Dormer A777 HSCo Heavy-Duty Jobber Drill 8.50mm OL: 117mm WL: 75mm

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: 5.80mm
Working length: 75mm.
Overall length: 117mm.

Royal Mail Tracked Standard

• £3.95 for orders under £50
• FREE on orders over £50

Royal Mail Express

• £5.95 for orders under £50
• £3.95 for orders over £50

Please note: Express delivery will only be available for certain products. Order before 2pm for guaranteed next-day delivery.*

RETURNS

- Easy Returns
- 30 days return policy

We offer a no-hassle 30-day return policy for refunds & exchanges. Returns & exchanges are valid for 30 days after the order has been fulfilled, provided it has not been used or fitted and is returned in its original packaging. For more information please visit our full returns page.