Speedy Shaft and holt Fit and Tollerance Calculator
Used as a quick guide, verify with trusted sources and a proper engineer before you risk destroying parts. Use at your own risk!
Use at your own risk and double check your measurements yourself with verified sources before doing anything.
I hope this is useful. Add it to your home screen for quick reference if you like.
Tap the Share icon (the square with an arrow pointing up at the bottom of the screen).
Scroll down the menu and tap Add to Home Screen.