2501-8.50, 8.5mm, HSS Long Series Drill

2501-8.50, 8.5mm, HSS Long Series Drill

Description: HSS Long Series Drill

Brand: Bordo

Material: High Speed Steel (HSS)

Diameter D: 8.5mm

Flute Length: 109mm

Overall Length: 165mm

MPN: 2501-8.50

Quantity Per Package: 10 pieces

Feeds per revolution: 0.17mm

Spindle Speed Aluminum / Brass: 2286 RPM

Spindle Speed Cast Iron: 899 RPM

Spindle Speed Free Cutting Steel: 1611 RPM

Spindle Speed Malleable Iron: 1012 RPM

Spindle Speed Med. Carbon Steel: 1124 RPM

Spindle Speed Stainless Steel: 450 RPM

Spindle Speed Tool Steel: 674 RPM

Spindle Speed Wood / Plastic: 3410 RPM

SKU: 2501-8.50 Category: Tags: , , Brand:

Description

About this item:
  • 8.5mm HSS Long Series Drill
  • ANSI B94-11
  • 118° chisel point with 30° helix.
  • Chisel point is suitable for general purpose drilling.
  • Black Finish Twist Drills (also called blue finish) achieve their distinctive colour by steam tempering, a thermal process resulting in a porous tool coating.
  • This surface helps to keep lubricant on the tool, particularly important on the cutting edges, thus reducing friction and cold welding. The result is increased tool life.
  • Black finish tools are generally recommended for ferrous applications where the oxide layer aids chip flow and heat dissipation.

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