46202 Solid Carbide Spiral Plunge 1/4 Dia x 3/4 x 1/4 Inch Shank
https://www.stepcraft.us/shop/46202-46202-solid-carbide-spiral-plunge-1-4-dia-x-3-4-x-1-4-inch-shank-692
https://www.stepcraft.us/web/image/product.template/692/image_1920?unique=d284494
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