Machine Tap 7 Pcs Hss6542 Spiral Point Titanium Coated Tap Machine Screw Thread 7 PCS HSS Titanium Coated Spiral Point Tap Set ? [PREMIUM MATERIAL]- This metric tap set is made of high quality HSS6542 (High Speed Steel) with titanium coating, highly hard, sharp, rustproof, anti-corrosive, ensuring long time use; ? [DIMENSION]-7 PCS machine screw thread tap set includes:M2x 0.4/M2.5x0.45/M3x0.5/M3.5x0.6/M4x0.7/M5x0.8/M6x1; ? [FUNCTION]- Nice spiral pointed metric tap set used to create screw threads on wood, plastic, aluminum and more materials and remove chips simultaneously. The machine screw thread tap set have 7 different size spiral pointed taps for processing through-hole threads and deep-hole threads to satisfy your various needs; ? [APPLICATION]-Great tap set for auto repair, household projects and machinery where metric threads are specified; ? [USAGE]- This machine tap set is suitable for drill presses, tapping machines, CNC and milling machines. The machine tap set can be used with tapping oil to get better quality.