Compression Spiral Flush Trim Router Bit, 1/4 Inch Shank Up and Down Solid Carbide Router Bits with Bottom Bearing, DLC Coated Flush Cut Router Bit for Woodworking Template & Pattern Following

Eyryfui 1/4" Compression Spiral Flush Trim Router Bit – DLC Coated Solid CarbideAchieve flawless, splinter‑free edges with the Eyryfui Compression Spiral Flush Trim Bit. Engineered for woodworkers and CNC users, this bit combines a precision bottom bearing with up‑and‑down cut geometry to eliminate tear‑out on both top and bottom surfaces—minimizing sanding and rework.Precision Construction​Crafted from solid tungsten carbide with a DLC (Diamond‑Like Carbon) coating, this bit reduces friction and heat buildup, delivering smoother cuts in hardwoods, plywood, MDF, and plastics. The 1/4" shank fits most handheld routers and CNC machines for maximum versatility.Optimized Cutting Parameters​For best results, match your router settings to the material:Softwoods (Pine, Cedar):​ 18,000–24,000 RPM | 100–150 IPM feed rateHardwoods (Oak, Maple, Walnut):​ 14,000–18,000 RPM | 60–100 IPM feed ratePlywood / MDF / Composites:​ 16,000–20,000 RPM | 80–120 IPM feed ratePlastics / Acrylic:​ 12,000–16,000 RPM | 50–80 IPM feed rateIf burning occurs, reduce RPM or increase feed rate. Smaller diameter bits tolerate higher RPMs than larger bits.Ideal Applications​Perfect for flush trimming laminate, veneer, and edge banding; template and pattern routing; CNC milling; window cutouts; and craft projects.Material Compatibility​Works exceptionally well on hardwoods, softwoods, plywood, MDF, particleboard, composites, and plastics.Not for use on metals, stone, tile, or glass.​ Avoid aggressive single‑pass cuts in thick hardwoods—use multiple shallow passes to prevent overload and extend bit life.Safety & Best Practices​Always inspect the bearing before use. Secure your workpiece and template firmly. Ensure the router collet is clean, undamaged, and properly tightened. Wear eye and ear protection, and keep hands clear of the cutting area.Specifications​Material: Solid Tungsten CarbideCoating: DLCShank: 1/4"Cutting Length: 1‑1/8"Overall Length: 3"Package Includes​1 × Eyryfui Compression Flush Trim Router BitBacked by a 30‑day satisfaction guarantee and 24/7 customer support. Contact us anytime for setup guidance or warranty assistance.

• [Delivers Clean, Ready-to-Finish Cuts] The compression spiral design of this flush trim router bit​ severs material cleanly on both the upstroke and downstroke. This action minimizes tear-out on the top and bottom surfaces of plywood, hardwood, MDF, and laminates in one pass. The result is an edge from your router bit​ that often requires very little sanding before finishing, making it highly effective as a flush cut router bit​ for veneers and overlays.
• [Built for Long-Term Performance from Solid Carbide] The cutting body of this router bit​ is made from a single piece of solid carbide, offering greater hardness and heat resistance than high-speed steel. This construction allows it to maintain a sharp edge through repeated use in tough materials, ensuring your set of router bits​ provides consistent performance and long-term value.
• [Precision-Guided by Bottom Bearing] Two bottom bearing guides this flush trim router bit​ along the edge of your template or workpiece. This ensures the cut follows the path accurately, which is essential for duplicating parts with a pattern or performing flush trim​ work on laminated edges. The bearing provides the stability needed for controlled, precise routing.
• [Friction-Reducing DLC Coating] The bit is enhanced with a specialized carbon-based coating applied to the flutes. This coating reduces friction and heat buildup during cutting, which helps prevent material (like softer woods or plastics) from sticking to the bit. Less friction contributes to smoother cutting action, reduces the risk of burn marks on your workpiece, and can help extend the overall service life of the tool.
• [Ideal for Detailed Template Work and Common Routers] This flush trim router bit with a 1/4 inch shank​ is designed for creating identical parts from a template or trimming overhanging materials flush. The 1/4 shank​ is compatible with most common handheld routers and CNC machines that use a 1/4-inch collet. For optimal results and to protect the bit, use with a secure template and take multiple shallow passes instead of one deep cut.
• [Safety Warning] Intended for use by professionals or under adult supervision. Keep sharp objects away from children.