SKU: 5666483260

Dormer A777 HSCo Heavy-Duty Jobber Drill 4.80mm OL:86mm WL:52mm

Sale price$14.39 Regular price$15.99
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Description

Dormer A777 HSCo Heavy-Duty Jobber Drill 4.80mm OL:86mm WL:52mmA777 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: 4.80mm
Working length: 52mm.
Overall length: 86mm.

Shipping Notes
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Exchange/Return Notes
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SKU: 5666483260

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tjw
Belleville, US
★★★★★ 3
Way too narrow
Size: 9.5 Wide, Color: Burgundy Polished Full Grain
I ordered a wide in this shoe, but it was still way too narrow. I had to return them. Otherwise, it looked like a nice quality shoe.
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Reviewed in the United States on February 12, 2026
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BetterEveryDay
Draper, US
★★★★★ 5
I usually wear 11.5's, but I buy 1/2 size smaller to accommodate for stretch. Leather relaxes.
Size: 11, Color: Burgundy Polished Full Grain
5 STARS: These shoes are awesome. I keep coming back for more. I have major foot problems, have tried all kinds of shoes, orthotics, and inserts... but believe it or not, these shoes work better than any of that stuff. I wear them daily. I buy lots of them, for home, for church, and I'm getting my first pair of J&M boots today, for winters in Indiana... Brrrr
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Reviewed in the United States on December 18, 2025
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Doc
Carnegie, US
★★★★★ 5
Great price great shoe
Size: 12, Color: Burgundy Polished Full Grain
Excellent shoe. Tried the Sebago penny loafer and the sizing was ridiculous. These J and M are sized perfectly. I’ve had them before and they wear like iron. Very comfortable right out of the box.
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Reviewed in the United States on May 23, 2026
R
Verified Purchase
roger mendes
Cuba, US
★★★★★ 5
One of the best shoes
Size: 9.5, Color: Black Polished Full Grain
Outstanding. Fashionable, most comfortable and good construction. No sines of use after quite some time. Highly recommended.
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Reviewed in the United States on March 21, 2026
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xyz
Dallas, US
★★★★★ 4
Quality shoe but with a slight squeak.
Size: 10 Wide, Color: Burgundy Polished Full Grain
Nice shoes with the classic Penny Loafer design. Fit was better than another brand I tried. Only reason not 5 starts is disappointment due to a slight squeak at times when walking.
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Reviewed in the United States on August 11, 2025

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