Available for use with the No. 295 Uni-Cutter, these blade stiffeners and pile dividers permit row and trace cutting of all types of carpet. All are made from tempered spring steel and both blade stiffeners are .025" thick, while both pile dividers are .032" thick with a beveled edge. The 'Standard' series are for carpet up to 3/8" pile depth, while the 'Extended' series are for carpet up to 5/8" pile depth. For row or trace cutting, a blade stiffener and pile divider (both 'Standard' or both 'Extended') should be used together. For cutting circles, only a blade stiffener is needed. Best used with 'Hang Over' straight edges.