Airgas - V0549670 - Viking® Type 643-UB 8 mm X 4 1/2" Black And Gold Oxide Hi-Molybdenum Tool Steel Ultra Bor Super Premium Jobber Length Drill Bit With Straight Shank And 3 3/16" Spiral Flute (5 Per Pack)

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Viking® Type 643-UB 8 mm X 4 1/2" Black And Gold Oxide Hi-Molybdenum Tool Steel Ultra Bor Super Premium Jobber Length Drill Bit With Straight Shank And 3 3/16" Spiral Flute (5 Per Pack)

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Airgas Part #:V0549670

Manufacturer Part #:49670

$NA.NA /NA

Each

Enter multiples of 5 Each

Viking® Type 643-UB 8 mm Dia X 4 1/2" Black/Gold Ultra Bor Super Premium Jobber Length Drill Bit with straight shank is made of Hi-molybdenum tool steel. Drill bit with 3 3/16" spiral flute maintains sharpness and has capacity to withstand higher drilling temperatures. Heavy-duty bit has 135 deg split point for accurate starting and fast penetration without a center punch. It is used for hard drilling applications and for work hardening grades of stainless steel. It meets NAS 907B standard and is sold as 5 per pack.

Provides fast penetration and accurate starting without a center punch
Withstands substantially higher drilling temperatures while maintaining sharpness
Special hi-molybdenum tool steel
Precision ground point, flutes, body, clearance and drill diameter for the ultimate in accuracy and performance
Body and clearance are gold surface treated for maximum lubricity
Drills are heat treated at 2185° F and then nitro-carburize finished at 950° F to be measurably harder than high speed steel
Space age nitro-carburized steel withstands substantially higher drilling temperatures while maintaining sharpness

Drill Diameter

» 8 mm

Brand Name

» Type 643-UB

Drill Material

» Hi-Molybdenum Tool Steel

Flutes

» Spiral

Drill Coating

» Black And Gold Oxide

Shank Style

» Straight

Drill Type

» Jobber Length Drill Bit

Overall Length

» 4.5 in

Flute Length

» 3 3/16"