Dormer A777 HSCO cobalt heavy duty jobber drill bits.
Dormer A777 Cobalt drill bits have a bronze coating, are to DIN 338 standard, have a right hand spiral and a point angle of 135°. A777 Cobalt drill bits are for drilling higher tensile, tougher materials where greater heat is generated during machining, ideal for use in CNC & automated machines. Ground flutes and optimised helix for more efficient chip flow.
The A777 cobalt drills are availiable in 0.30 to 16mm.
Drill bit sets of the A777 are avaiable:
https://www.nestools.com/Products/drill-bit-set
We list the more popular sizes however if you cannot see the size you require please contact our sales team.
| Diameter | 4.2mm |
|---|---|
| Flute Length | 43mm |
| Overall Length | 75mm |
| MOQ | 1 |
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