Feature: 1. Product Usage: This drill hole guide jig is designed to drill straight or diagonal holes at angles of 30 degree, 45 degree, and 90 degree, allowing for accurate drilling on flat, round parts, and corners. 2. Multiple Holes: This drilling hole guide jig provides 4 different hole sizes, 3/16 inch, 1/4 inch, 5/16 inch, and 3/8 inch, with detachable drill bushing design to meet different drilling needs. 3. Extension Rod: This portable drill hole locator is equipped with an extension rod, which can quickly and easily locate, greatly improving the efficiency of drilling, making it convenient and practical. 4. Aluminum Alloy: This drilling template block is made of excellent aluminum alloy material, with CNC machining and anodized finish, has good erosion resistance and lasting performance. 5. Accurate Design: With exquisite workmanship, this drill hole guide jig has a reasonable structure and standard sizes, ensuring accurate and reliable drilling. You can use it with confidence. Specification: Item Type: Drill Hole Guide Jig Material: Aluminum alloy Punching Angle: 30 Degree, 45 Degree, 90 Degree Hole Size: 3/16in (4.76mm), 1/4in (6.35mm), 5/16in (7.93mm), 3/8in (9.52mm). Package List: 1 x Drill Hole Guide Jig 1 x Extension Rod