4-40 Tap and Drill
4-40 high speed steel plug tap and #43 high speed steel drill bit
This item consists of a 4-40 high speed steel plug tap and associated #43 high speed steel drill bit. Use this drill and tap to make threaded mounting holes in electronics bay mounting sleds, or in an airframe when using 4-40 nylon screws as shear pins. Taps smaller than 6-32 can be difficult to find locally.
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