- Robust and lightweight: made from a lightweight aluminum alloy for durable performance and easy transport. The red anodized finish adds style while providing resistance. - Multiple drill angles: fixed angles of 30 degrees, 45 degrees and 90 degrees are ideal for 90-degree horizontal deck posts and 45-30-degree inclined stair rails. Enables precise and efficient drilling for a range of applications. - Four guide hole sizes: equipped with guide holes in four diameters—52 mm, 7.93 mm, 6.35 mm and 4.76 mm—compatible with most railing screws to accommodate different drilling needs. - Stable drilling with locking clamps: use with a locking C-clamp or F-clamp to eliminate wobble during drilling, delivering clean and professional results with reduced burrs or cracks. Use scenarios - Install deck railing posts on level decks with accurate 90-degree alignment for a sturdy railing system. - Build or retrofit stair rails with precise 30 and 45-degree angles for consistent spacing and appearance. - Handle projects requiring multiple screw sizes thanks to the four guide hole options, ensuring versatile applications across jobs.