42-Inch Flex Shaft Rotary Tool Attachment: Flexible design with comfort grip for carving, grinding, cutting, and engraving. Fits Dremel extension shaft systems and enhances precision in detailed projects. Reach Tight Spaces with Ease: This flexible 42-inch attachment features a 5-inch bend radius, allowing comfortable access to intricate angles. It is perfect for working inside tight housings, small workshops, or confined project areas where a standard tool won't fit. Broad Compatibility: Features a standard nose thread connection; works as a Dremel extension shaft compatible with models 100, 200, 300, 3000, 4000, 4300, 8220, 8240, 8250, 8260, plus other standard rotary tool accessories. Ergonomic Comfort Grip: Designed for extended detailing sessions, this rotary tool flex shaft reduces strain on hands and wrists and ensures steady control. It’s an essential upgrade for detail-oriented makers who prioritize comfort during long projects. Versatile Restoration Tool: Ideal for sanding, cleaning, or engraving delicate items. This attachment is perfect for detailed finishing work during restoration, customization, or repair projects for those interested in fine craftsmanship. Easy Installation & Maintenance: Quickly connect to rotary tools and secure 1/8" bits. Maintain peak performance by lubricating the flex shaft core with white lithium grease before use. (Supports up to 35,000 RPM). IMPORTANT: PLEASE LUBRICATE the core with white lithium grease before use; 42 inch Long Flexible Drive Shaft Can Run Up To 35,000 RPM at no load; Not Compatible with STYLO (2050), Not Compatible with Micro (8050), 7000, 7300, 7700