Makita D-72154 4mm Chain Blade Sharpening Set In Roll Up Pouch Chain blade sharpening set in a water resistant, compact roll up pouch. CONTENTS  3x 4mm Round File 2x Handle 1x Flat File 1x Depth Gauge 1x Roll-Up Pouch FEATURES Chain saw sharpening kit with water & grease resistant rollup bag Angle markings on file holder for easier and more accurate sharpening angle Resin type handle 150mm flat file with handle for use with or without depth gauge Ergonomic grip handle 2 Additional round files File holder (guide bar) with handle and angled markings so you can align with chainsaw chain