5Pcs Metric Hand Straight Flute Taps Assortment M3 M4 M5 M6 M8 with 1Pc Adjustable Wrench, Steel... M2/M2.5/M3/M3.5/M4/M5/M6 HSS Metric Straight Flute Thread Screw Tap Due to the difference between different monitors, the picture may not reflect the actual color of the item. M3 M4 M5 Tap Set Metric Screw Taps M3 To M12 7-Piece Metric Thread Tap Set - M3 To M12 Straight Flute Taps For Metal & Wood Metric Thread Taps M3 M4 M5 M6 M8 M10 M12 Screw Threading Tool Straight-Flute Taps Straight-flute taps create or repair internal threads in blind holes and through holes. They are sometimes called hand taps. Chips move into the taps' flutes but are not evacuated as the taps are rotated into a hole to cut threads. Carbide taps are harder and more heat-resistant than high-speed steel and powdered-metal taps Tap most materials in through or holed conditions., 2., Clear threads with no burrs, hand taps provide downward chip removal, and fast tapping with accuracy., 3., High-speed hand taps are with high hardness and toughness for wear resistance, well suited for general purpose applications., 4., Structure concise, easy to use and maintain, high sensitivity, stable and reliable accuracy., 5., Suitable for repair, assemble furniture, machinery manufacturing, ect.