SICWOOD Extra Long 4 Inch Solid Carbide CNC Spiral Router Bit, 1/4 Inch Shank, 1/4" Dia, Up-Cut, for Deep Wood Cutting, Mortise, Carving, Grooving &

SICWOOD Extra Long 4 Inch Solid Carbide CNC Spiral Router Bit, 1/4 Inch Shank, 1/4" Dia, Up-Cut, for Deep Wood Cutting, Mortise, Carving, Grooving &

for Deep Pocket&3D Carving: SICWOOD 4-inch extra-long cnc spiral router bit design enables deep-cavity or thick-material processing (e.g., deep wood grooves) that short bits can’t handle. With 1/4" cutting diameter and 2" length, it ensures accurate cutting paths, avoiding size deviations. Ideal for Thick Material and Complex Geometries: SICWOOD long spiral bit is perfect for deep lettering on thick wood blocks, creating functional joints in oversized timber, machining deep inlay channels, and producing intricate deep-relief carvings that require significant Z-axis travel. Solid Carbide Material, Durable&Sharp: Made of full solid carbide, the router bit maintains exceptional sharpness even after long-term use, high hardness resists wear, ensuring stable cutting performance for consistent, high-quality results. Spiral Cutting Design, Improving Precision and Reducing Material Damage: spiral structure minimizes splintering/tearing on wood or composite surfaces, delivering smooth, burr-free cuts. It also enhances chip evacuation, preventing clogging and ensuring continuous, efficient processing. Versatile Compatibility: With its 1/4-inch shank, this bit is compatible with most CNC routers and powerful handheld units. Suitable for softwoods (pine/cedar), hardwoods (oak/maple), engineered wood (MDF/plywood), and laminates, meeting diverse woodworking needs. Speed Guidelines: For optimal performance in woods, Recommended speeds: 18,000-24,000 RPM for softwoods; 12,000-18,000 RPM for hardwoods; 15,000-20,000 RPM for laminates/engineered wood. Proper speed avoids overheating or tool damage, protecting both the bit and workpiece.

SICWOOD Extra Long 4 Inch Solid Carbide Spiral Router Bit is engineered to conquer deep-cutting challenges that are impossible with standard-length tools. Its impressive reach allows you to machine deep pockets, profile the edges of extra-thick stock, and create tall 3D sculptures with unparalleled ease.

Made from solid carbide, this bit maintains exceptional rigidity to resist bending and vibration, ensuring straight, accurate cuts even at maximum depth. The efficient up-cut spiral flutes ensure that chips are cleanly ejected from deep work areas, preventing re-cutting and heat damage to both the tool and your workpiece.

Ideal for use on CNC machines and robust handheld routers, this bit opens up new possibilities for working with thick hardwoods, laminated panels, and complex prototypes. It is the ultimate tool for sign makers, furniture builders, and any craftsman who needs to push the boundaries of depth in their woodworking projects.

NOTE:

Extra-long 4-inch design with clear breakage-prevention tips, ensuring safe, durable use: To avoid breakage, use multiple shallow passes (1/8–1/2 inch per pass, based on material), slow steady feed rates (10–20 IPM). Secure the 1/4 shank with an ER collet (clamp ≥1 inch depth) to reduce vibration. Stick to recommended materials (softwoods/hardwoods/MDF) & RPM (12,000–24,000), and check for cracks before use—extending the bit’s lifespan.