Fine tuning of shock piston sizes has always been a tuning tool for the pro's. With this tool from core rc its a simple task for any racer. This hand drill comes included with 8 different drill bits 1. 5mm, 1. 6mm, 1. 7mm, 1. 8mm, 1. 9mm, 2. 0mm, 2. 1mm and 2. 2mm

For smaller sizes please see cr233 - piston drilling kit-1. 1-1. 8mm (8 bits)2 double ended chucks are included allowing for drill sizes between 0 to 2. 9mm, for other simple hand drilling uses.