Spiral Tap Drill Combination Silver Metric Countersink - 1PCs

Description

description:5pcs titanium coated screw tap metric spiral tap drill specification: material: surface treatment: titanium coated size:m3 m8 type size: m3: 3mm*0 m4: 4mm*0 7mm m5: 5mm*0 m6: 6mm*1mm m8: 8mm*1 mmfeature:metric sprial point machine taphigh hardness fast cutting with material titanium coatedspiral design conducive remove crumbs not easily broken tap spiral tap the crumbs into a spiral chip evacuation more suitable for the processing blind holes and sticky materials processing applicable workpiece: tensile strength 750n less the low-carbon steel copper aluminum magnesium alloy; anti-bonding strength 900n the high-carbon steel alloy steel bronze package included:5x spiral point machine screw tapmore details: