Your source for the best Pinewood Derby axle drilling tool on the planet! It is truly Superior.
Perfect tool for the serious competitor, family with limited tools, or Scouts just there to have fun. It will save you time and help you build a better car.
Can do it all! 4-Wheel, Camber, 3-wheel, extended wheelbase
See below for:
Download Directions as a PDF file
Before you start:
Prepare your axle holes before cutting and sanding your raw car block into a finished shape - this will help guarantee all axles to be aligned.
Epoxy - determine if you will use epoxy to reinforce the axle slot (if this is allowed). If so, consider applying epoxy to the slots prior to drilling. Drilling into the cured epoxy (J-B Weld is often used) will be easy using the Superior drilling jig, and you will have an axle hole that is much stronger than wood alone.
Camber
This is an advanced technique used by some racers. what is camber?
1) Prepare the block and mark axle locations with a straight edge.
2) "Zero" the two camber screws. Turn in so they just contact the table.
3) Continue to turn both equally to set camber angle. 1 turn = 1.7 degrees of camber.
4) Orient jig with screws away from car for negative camber angle, near car for positive camber.
5) Align marks on jig with axle marks on your car and drill.
6) Turn car block around and drill the other side.
Positive Camber Axles:
Car with negative axle camber:
4-Wheels in contact
This is the easiest build type, and most common.
2) Back out both camber screws.
3) Align marks on jig with axle marks on your car and drill.
4) Turn car block around and drill the other side.
3-Wheels in contact
This advanced option uses 4 wheels, but only 3 of them are in contact with the ground.
2) Back out both camber screws.
3) Elevate the jig on one end with a few pieces of paper. Each paper thickness is about 0.004"
So, to get 0.016", use four pieces. Under the jig only, not the car block.
4) Align marks on jig with axle marks on your car and drill one side.
The paper elevates one axle hole, and this will be the wheel not in contact
5) Remove paper and re-clamp the jig.
6) Turn car block around and drill the other side.
Extended Wheelbase
2) Back out both camber screws.
3) Align marks on jig with axle marks on your car and drill one axle.
4) Slide car to align with second axle and drill.
5) Turn car block around and drill the other side the same way.
What is supplied FAQ Replacement Parts Using the Jig BUY ONE
