Dormer Threading Tap, M4 Thread, Metric Standard, Machine Tap

Solid carbide tapes for the production of metric coarse internal threads in hardened steels (49-55 HRC). These metric coarse straight flute taps are ideal for mass productions with cutting speeds up to 3 times higher than HSS-E taps. Featuring TiCN coating for high strength/hardness which helps to resist abrasive wear and breaking. Can be used for horizontal or vertical blind hole machining and for threading depths up to twice the diameter.

• High performance and improved tool life
• Threading depths up to 2 times diameter
• Ideal for threading short chipping materials
• For hardened steel applications

Precision HSS taps to ISO529 designed to produce repeatable tolerance threads in most engineering materials. Suitable for medium/high rate production. All taps are to tolerance class 2, giving 6H fit (metric taps) or 2B fit (UNF & UNC taps)