Description: Accurate and Multi Angle: This cable railing drilling jig dowel allows you to drill 90 degree horizontal vertical straight hole and 30&45 degree angled hole for the wood railing post. The success of DIY cable railing projects depends on drilling straight and accurate holes. Now you can add a whole new level of accuracy with this drill jig when drilling railing post holes with your hand drill. Heavy duty material: Choose premium aluminum alloy material with excellent surface oxidation treatment, which has great performance on rust resistance, wear resistance and durability. Various hole sizes: This cable railing drill template jig offers 4 different size track holes (fit 3/16,1/4, 5/16,3/8 drill bit), those are compatible with most cable railing kit hardware. The hole drilled by 1/4 inch drill fit most 1/8" cable railings lag screw. Safe and easy operate: This handrail drill work with 6 woodworking F clamp no shaking and safer drilling angle 30&45 inclined hole and 90 horizontal vertical straight hole for 4x4 posts and lager clamp for lager posts. F clamp is not included. Portable: This drill for cable railing is light and small pocket carrying, compact and easy to carry. Size Chart: Angle Drill : 150x70x26.5mm/5.91x2.76x1.04inch Drill Bits: 89mm/3.50inch 102mm/4.02inch 113.5mm/4.47inch 126mm/4.96inch Package Includes: 1 Piece Angle Drill Or 1 Piece Angle Drill with 4 Drill Bits (Optional ) Note: 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 on-line shopping!