7.70mm DIA Cobalt Drill for Stainless Steel

Sherwood  |  SKU: ZT4791986S
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The Sherwood range of HSS-Co heavy duty straight shank jobber drills offers durable and reliable cutting performance, boasting 5% cobalt alloy for enhanced strength and longevity in high-temperature, high-speed operations. These drills excel in drilling steels with tensile strength up to 1,400 N/mm, very hard bronze, stainless steels, as well as heat and acid-resistant steels. The cutting edges maintain sharpness for extended periods, minimising the need for frequent sharpening and maximising productivity, while also resisting corrosion effectively. Features and Benefits: Crafted with a 5% cobalt alloy, ensuring optimal performance at elevated speeds and temperature Capable of cutting metals with tensile strength up to 1,400 N/mm 135 point angle facilitates precise hole making and efficient cutting Extended cutting edge lifespan reduces the frequency of sharpening Excellent corrosion resistance enhances tool longevity Standards Manufacturing Standard: BS 328, DIN 338B Typical Applications Suitable for various cutting and drilling applications, including steel, bronze, stainless, and acid-resistant steels
Flute Type Spiral
Flute Construction Ground flutes
Standards Met BS 328 | DIN 338B
Web Thickness Strengthened
Point Angle 135\u00b0
Cutting Direction Right Hand
Finish/Coating Bronze Oxide
Flute Length 75mm
Number of Flutes 2
Drill Diameter Tolerance H8
Point Type Split Point
Drill Diameter Metric 7.7mm
Helix Type Normal Helix
Material Cobalt High Speed Steel
Overall Length 117mm
Coolant Delivery External
Shank Diameter Tolerance F11

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