Dormer A777 HSS-E Cobalt Jobber 4mm Pack of 10 A7774.0
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Dormer A777 4.00MM HSCo Heavy Duty Jobber Drill | £7.29 |  | |||
Dormer A777 HSS-E Cobalt Jobber Drill Bits 4mm Pack of 10 A7774.0 | £48.95 |  | |||
| £48.95 |  | ||||
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: 4mm • Overall Length: 75mm • Quantity: 10
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