Features Rugged: This adjustable drill guide attachment features a keyed chuck, tapered depth control shaft and limit ring, spring reset, reversible chuck holder, built in V groove, centering and adjustable fence. Larger Chip Discharge Volume: This woodworking drill locator has a larger chip discharge volume, faster and smoother chip discharge, more labor saving drilling, and improved work efficiency. Clear And Accurate Scale: This hole punch template guide tool features a clear and accurate scale that adjusts to the thickness of the wood for accurate alignment., and can be used for handcrafting, furniture making, woodworking, etc. Excellent Aluminum Alloy Material: This drilling jig attachment is made of excellent aluminum alloy material, which is sturdy and abrasion resistant and can be used for a long time to make drilling vertical boards easier. The design of the woodworking drill hole locator makes drilling wood holes easier, straighter, and more accurate. Easy To Install: This portable drilling guide is easy to install, without the need for complicated operations and tools, you just need to put it together, which is very easy to use. 1. Rugged: This adjustable drill guide attachment features a keyed chuck, tapered depth control shaft and limit ring, spring reset, reversible chuck holder, built in V groove, centering and adjustable fence. 2. Larger Chip Discharge Volume: This woodworking drill locator has a larger chip discharge volume, faster and smoother chip discharge, more labor saving drilling, and improved work efficiency. 3. Clear And Accurate Scale: This hole punch template guide tool features a clear and accurate scale that adjusts to the thickness of the wood for accurate alignment., and can be used for handcrafting, furniture making, woodworking, etc. 4. Excellent Aluminum Alloy Material: This drilling jig attachment is made of excellent aluminum alloy material, which is sturdy and abrasion resistant and can be used for a long time to make drilling vertical boards easier. The design of the woodworking drill hole locator makes drilling wood holes easier, straighter, and more accurate. 5. Easy To Install: This portable drilling guide is easy to install, without the need for complicated operations and tools, you just need to put it together, which is very easy to use. Spec: Item Type: Woodworking Drill Locator Material: Aluminum Alloy Application: Adjustable pin hole drilling guide for different thicknesses and easy to make joints. PackageList: 1 x Base 1 x Positioning Plate 1 x Bearing Fixing Plate 1 x Drill Clamp 1 x Stroke Fixing Ring 2 x Columns 2 x Positioning Columns 1 x Wrench 2 x Positioning Pins 2 x Screws 5 x Knobs 1 x Rotating Shaft 1 x Manual Package List 1 x Base 1 x Positioning Plate 1 x Bearing Fixing Plate 1 x Drill Clamp 1 x Stroke Fixing Ring 2 x Columns 2 x Positioning Columns 1 x Wrench 2 x Positioning Pins 2 x Screws 5 x Knobs 1 x Rotating Shaft 1 x Manual