When selecting a double-sided TCT alloy straight blade, consider three core factors: processing equipment, material, and purpose, while balancing specifications, craftsmanship, and quality. First, determine the blade shank size: household trimming machines and small engraving machines typically use a 6.35mm shank, while large cutting machines and CNC equipment prioritize a standard 12.7mm shank to avoid clamping mismatches. Next, choose the blade width and length based on processing needs: narrow 2–4mm blades are suitable for fine grooves and trimming, while 5–6mm or larger blades are ideal for cutting and wide grooves. The blade length should slightly exceed the material thickness to prevent incomplete cuts.

    Select the appropriate type based on the processed material: solid wood, MDF, and plywood can use the standard version; for particleboard and glued laminated boards, it is recommended to choose the thickened alloy blade to enhance anti-fracture capability. Additionally, inspect the tool's craftsmanship: the alloy weld seams should be smooth without under-welding, the cutting edge must be polished and free of nicks or burrs, and the tool body should rotate without wobbling. Finally, match the working conditions: for short-term sporadic processing, opt for cost-effective domestic basic models; for long-term batch operations, prioritize durable models with thickened tool bodies and precision-ground blades. Properly control the rotation speed and feed rate to achieve optimal tool performance.