- Robert Sorby Modular Micro 1/4 Inch Round Skew Chisel, HSS blade, Unhandled. - Robert Sorby Modular Micro tools were designed following the success of the full-size Sovereign System. These miniature versions are scaled down version of poplar full-size tools and fit into knurled, anodized aluminum handles offered in 2 sizes, inch and inch. - Modular micro tools come in 18 different versions to address the full spectrum of micro turning. Multiple prearranged set are also available - All tool blades are made from Sorby���s signature High Speed Steel (HSS). This HSS tool will keep a sharpened edge about six times longer than carbon steel and resist "blued" softening from overheating during grinding or from heavy use. - The unique sizes and pro���les of these micro modular tools have been adapted to provide the ���exibility and control essential for fine, detail work. These tools are ideal for working on smaller projects and on smaller lathes.