This Micro carving deep U-Gouge tool can handle the extra-fine details often encountered in woodcarving, they are great for carving details & adding texture to pieces such as eyes, mouths, hair, fur, feathers, fine accents, etc. They are also great for cleaning up ridges created by gouge cuts, cleaning up tight corners & accessing tight spaces. The blade is made of High Carbon Spring Steel, Tempered to HRC 59-61. The cutting edge is hand honed & polished.    Made in the USA.,For California Residents:,   WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov,WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood Micro Deep U-Gouge - 4 mm