Duke Tools Triangle Square Pocket Speed Square

Duke Tools Triangle Square Pocket Speed Square

Compact, durable, and engineered for precision — the ultimate pocket-sized layout tool every tradie needs.

Product Description

The Duke Tools Triangle Square Pocket Speed Square offers compact, high-precision angle referencing for on-site carpentry and fabrication, featuring a triangular anodised aluminium body (Alloy 6061-T6, Type II anodising to MIL-A-8625 for 20-30 µm oxide layer thickness) that delivers corrosion resistance in humid Australian conditions while maintaining dimensional stability up to 150°C.

At 68 mm per side with a ±0.5° measurement tolerance—aligned with AS/NZS 2639 tolerances for general engineering squares—this tool enables accurate marking of 0°-90° angles, including common rafter pitches (e.g., 30°-45° for hip/valley cuts), via deep laser-etched graduations on all four edges for visibility under 50 lux workshop lighting. The chamfered edges (0.5 mm bevel) facilitate flush scribing against timber or metal without slippage, supporting dual metric (mm) and imperial (inches/16ths) scales. Weighing just 85 g, its bright red finish enhances tool retrieval in cluttered job sites.

Key Features & Benefits

• Anodised Aluminium Construction: Type II anodising on 6061 alloy provides a Vickers hardness of 100-150 HV and salt-spray resistance exceeding 336 hours (ASTM B117), preventing galvanic corrosion in coastal Australian environments.
• Precision Angle Tolerance: ±0.5° accuracy across 0°-90° range, with etched reference lines at 15° increments, ensures compliance with AS/NZS 2639 for layout tools and minimises cumulative errors in multi-cut sequences.
• Multi-Sided Laser Etching: Deep-etched markings (0.1 mm depth) on four faces resist wear from 1,000+ scribing cycles, offering bidirectional readability for left/right-handed users in confined spaces.
• Chamfered Edge Design: 0.5 mm bevelled borders reduce binding on curved surfaces, enabling precise pencil or knife-line transfers with <0.2 mm deviation over 68 mm length.
• Dual-Scale Versatility: Integrated metric (0-68 mm) and imperial (0-2-11/16″) graduations support hybrid projects, aligning with NCC requirements for dimensional accuracy in residential framing.

Specifications

Package Contents

1 × Duke Tools Triangle Square Pocket Speed Square

FAQs

Get expert advice, in-depth answers, and practical tips to make the most of your Duke Tools Triangle Square Pocket Speed Square. This guide addresses common queries on usage and maintenance.

How do I check if the pocket speed square is truly square?

Draw a line along the 90° edge on scrap timber, flip the tool 180°, and re-mark; lines should overlap within 0.5 mm over 68 mm. 

Can this speed square be used as a saw guide for circular saws?

Yes, align the 90° edge with the base plate and clamp if needed; the 15 mm width supports blades up to 190 mm diameter without overhang, but limit to crosscuts under 50 mm depth to avoid vibration-induced errors (<0.2° wander).

What angles are pre-marked for common roofing tasks in Australia?

Etched lines include 30° (common pitch for Colorbond roofs), 45° (hip rafter), and 60° (valley cuts), calculated via hypotenuse tables for spans up to 6 m; use with a bevel gauge for compound angles.

Is this tool suitable for marking on metal or only timber?

Optimised for timber and MDF, but chamfered edges prevent gouging on aluminium sheet (up to 3 mm thick); for steel, pair with a scribe—avoid abrasive surfaces that could dull etchings after 500 cycles.

Recommended Uses

• Framing layouts: Establishing 90° corners in wall studs. 
• Roofing pitches: Marking rafter angles on trusses using Australian hardwood like spotted gum.
• Decking installation: Squaring balustrade posts and scribing 45° mitres for seamless joins.
• Staircase construction: Transferring 34°-38° riser angles. 
• Cabinetry assembly: Aligning door hinges with precise 90° reveals in flat-pack kitchens.
• Shed building: Checking squareness of floor frames on concrete slabs in backyard projects.
• Fencing repairs: Notching posts for 30° braces in rural boundary installations.
• Boat building: Layout for hull strakes using marine plywood in coastal workshops.
• Furniture making: Bevel cuts for angled legs on outdoor benches from recycled timber.
• Landscaping: Marking paver edges at 45° for curved garden paths.
• Renovation tiling: Guiding 90° grout lines in wet areas.
• Prototype engineering: Angle transfers for sheet metal brackets in garage fabs.
• Arbor construction: Hip rafter marking for garden shade structures.
• Verandah extensions: Squaring eaves and fascia boards.
• Pallet disassembly: Precise cuts for upcycling into raised garden beds.