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Ships within 48 hours · Estimated delivery Sep 5 - Sep 10
Bearing Model: NTA1828
They produce a smooth finish on the workpiece
Numbers of Flutes: 3 Flutes
Size: 38*19*28mm
3pcs 14mm Nitride Titanium Coated High Speed Steel (HSS) 4341 Twist Drill Bits 4mmx8mmx3mm Bearing Model: NTA18284341 high speed steel contains high content of carbon and alloy elements, providing excellent cutting performance, high heat resistance, high hardness, wear resistance and durability. Suitable for applications requiring precise and efficient processing. Black nitride and gold titanium dual coatings can apply lubricant better for smoother drilling and are more durable and corrosion resistant. Large spiral grooves facilitate the export of metal chips,
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