This Five (5) piece set was secifically designed for the Model Airplane enthusiasts. Used for putting threads in a hole made with a a tap drill. Can be used for a wide range of materials such as low carbon steels, stainless steel, copper, brass, aluminum and plastics. Set includes the following taps: - Tap Size 2-56
- Tap Size 3-48
- Tap Size 4-40
- Tap Size 6-32
- Tap Size 8-32
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