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All Products  ➞ Bordo ➞ Drills ➞ Jobber ➞ Black Finish HSS ➞ Metric Hang Sell

      

11.5mm Black HSS Jobber Drill - Clam

Part Number:2003-11.50S
Brand:Bordo
Sub Brand:Black Knight
Barcode:9326518188568
Pack Qty:1
Pack Type:Hang Sell
Packaging:Clam
Feed per revolution mm:0.22
Spindle Speed Aluminium/Brass RPM:1735
Spindle Speed Cast Iron RPM:683
Spindle Speed Free Cutting Steel RPM:1223
Spindle Speed Malleable Iron RPM:768
Spindle Speed Med. Carbon Steel RPM:853
Spindle Speed Stainless Steel RPM:341
Spindle Speed Tool Steel RPM:512
Spindle Speed Wood/Plastic RPM:2588
Diameter (mm):11.50
Flute Length (mm):94
OAL (mm):142

About this item:
  • 11.5mm Black HSS Twist Drill - Clam
  • Bordo Black Knight M2-HSS Twist Drills.
  • DIN338
  • 118° Split Point (crankshaft point)
  • Split point is self centering and reduces the need for end thrust.
  • Friction at workpiece is reduced.
  • 118° point angles are ideal for use in materials such as mild steel and cast iron.
  • The 118° point creates easily controlled chips which are wide and thin.
  • 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.