2 Pcs 4mm Cutting Dia 3 Straight Flutes HSS Machine Screw Thread Taper Taps

Specification:

Description:

• Features: Straight threaded flute, taper cutting edges and 4mm diameter flute.
• Suit for machine use to cuts a thread on the inside surface of a hole, creating a female surface which functions like a nut.
• A taper offer a very gradual cutting action and is most often used when the material to be tapped is difficult to work (e.g., alloy steel).