Description:?Precision Model Engraving Tools?: The Model Scriber Tool Includes A Handle And Engraving Pen, Ideal For Model Modification And Precision Engraving.?Quality Material?: Made Of Durable Metal Material, This Engraving Tools Kits Is Built To Last, Ensuring You Can Tackle Any Project With Confidence.?Multi Function?: This Engraving Pen Set Is Ideal For Engraving Curves, Circles, Positioning, Frequently Changing Angles And Deepening Lines.?Easy To Use?: The Model Swivel Adopts Ergonomic Design, Comfortable To Hold And Easy To Control, Suitable For Beginners And Professionals, Perfect For Model.?Compact And Portable?: The Hobby Is Small, Lightweight And Easy To Carry. Allowing You To Work On Your Projects From Anywhere.Size Chart:Small Round Hole Pen Tip Clamp Diameter Range: 3~4Mm/0.12-0.16InchLarge Round Hole Pen Tip Clamp Diameter Range: 3~5.5Mm/0.12-0.22InchPackage Includes:1 Handle1 Pen Protective Case2 Metal Pen TipsNote:1. Please Allow Slightly Error Due To Manual Measurement.2. Due To The Difference Between Different Monitors, The Picture May Not Reflect The Actual Color Of The Item.3. Wish You A Wonderful Online Shopping!