Uxcell Tap & Bit Sets, M4 X 0.7 H2 Straight Flute Machine Thread Milling Tap 80Mm Extra Long, 4Mm High Speed Steel (Hss) Twist Drill Bit

Straight Flute Tap: Thread Size: M4 x 0.7; Thread Length: 20mm / 0.79"; Square End Width: 3.1mm / 0.12"; Total Length: 80mm / 3.15"; Accuracy: H2 Material: 6542 High Speed Steel (HSS); Cutting Direction: Right Hand Package: 1pcs x Thread Milling Tap Twist Drill Bit: Cutting Edge Diameter: 4mm / 0.157"; Shank Diameter: 4mm / 0.157" Cutting Edge Length: 82mm / 3.23"; Total Length: 119mm / 4.69"; Material: High Speed Steel (HSS) Package Content: 1pcs x Twist Drill Bit Descriptions: (Note: In the set, this drill bit is NOT suitable for drilling holes for this tap before threading.) Straight flute design, downward chip removal, fast tapping with accuracy. Suitable for processing through holes or shallow holes. For tapping aluminum, die steel, stainless steel, bronze, hard plastics. High-speed steel tool has high hardness and toughness for wear resistance. Features just the base substrate without any additional coatings, good for wide ranges of applications. Used on drilling machines, tapping machines, CNC and milling machines. Use with tapping oil to get higher quality threads and more durable taps. Machine taps are suggested to be used with tap collets with overload protection. Hand use is easy to cause breakage to the tap due to uneven force. Spiral chip space design for fast and clean chip removal. The cutting edge provides smooth cutting and no glitches. Chips are not easy to stick to the tool. Suitable lubricant is conducive to cutting or cooling, making cutting easier, improving smoothness and dimensional accuracy. Select an appropriate feed rate and cutting speed to improve the tool life and obtain better processing accuracy and performance.