Therefore, the single groove is more suitable for iron, copper and steel. Material: tungsten steel. Size: 3mm 4mm 6mm 8mm 10mm - 16mm. Double groove AX is suitable for wood, plastic, aluminum and other soft materials cross grain, more suitable for objects with relatively low density, such as: wood, plastic, aluminum materials, with cross grain drainage fast, grinding and carving is not easy to block the grain, so it is more suitable for use on soft objects.
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