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Product Number: 2000-29/64 29/64" Black HSS Jobber

Product Attributes
Packaging   bulk
Diameter (mm)   11.51
Diameter (inch)   29/64
Flute Length (mm)   106
Overall Length (mm)   143
Pack Quantity   5
 
Technical Data
Spindle Speed Stainless Steel RPM   332
Spindle Speed Tool Steel RPM   498
Spindle Speed Cast Iron RPM   664
Spindle Speed Malleable Iron RPM   747
Spindle Speed Med. Carbon Steel RPM   830
Spindle Speed Free Cutting Steel RPM   1190
Spindle Speed Aluminium/Brass RPM   1688
Spindle Speed Wood/Plastic RPM   2518
Feed per revolution mm   0.22
 

9326518001942Bar Code No.
 

 Product Information
Black Finish Jobber Drills (also called blue finish) acheive 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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