Customized version of https://www.thingiverse.com/thing:1539656

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing_id=1539656

Using the following options:

$fn = 100
diameter = 5
height = 6.5
toothBaseWidth = 0.94
toothTipWidth = 0.37
toothLength = 0.94
toothSpacing = 0.26
toothOverlap = 0.2
holeDiameter = 2.5
createRim = 0
rimOuterSize = 2
rimInnerSize = 0
rimThickness = 2
createLock = 0
lockSize = 1
lockLength = 0.4
createArms = 0
armInnerDiameter = 10
armOuterDiameter = 45
armThickness = 4
armNumber = 3
armOverlap = 2
createJoint = 0
jointDiameter = 3
jointDistance = 20
jointLength = 2