Most hardware stores offer a very good range of tools like drills. However, when you need special sizes for our special helicopter application, it is very helpful to have a drill set handy which includes exactly the right diameters.
Typical applications: Drill 1.8 mm Ø for flange-head self-tapping screwsDrill 2.0 mm Ø for M 2.5 threadsDrill 2.5 mm Ø for M 3.0 threadsDrill 8.0 mm Ø for holes in the canopy to accept rubber grommets





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