DORMER
Dormer A777 HSCo Heavy-Duty Jobber Drill 4.20mm OL:75mm WL:43mm A7774.2
Model A7774.2
Best price
Lowest we’ve seenWhere to buy
| Retailer | Price | Availability | Visit |
|---|---|---|---|
| Cheapestchecked an hour ago | £11.02 | In stock | Visit Blueperry agriculture (UK) (opens in a new tab) |
 retailer's price from 16 Jul 2026 | £11.71 | In stock | Visit Blueperry Tool & Builders Merchants (UK) (opens in a new tab) |
 checked 2 hours ago | £56.95£133.20 | In stock | Visit Tooled Up (opens in a new tab) |
Prices exclude delivery. We may earn a commission if you buy through these links, which never affects the ranking above — it is always cheapest first.
Price history
Full price historyThis is the lowest price we have recorded. If you were waiting for a drop, this is it.
About this product
The Dormer A777 drill bits are designed for both professional and industrial use, offering reliable performance in high-stress environments. The 135° split point design reduces walking and ensures precise drilling, while the HSS-E cobalt construction extends tool life and maintains sharpness longer, even at high temperatures. Constructed from high-speed steel with 8% cobalt, these drill bits offer exceptional hardness, heat resistance, and wear resistance, making them ideal for demanding applications.
Features & Benefits
- High speed cobalt steel
- Standard spiral flute design
- DIN338
- Bronze finish
- NAS907J
- Right hand rotation/cutting
- 135° point angle
Specifications
| Diameter | 4.2mm |
|---|---|
| Overall Length | 75mm |
| Quantity | 10 |
You might also be interested in
Similarly priced alternatives we compare across multiple retailers.
from
£11.03
2 retailers
from
£11.04
3 retailers
save £0.91
from
£10.99
3 retailers
save £3.96
from
£10.99
3 retailers
save £3.96
from
£10.99
3 retailers
save £3.96
Faithfull
Faithfull Professional Cobalt Jobber Drill Bit Pre Packed 10.5mm FAIPP1050COB
Model FAIPP1050COB
from
£10.99
3 retailers
save £0.96