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Product Number: 2010-5/16 5/16" HSS Cobalt Jobber

Product Attributes
Packaging   bulk
Diameter (mm)   7.94
Diameter (inch)   5/16
Flute Length (mm)   81
Overall Length (mm)   114
Pack Quantity   5
 
Technical Data
Spindle Speed Stainless Steel RPM   578
Spindle Speed Tool Steel RPM   866
Spindle Speed Cast Iron RPM   1155
Spindle Speed Malleable Iron RPM   1300
Spindle Speed Med. Carbon Steel RPM   1444
Spindle Speed Free Cutting Steel RPM   2070
Spindle Speed Aluminium/Brass RPM   2936
Spindle Speed Wood/Plastic RPM   4380
Feed per revolution mm   0.21
 

9326518036869Bar Code No.

 

 Product Information

Cobalt Jobber Drill have a Bronze Finish (gold oxide). This metallic brown coloured low temperature temper treatment is used on cobalt tools for identification purposes. Cobalt HSS drills are extremely hard and provide superior performance and increased tool life especially in stainless steel and high tensile steel.


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