General description The Trimmer Head for Stihl models FS38, FS40, FS45, FS50, FSE60, FSE71, FSE81, TE600, TE700, and TE1000 is designed for efficient cutting and trimming. This Auto Cut C5-2 head is a reliable replacement for the original part number 4006 710 2105. Technical specifications Model: Auto Cut C5-2 Thread: M8 x 1.25 Compatible with trimmer heads up to 10,000 rpm Replaces part number: 4006 710 2105 Contents: 1 wire head + 1 spring Compatibility and accessories Compatible with Stihl trimmer models: FS38, FS40, FS45, FS50, FS50 CE, FSE60, FSE71, FSE81 Compatible with Viking models: TE600, TE700, TE1000 Other information