Made Of High-Speed Steel Material, Providing Durability And , Wear-, And Not Easy To Break. They Are Suitable For Intricate Carving And Fine Detailing While Leaving A Smoother Finish, Perfect For Beginners, Professionals, And Craft Enthusiasts To Use. All Shank Size Is 3 Mm(1/8 inch ) Shank Grinding Drill Bits, Which Compatible With Most Rotary Tools Or Die Grinders. The Engraving Head Adopts A New Design For Precise Cutting, Enabling And Precise Wood Processing. Ideal For Fine Processing Such As Deep Grooves, Drilling, Clearing, Curved Patterns And Lines. 11 Engraving Knives With Different Functions Meets Your Different Working Need. Widely Use On Kinds Woods For Diy Crafts, Wood Carving, Rootcarving, Modeling, Making, House Repair, Micro-type Sculpture And Other Wood Working, A Must-Have Carving Tool To Create Your Own Masterpiece. You Receive 11 Wood Carving Tools As Well As A Plastic Box For Storage. Colour:As Shown Material:Metal Package Contents: 11 * wood carving bits for rotary tools Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.