Description: Accurately Drill Holes On Flat Surfaces, Board Edges, Cylinders, And Even Spheres With This Set! Clear, Impact Resistant Housing Board Gives Excellent Stability And Finger Control For Convenient Drilling. Set Includes 6Mm, 8Mm, 10Mm Diameter Hardened Steel Bushings And A Center Punch/Locator Pin. Features: Housing Board Is Made Of Plastic, Other Parts Are Made From ChromePlated Hardened A3 Steel For Durability And Rust Resistance.Accurately Drills Perpendicular Holes Or Oblique Holes On Flat Surfaces, Board Edges, Cylinders, Etc.Impact Resistant Housing Board Gives Excellent Stability And Finger Control For Convenient Drilling.Drill Guide Set Includes With 3 Hardened Steel Bushings In Size Of 6Mm, 8Mm, 10Mm.There Comes A Handy Center Punch/Locator Pin That You Can Use To Easily Locate Drilling Center. Specifications: Material: A3 Steel, Plastic Bushings Size: 6Mm(0.23"), 8Mm(0.31"), 10Mm(0.39") Housing Board Size: 75 X 75Mm(2.95 X 2.95") Locator Pin Length: 110Mm / 4.33" Package Includes: 1 X Drill Guide Set