SKU: 19515108813

Dormer A777 HSCo Heavy-Duty Jobber Drill 4.50mm OL:80mm WL:47mm

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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14

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Description

Dormer A777 HSCo Heavy-Duty Jobber Drill 4.50mm OL:80mm WL:47mmA777 Metric Cobalt Jobber Drill Bits have a heavy duty, 135 split point for use when greater heat is generated during drilling, e. g on higher tensile tougher materials and in particular the Aerospace Industry. Specification Flute Geometry: Standard Helix, Right hand spiral, Thick Web Point Angle: 0. 30 mm 0. 95 mm 118 Conical point 1. 00 mm to 1. 40 mm inclusive 135 4 facet point 1. 50 mm and above 135 split point sizes (Split point geometry to NAS

A777 Metric Cobalt Jobber Drill Bits have a heavy-duty, 135° split point for use when greater heat is generated during drilling, e.g on higher tensile tougher materials and in particular the Aerospace Industry.

Specification

Flute Geometry: Standard Helix, Right hand spiral, Thick Web
Point Angle:
0.30 mm - 0.95 mm 118° Conical point
1.00 mm to 1.40 mm inclusive 135° 4 facet point
1.50 mm and above 135° split point sizes (Split point geometry to NAS 907 Aerospace Specification type P3 Point)

Surface Treatment: Bronze
Material: HSCo Cobalt steel

DIN 338 RN / BS328 / ISO 235

Tip diameter: 4.50mm
Working length: 47mm.
Overall length: 81mm.

Shipping Notes
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Exchange/Return Notes
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SKU: 19515108813

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Arlin Metzler
Waukegan, US
★★★★★ 1
Chinese junk
Number of Items: 4, Style: SILZKAR7B11
Chinese junk zero stars but that’s not an option
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Reviewed in the United States on May 9, 2026
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Alonzo Olivarri
Houston, US
★★★★★ 5
Worth it
Exactly what I needed and worked well. Good quality
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Reviewed in the United States on December 24, 2025
C
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Colleen
Whiting, US
★★★★★ 5
Fits like oem
Fits like oem. The product itself is very durable.
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Reviewed in the United States on April 2, 2025
F
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Freedom
Waukegan, US
★★★★★ 5
Works for my kids BMW
I bought this as a gift for my stepson he has a BMW with a ridiculously complicated oil changing process and this wrench helped him out a lot he was pretty happy with it.
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Reviewed in the United States on August 25, 2025
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Thomas Long
Natrona Heights, US
★★★★★ 5
Works great!
Worked liked a charm on my son's bmw 3 series.
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Reviewed in the United States on September 17, 2025

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