OX Pro 305mm Combination Square

The OX Pro 305mm combination square is a measuring and marking tool with a 305mm (12 inch) stainless steel blade and a cast zinc head in a black finish. The blade is rust resistant and carries permanent etched metric and imperial graduations, so it reads both ways. The knurled fixing knob locks the blade firmly in the adjustable stock, and the head includes a built-in spirit level and a hardened scriber for marking.

Key Features

• 305mm (12 inch) stainless steel blade
• Etched metric and imperial graduations
• Cast zinc head with a durable black finish
• Knurled fixing knob for a firm lock
• Built-in spirit level and hardened scriber
• Verifies 90 and 45 degree angles

Specifications

• Brand: OX
• Series: Pro Series
• Blade: 305mm stainless steel
• Graduations: metric and imperial, etched
• Head: zinc alloy with black finish
• Features: 90 and 45 degree angles, spirit level, scriber

Applications

• Marking and measuring in woodworking and metalworking
• Verifying 90 and 45 degree angles
• Checking level on surfaces and edges
• Scrbing lines for cuts

What You Need To Complete The Job

Pair the square with a pack of carpenters pencils for marking, and add a long level to the kit for setting out. For a longer reach, the OX 400mm combination square is the larger option. More measuring gear is under Carpentry Tools.

Frequently Asked Questions

What is the difference between the 305mm and 400mm OX squares?

The two squares are the same design at different blade lengths. The 305mm (12 inch) is the compact everyday version, easy to carry and use on smaller work, while the 400mm gives a longer rule for bigger layout tasks. Pick the length that matches the work you do most.

Why does the blade have both metric and imperial?

Having both scales etched on the one blade means the square works with metric and imperial dimensioned material, which is useful on a mixed site. The markings are etched in, so they stay readable for the life of the tool.

How does the knurled knob work?

The knurled fixing knob locks the blade in position in the adjustable stock. You slide the blade to set a depth or height, tighten the knob, and the blade holds firmly while you mark or check. It lets you set the square and keep it set.

Can I use this square on metal work?

Yes. The listing covers woodworking, metalworking and general construction. The stainless blade resists rust, and the 90 and 45 degree references suit marking out on metal as well as timber, which is why it is cross listed in Metal Roofing Tools.