Master Angled Drilling with Precision (30/45/90): Stop guessing and start drilling like a pro. This guide features three fixed drilling angles (30, 45, and 90) specifically engineered for cable railing installations on staircases and decks. Achieve strictly perpendicular or perfectly angled holes every time, ensuring your cable lines run straight and true through wood posts or metal balusters<br>Industrial-Grade Aluminum Built to Last: Forget about cheap plastic guides that melt, flex, or wear out after a few uses. Our jig is CNC-machined from solid aircraft-grade aluminum alloy with an anodized finish for superior corrosion resistance. It features hardened steel bushings that prevent the drill bit from eating into the guide, guaranteeing consistent accuracy for thousands of holes without wobbling<br>Versatile 4-Size Multi-Hole Design: One tool covers your entire project. The block includes four distinct guide hole sizes (3/16", 1/4", 5/16", 3/8"), compatible with most standard lag screws and cable railing kits on the market. We also include 4 corresponding Titanium-plated HSS drill bits in the package, offering a complete grab-and-go solution that saves you the hassle of matching bit sizes<br>Rock-Solid Stability on Any Surface: Designed for real-world complexity. The bottom features a precise 90 V-groove, allowing the jig to sit securely on round posts, pipes, and corners without slipping. Whether you are working on flat 4x4 posts or cylindrical handrails, simply clamp it down (F-clamp recommended) to eliminate drill bit walking and material tearing<br>Portable & User-Friendly for Renovation: Suitable for the weekend warrior and professional contractor alike. Compact enough to fit in your pocket (4.13" x 2.75"), this portable tool transforms your hand drill into a precision instrument. Suitable for deck building, stair renovation, and custom woodworking projects where a bulky drill press simply cannot reach