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Guhring - 9.9mm 135° Cobalt Jobber Drill - Exact Tool & Supply

Guhring - 9.9mm 135° Cobalt Jobber Drill


Item #: 98841489
Brand: Guhring
Model #: 9010180099000

Features and Benefits

Cobalt is harder than high speed steel and provides better wear resistance. It is commonly used on high tensile alloys.
Bronze oxide, is a surface treatment that prevents chip building, galling and welding on the workpiece. It is commonly used on low carbons, stainless steel and ferrous metals.Increases lubricity.
Parabolic flutes are constructed with a wider flute shape for increased chip flow.
Product Specifications
Drill Bit Size (mm) 9.90
Drill Bit Size (Decimal Inch) 0.3898
Drill Point Angle 135
Drill Bit Material Cobalt
Drill Bit Finish/Coating Bronze Oxide
Flute Type Parabolic
Cutting Direction Right Hand
Shank Type Straight
Coolant Through No
Flute Length (mm) 87.00
Overall Length (mm) 133.00
Flute Length x Diameter Ratio 5xD
Point Type Split Point
Shank Diameter (mm) 9.90
Shank Length (mm) 46.00
Specification Designation DIN; NAS
Drill Point Length (mm) 87.00
Drill Bit Diameter Tolerance (mm) h8
Number of Flutes 2
Web Thinning Web-Thinned
Specification Number DIN 338; NAS 907 P3
Drill Bit Grade General Purpose
Series/List 1018
$32.04

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