#4-40NC Drill/Tap Set


For hand tapping applications only!
Includes #43 drill bit and #4-40NC tap
For Ci2, Ci3, Ci4, and Ci5 size cutters.

In stock

SKU: 80209 Category: Tags: , , , , , , , ,


Want to make your own carbide tools? You’ll need this set! Includes a #43 drill bit and #4-40NC tap.

Drill a pilot hole using the included #43 drill bit, then, using a tap wrench, insert tap into hole and begin turning clockwise. When tap starts to bind, reverse tap 1/4 turn to break chips. Utilizing cutting fluid will ease the operation.


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