ITEM NAME:1/4in T-type Wood Router Bit Mill Engraving Trimmer Adapter Milling Cutter #gib Store Home Promotion Hot Item Add to Fav.Usage: 6.35mm/0.25" center shaft, used in electric and manual engraving machine. The 6.35mm/0.25" handle can be clamped by self-tightening to carve the machine and product. Blade width: 1/4". Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.