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● Ultra precision head with an adjustable amount of microns
Special handling of cutting edge
Ultra-fine cemented carbide
Apply to Ф200-Ф550mm aperture finishing
G-D938-A20C 20D Internal Coolant Twist Deep Drill for Steel 20D Specification:G-D938-A20C-0700 ● Ultra precision head withD938 Series Deep Hole Internal Coolant Twist Drill Suitable for efficient drilling of steel, cast iron and stainless steel New substrate material, perfect balance of toughness and wear resistance Using AlTiN nano coating and unique post processing of coating Optimize groove profile and drill point design, with super self centering performance, chip breaking performance and good chip evacuation performance
