Combination Drill & Taps
M3 M4 M5 M6 M8 Coated Screw Tap Set Right Hand Thread Tap Drill Set Straight Flute Threading Tools 1Pcs
See the second picture for details

specification:
Type: Hand Tap
Material: High Speed Steel

Size: M3x0.5 M4x0.7 M5x0.8 M6x1.0 M8x1.25
Application: Suitable for bicycle repair, assemble furniture, machinery manufacturing, ect.