7pcs M3-M12 HSS Nitriding Coated Screw Thread Tap Set Machine Thread Tap Drill

Specification:  Material: HSS;  Diameter of Head: 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm;  Thread: M3*0.5, M4*0.7, M5*0.8, M6*1.0, M8*1.25, M10*1.5, M12*1.75;  Purpose: processing nuts or common thread on alumunium or alumunium alloy parts; for the tapping machine;  Quantity: 7pcs     Features:  - The application of nitriding enhances the abrasion performance, surface hardness, fatigue limit, anti erosion ability of the tapping;  - Small resistance, smooth chip removal, smooth cutting surface, no residue, with good machinability, it can tap to the button of blind hole;  - Flexible to be use, processing efficiency, good stability, safe and reliable, widely used, low processing cost, can be applied to a variety of jobs.     Package Included:  1 x Spiral flute tap set (7pcs)