7-Inch Aluminum Alloy Triangle Square Ruler | 14 Drill Hole Guides
7-Inch Aluminum Alloy Triangle Square Ruler | 14 Drill Hole Guides
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Short Product Description
Short Product Description
The 7-Inch Aluminum Alloy Triangle Square Ruler is an indispensable, multi-functional layout tool for carpenters, DIY builders, and metalworkers. Measuring 18x18.5cm and weighing a solid 182g, this heavy-duty rafter square features laser-etched metric scales, precise angle markings, and 14 integrated drill hole guides (Ø3 to Ø15) for perfect dowel alignment. Available in-stock at Sun Cheong Computer Co. Ltd. (新昌電腦有限公司) in Sham Shui Po, it is the ultimate all-in-one measuring and marking tool for your workshop.
Key Features
Key Features
- 14 Integrated Drill Guides: Features circular cutouts from Ø3mm to Ø15mm for instant drill bit sizing and precise dowel hole marking.
- Laser-Etched Metric Scales: High-contrast white markings on a matte black background ensure the measurements will never rub off or fade.
- Solid Aluminum Alloy: Forged from thick, rust-proof aluminum weighing 182g, providing extreme durability and resistance to bending.
- Thick Lipped Edge: Allows the square to sit flush against lumber edges for accurate 90° marking and serves as a sturdy circular saw guide.
- Multi-Angle Protractor: Includes clearly marked angles from 0° to 90° along the hypotenuse for rapid rafter and stair layout.
Full Product Description
Full Product Description
Multi-Functional Layout and Drilling Tool
This 7-inch triangle square goes far beyond basic 90-degree and 45-degree angle marking by integrating 14 precision drill hole guides directly into its body. Ranging from Ø3mm to Ø15mm, these circular cutouts allow you to quickly size drill bits or mark perfectly centered dowel holes without needing a separate sizing gauge. Whether you are framing a roof, laying out stair stringers, or building custom furniture, this all-in-one tool drastically speeds up your measuring and marking workflow.
Heavy-Duty Aluminum Alloy Construction
Weighing a substantial 182 grams, this rafter square is forged from a solid block of high-grade aluminum alloy, ensuring it will never bend, warp, or rust on the job site. The thick, lipped edge allows you to brace the square firmly against any piece of lumber for perfectly straight crosscuts, acting as a reliable saw guide for circular saws. Furthermore, the high-contrast, laser-etched white markings on the matte black anodized finish guarantee excellent readability even in dimly lit workshops or glaring outdoor sunlight.
Pro Tip from Our Technicians
Always use the "PIVOT" point located at the right-angle corner to mark precise angles quickly. Our Sham Shui Po DIY specialists recommend hooking the lipped edge against your wood, holding the pivot point firmly with your thumb, and rotating the square until the desired angle on the hypotenuse aligns with the edge of your board—this is the fastest way to mark rafter cuts without a protractor.
Technical Specifications
Technical Specifications
- Product Type: Triangle Square / Rafter Square
- Size Category: 7-Inch
- Dimensions: 18cm x 18.5cm
- Weight: 182g
- Material: Aluminum Alloy (Anodized Matte Black)
- Measurement System: Metric (Centimeters / Millimeters)
- Drill Hole Guides: 14 Holes (Ø3, Ø3.5, Ø4, Ø5, Ø6, Ø7, Ø8, Ø9, Ø10, Ø11, Ø12, Ø13, Ø14, Ø15)
- Markings: Laser-Etched (Angles, Rafter Cuts, Metric Ruler)
Delivery Options
Delivery Options
- Local delivery within Hong Kong and in-store pickup.
- Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
- Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
- Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
- In-store pickup details (location and time) will be confirmed by email or phone message.
- Delivery times are estimates and may be affected by weather or unforeseen circumstances.
FAQ Section
FAQ Section
- Are the measurements on this triangle square in inches or centimeters?The measurements on this specific triangle square are laser-etched in the Metric system (centimeters and millimeters), making it ideal for standard woodworking in Hong Kong.
- What are the round holes in the middle of the square used for?The 14 round holes (ranging from Ø3 to Ø15) act as a drill bit sizing gauge and allow you to mark perfectly sized circles or dowel holes directly onto your workpiece.
- Can I use this square as a guide for my circular saw?Yes, the thick aluminum construction and the lipped edge allow you to brace it firmly against a board, providing a perfectly straight and safe guide for a circular saw.
- Will the white numbers rub off after heavy use?No, the white numbers and markings are laser-etched directly into the anodized aluminum alloy, ensuring they will not rub off, peel, or fade over time.
- Can I buy this aluminum square today at your Sham Shui Po store?Yes, this 7-inch aluminum triangle square is regularly stocked at our Sun Cheong Computer Co. Ltd. physical store for immediate purchase and pickup.
Target Users / Applications
Target Users / Applications
- Carpenters and roofers needing a durable, weather-resistant rafter square for outdoor framing.
- DIY furniture makers requiring precise 90-degree marking and quick dowel hole sizing.
- Metalworkers needing a heat-resistant, thick aluminum guide for marking and cutting metal tubing.
