I recently discovered a design ‘feature’ of a cheap set of taps…
They have no taper! a 60deg point, like a lather centre, then straight – like a bolt with grooves down the side!
really hard to start – in the end, i stuck it in the drill press, briefly hit the power switch to get it spinning then rammed it into the work. Sheer brute force got it to bite, but its obvious i have another ‘investment’ on the horizon. (actually, 2 sets, both metric, have the same ‘feature’ – maybe i could grind a taper onto 1 set?)
-russell