Precision angled drill guides for cable railing and deck posts — available in 30°, 45° and 90° Key features Three angle options: 30°, 45° and 90° to match stair rails and horizontal deck posts for accurate angled drilling. Four hole sizes in each guide: 3/8" (9.52 mm), 5/16" (7.93 mm), 1/4" (6.35 mm), 3/16" (4.76 mm) — fits most cable railings, cable protection sleeves and pull screws. Secure, deviation-free drilling: guides hold the bit steady at the selected angle for consistent, straight holes. Compact and efficient design: small, easy to carry on the jobsite or in a toolbox for fast setup and use. Why you need it Eliminates guesswork and alignment errors when drilling angled holes for cable rail systems and rail posts. Reduces rework and wasted materials by ensuring each hole is drilled at the exact required angle. Speeds up installation with ready-made angle options and commonly used hole sizes built into each guide. Typical applications Installing horizontal 90° deck posts and through-post cable termination holes. Drilling 45° or 30° holes on stair railings for clean, correct cable routing. Preparing holes for cable protection sleeves and pull screws during new installs or maintenance. Performance and compatibility Each guide offers four commonly used diameters to accommodate the majority of cable hardware and sleeves. Designed to provide repeatable, accurate holes on-site — ideal for contractors, fabricators and experienced DIYers who need reliable alignment without complex setup. Available as individual angled guides (30°, 45°, 90°). Compact, jobsite-ready tools that help you drill accurately and consistently.