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Guhring - 7.9mm 140° Solid Carbide Jobber Drill - Exact Tooling

Guhring - 7.9mm 140° Solid Carbide Jobber Drill


Item #: 81439184
Brand: Guhring
Model #: 9055110079000

Features and Benefits

Solid carbide provides better rigidity than high speed steel. It is extremely heat resistant and used for high speed applications on cast iron, nonferrous materials, plastics and other tough-to-machine materials.
FIREX is a multi-layer coating that combines the characteristics of universal applicability of TiN, the heat resistance of TiAlN and the shock resistance of TiCN. FIREX is a proprietary coating exclusive to Guhring, Inc.
Spiral flutes are constructed with a higher flute angle to remove chips more easily.
Product Specifications
Drill Bit Size (mm) 7.90
Drill Bit Size (Decimal Inch) 0.3110
Drill Point Angle 140
Drill Bit Material Solid Carbide
Drill Bit Finish/Coating FIREX
Flute Type Spiral
Cutting Direction Right Hand
Shank Type Straight
Coolant Through Coolant Through
Flute Length (mm) 53.00
Flute Length (Decimal Inch) 2.0866
Overall Length (mm) 91.00
Overall Length (Decimal Inch) 3.5827
Flute Length x Diameter Ratio 5xD
Point Type SU Point
Shank Diameter (mm) 8.00
Spiral Type Regular Spiral
Specification Designation DIN
Web Configuration Tapered
Drill Bit Diameter Tolerance (mm) 0.006 to 0.021
Web Thinning Web-Thinned
Specification Number DIN 6537L
Drill Bit Grade High Performance
Material Grade Submicron
Series/List 5511
$ 149.08

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