Racer Shaping Tools with Coping Saw, 5 Different Blades, and Rasp (PIN3930)

Fine-tune your car's Center of Gravity (CoG) and optimize performance and stability. The product includes four 1/2 oz (14.1 g) screw-in Tungsten CoG Weights. You can use the weights individually or as sets of 2 to 4 units. They can be screwed in and adjusted with an Allen wrench.

The weights measure 3/4" in length from tip to tip and 3/8" in diameter. To drill a hole for the weights in the car body, a 23/64" size drill bit should be used.