List No. 2068
Ground Thread - High Speed Steel - Straight Flute
Recommended for tapping free machining steels, stainless
steels, aluminum, zinc, magnesium and ductile materials.
Taper (8-10 thread chamfer) distributes the cutting
load over a greater number of threads for easier starting,
especially when tapping difficult-to-machine materials.
Plug (3-5 thread chamfer) is used for most general
purpose tapping applications in through holes and blind
holes with sufficient bottom clearance.
Bottom (1-2 thread chamfer) is used in blind holes
to finish the thread to the required depth-often after
starting the thread with a taper or plug tap.
