Fangrui Product Details Premium Construction: Made From High-grade Stainless Steel, This Concealed Hinge Jig Ensures Durability And Precision. It Features A Rubber Head For Increased Friction, Preventing Slippage And Ensuring Stable Operation During Drilling Or Installation Tasks. Versatile And Adjustable: This Jig Is Designed To Handle Wood Boards Ranging From 0-30mm In Thickness And Fits Most 35mm Cabinet Hinges. Its Adjustable Features Allow For Multi-angle Drilling, Making It A Versatile Tool For Precise Hinge Installations On Various Cabinet Designs. Efficient Mark Positioning: Equipped With A Hinge Hole Position Base And Double Bearings, This Tool Provides Clear Guidance For Drilling, Enhancing The Efficiency And Accuracy Of Hinge Installations. Its An Essential Tool For Achieving Professional-grade Precision In Carpentry. User-friendly Design: Compatible With Any Standard Drill, This Hinge Jig Is Crafted For Simplicity And Ease Of Use. It Includes Three-bearing Drill Sleeves For Precise Drilling, Adjustable Margins From