A 20mm spring-loaded engraving toolholder is available from 2L inc. The holder can be used in a CNC machine with a 20mm collet or endmill holder and is for high-speed production engraving on flat, curved or uneven surfaces. The toolholder's integrated collet allows quick changes of engraving tool bits. This collet can be easily changed to hold various engraving tool sizes in diameters of 1⁄8", 3⁄16", ¼", 4mm and 6mm.