Mechanics Length
• Flute Shape: Standard Spiral, Helical Flute

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