Guhring - M4x0.70 Metric, 3 Flute, Bright Finish, Powdered Metal Spiral Point Tap - Plug Chamfer, Right Hand Thread, 63mm OAL, 6H Class of Fit, Series 877

Plug chamfers are the most commonly used chamfer and are designed for efficiently threading through and blind holes. They have 3 to 5 threads.

Bright provides a smooth, polished finish on the tool. It increases chip flow in softer materials such as aluminum, wood and plastic.

Powdered Metal (PM) is tougher and more cost effective than solid carbide. It is commonly used on highly abrasive materials including high silicon aluminums.