20 : 20
Miter pair · 24 DP, ¼" bores
24 DP · 20° · straight, AGMA 2005 proportions
Small inch miters: 24 DP, 20 teeth, ¼" bores.

An inch pair: 10 DP, ½" keyed pinion, ¾" keyed gear.
The link opens the pinion and gear in the Bevel Gear Designer's 3D view. Change the teeth, the module or pitch, the shaft angle, the bores or hubs, then download STL, STEP or a drawing.
24 DP · 20° · straight, AGMA 2005 proportions
Small inch miters: 24 DP, 20 teeth, ¼" bores.
m 2.2 · 20° · straight, AGMA 2005 proportions
The 15 : 45 pair (module 2.2, 3 : 1) with AGMA 2005's mid-face proportions.
m 2.2 · 20° · straight, Gleason proportions
The same pair in Gleason's heel-based proportions, the ones catalogue gears use.
m 2.2 · 20° · spiral 35°, pinion left hand
Curved teeth at a 35° spiral angle: more teeth in contact, smoother and quieter.