Customized version of http://www.thingiverse.com/thing:2038582

Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=2038582

Using the following options:

Part = Grips
Outer_Hole_Type = 2
Edge_Profile = 0
Cutout_Radius = 0
Dual_Cutout_Separation_Degrees = 60
Alt_Node_Diameter = 0
Color_Insert_Extra_Height = .5
Bearing_Grip_Thickness = 3.1
Color_Insert_Surface_Ring_Height = 1
Node_Radius = 29
Cutout_Multiplier = 0
Center_Bearing_Inner_Bore_Diameter = 8
Height = 7
Bearing_Grip_Center_Hole = 1.7
Center_Bearing_Support_Ring_Width = 2
Display_Mode = 2
Cutout_Width = 6
Cutout_Orientation_Degrees = 0
Bearing_Grip_Diameter = 0
Node_To_Notch_Ratio = 1
Node_Count = 6
Center_Bearing_Outer_Diameter = 22
Outer_Hole_Diameter = 12.7
Bearing_Grip_Shoulder_Thickness = 7.4
Color_Insert_Scaling = 90
Notch_Depth = 75
Cutout_Shape = 1
Cutout_Rotation_Degrees = 0
Cutout_Height = 6