metrotools 9 Pcs Adjustable T-Handle Tap Holder Wrench, Machine Thread Taps Set Tool Set with 4 Pcs Metric Taps Set (M3-M6 Taps), 4 Pcs Drill Bits

T-type manual tap, you need to drill a shallow hole with a twist drill, and the twist drill is installed on an electric drill. Taps of different sizes are used with different types of drills when drilling. Tap M3, Pitch: 0.5 Twist Drill Diameter: 2.5mm Tap M4, Pitch: 0.7 Twist Drill Diameter: 3.5mm Tap M5, Pitch: 0.8 Twist Drill Diameter: 4.0mm Tap M6, Pitch: 1.0 Twist Drill Diameter: 5.0mm Tap Wrench operate main point: 1. The good pit hole must chamfering chamfer first 2. To use drill clamp supporting tap 3. Tap to vertical alignment operation 4. Cut into rotation level 2-3 times 5. confirm vertical after Cut 6. Tapping 3/4 turn after a quarter back feeling 7. level reversal pull out after working 8. Remember that cutting metal need to use with the oil STRAIGHT SHANK TWIST DRILL Straight shank twist drills can be clamped on manual or electric hand-held drilling tools or drilling machines, milling machines, lathes and even machining centers. It can drill holes in wood, metal (iron, stainless steel, copper, aluminum, gold, silver) and plastic. When using manual drilling, you need to pay attention to adjusting the drilling speed. If the drilling speed is too fast, the drill bit is easily damaged, so it is important to control the drilling speed. The larger the drill diameter, the slower the drilling speed requirement. Diameter:2.5mm Max rotate speed:1400-1800 Rpm Diameter:3.5mm Max rotate speed:1000-1400 Rpm Diameter:4.0mm Max rotate speed:800-1000 Rpm Diameter:5.0mm Max rotate speed:700-800 Rpm Packing Including: • 1 x Tap Holder Wrench • Wrench Length: 60mm/2.36” • 4 x Metric Taps Set • Size: M3/M4/M5/M6 • 4 x Drill Bits • Size: 2.5/3.5/4.0/5.0mm