Tap and reamer sizes for PM reaserch engines.

[HenryBanjo]

Hi there,
Would anyone who has built the PM research #1 and #3 engines be able to tell me what sized taps and reamers I would need (Or their metric equivalents)

 

[Nikhil Bhale]

Hi,
I have made PM research #1 and #5 engines and used metric fasteners
I don't remember exactly but you will mostly require M2, M2.5 and M3 taps. Maybe M4 or M5 for the base.
Reamers would be 3mm, 5mm 8mm and 10mm.

regards
Nikhil