M3 0.5 tap, lots of plastic wrap to protect bearings.
Used wire in the blind hole to measure depth then added tape on the tap.
Side:
Chris when you are here. I would recommend you drill and tap the 13 tooth sprocket and bump the kit price a few dollars. I would guess many people in the next 40 kits would have to order a metric tap set.
M3 0.5 tap, lots of plastic wrap to protect bearings.
Used wire in the blind hole to measure depth then added tape on the tap.
Side:
Chris when you are here. I would recommend you drill and tap the 13 tooth sprocket and bump the kit price a few dollars. I would guess many people in the next 40 kits would have to order a metric tap set.