HSS-Co METAL TWIST DRILL BIT SET 10pcs/ 4.2mm

Made of hardened high-speed steel, cobalt finish.
Ground blade and tip for easy centering.
Spiral flute design reduces clogging and smooth chip evacuation.
Suitable for drilling alloyed and unalloyed steel, grey cast iron, non-ferrous metals and plastic.
Cylindrical shank compatible with three-jaw drill chucks.

Technical data:
Diameter: 4.2 mm
Quantity: 10 pcs

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