SP16015 | Pilot Pin 6.34mm x 90mm To Suit 12-17mm MAX35 Cutters A pilot pin serves three main purposes:. Ejects the slug at the end of the cut. Provides coolant feed into the centre of the cutter. Locates the centre of the cut Specifications Diameter: 6.34mm Annular Cutter Depth of Cut: Suit MAX35 (12 – 17mm Ø) Overall Length: 90mm