[SCGEHA] Mini 4WD shaft correction, shaft correction jig, correction, stainless steel, distortion correction

This is a correction jig that corrects distortion and bending of Mini 4WD shafts and straightens them. Straight shafts reduce drive loss and ensure stable running. Simply pass the shaft through the rails several times to complete distortion correction. It can also be used as a shaft checker to check for shaft distortion. Compatible with both 72mm and 60mm hollow and reinforced shafts. Body size: 50 mm x 9.7 mm x 4.7 mm Body weight: 16 g