HARFINGTON 5pcs Metric Spiral Flute Tap Set M3 M4 M5 M6 M8 AlTiN Coated M35 High Speed Steel Machine Screw Thread Milling Tap Tapping Threading Tools - hta231229hh000991

• Size - thread size: m3 x 0.5 / m4 x 0.7 / m5 x 0.8 / m6 x 1 / m8 x 1.25 . thread length: 13mm (0.51") / 15mm (0.59") / 19mm (0.75") / 23mm (0.91") / 23mm (0.91") . total length: 51mm (2.01") / 57mm (2.24") / 62mm (2.44") / 71mm (2.8") / 71mm (2.8") . shank side width: 2.5mm (0.1") / 3mm (0.12") / 4mm (0.16") / 5mm (0.2") / 5mm (0.2") Material - Spiral Flute Taps is made from M35 High Speed Steel with 5% cobalt, which increases hardness, strength, and heat resistance, allowing for efficient and reliable cutting performance. The hardness of HSS M35 after heat treatment is higher than HSS 6542 (M2). The Aluminum Titanium Nitride (AlTiN) coating on a thread tap can effectively improve the high-temperature processing life of taps and provide higher surface hardness. Feature - Spiral flute drill thread tapping tool specially designed for thread cutting of standard size screws discharge chips upward quickly in a spiral shape, which provides clear and tidy without burrs for efficient threading, especially important when tapping blind holes. Application - Spiral flute tap are most commonly used for tapping blind holes and recommended use in metals that result in curled or brushed chips (aluminum, brass, copper, stainless steel, steel, etc) for creating precise and durable internal threads in metalworking industries and applications, ensuring accurate results on ordinary lathes, drilling machines, and tapping machines. Package Content - 1pcs x spiral flute tap m3 x 0.5 + 1pcs x spiral flute tap m4 x 0.7 + 1pcs x spiral flute tap m5 x 0.8 + 1pcs x spiral flute tap m6 x 1 + 1pcs x spiral flute tap m8 x 1.25