PROBEROS 6 Machine Screw Tap Set HSS Titanium Spiral Flute Drill Taps Metric M3 M4 M5 M6 M8 M10 Thread Tapping Tool 1/4 Hex Shank Countersunk Tap Drill Bit Cordless Drill  (10.4 mm Chuck Size)

[Value Screw Tap Set ]--6pcs drill bits of various type, meeting you different tool needs. Including M3 x 0.5cm, M4 x 0.7, M5 x 0.8, M6 x 1, M8 x 1.25, M10 x 1.5.[Sturdy and Durable]--Designed for longtime service life. Constructed with high speed steel ,tiain coating and heat process treatment,making the screw tap bit set more sturdy and durable to use even under high speed electric drill.[Wide Spiral Flute ]--Designed as wide spiral flute, for smoother chip removal, no stuck during work, easy to clean,making the workpiece smoother cut.[More Efficient Work]--No need for additional center drills or center punches! Anti-wear: the back of the cone is on the faucet to prevent over-drilling due to thread damage[Wide Application]--Can be used on light metal aluminum board, iron plate, ordinary stainless steel and other materials.