This is handy, Add Spindle extension and the Step pin , simple and easy to use, also allows for a quick for secondary grinds on corners.
The step pin allows for a spindle rotation of 7 degrees,When the motor is tilted down 7 degrees the wheel lift is almost 1 inch
The motor is tilted 7 degrees and so is the tool you all set to take out the center gash
making a nice center cutting geometry