Festool 497300 Carvex Jigsaw Steel Base Insert features a metal cutting base insert with a durable steel surface that outlasts the standard base. Designed specifically for use with the CARVEX jigsaw, this insert is i for cutting non-ferrous metals up to 3/4" thick and steel up to 3/8" thick. To ensure optimal performance, it is important to use a metal cutting blade. When using dust extraction during metal cutting, Festool's optional spark trap is to prevent hazardous conditions that may cause fire. This steel base insert attaches tool- to the jigsaw, protects the base from burrs while cutting metal, and is compatible with all Festool CARVEX jigsaws. Model Number: 497300