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12-inch combination square with steel blade, metric and SAE markings, brass thumbscrews, bubble vial, cast aluminum head

Big Horn

Big Horn 19570 12-Inch Combination Square Leveling

SKU CH-X30Y-YDZ2X

A 12-inch combination square with etched metric and SAE markings, brass thumbscrews and a built-in bubble vial for accurate layout work

  • 12-inch blade with metric and SAE etched markings for precise layout
  • Built-in bubble vial enables quick level checks on the job site
  • Durable steel blade resists wear during rigorous workshop use
  • Brass thumbscrews provide secure, tool-free adjustment
  • Hardened screw-in scriber stays fixed and will not fall out

12-Inch Combination Square

The Big Horn 19570 is a 12-inch combination square built for layout, marking and angle checking on the job site or in the workshop. Its stainless steel blade carries metric graduations on one face and SAE markings on the other. A cast aluminium head houses a hardened screw-in scriber and an acrylic bubble vial for level and plumb reference. Brass thumbscrews lock the blade securely during use.

What to verify before ordering

Confirm that a 12-inch blade length suits the typical workpiece dimensions you encounter. The tool provides both metric and imperial scales, so ensure your drawings or plans use one of those systems. No power source, battery or calibration certificate is required for operation. The product carries a California Proposition 65 warning for chemicals known to cause cancer and reproductive harm.

Durability and handling

The steel blade resists wear from repeated marking and the acrylic vial is designed to withstand rough handling. Brass thumbscrews and a hardened scriber reduce the risk of stripped threads or lost components. In normal use the square adds negligible weight to a tool belt and draws no power. No thermal or noise considerations apply to this manual layout tool.

Highlights

  • 12-inch blade with metric and SAE etched markings for precise layout
  • Built-in bubble vial enables quick level checks on the job site
  • Durable steel blade resists wear during rigorous workshop use
  • Brass thumbscrews provide secure, tool-free adjustment
  • Hardened screw-in scriber stays fixed and will not fall out

Specifications

BrandBIG HORN

Questions about this item

What comes with the Big Horn 19570 12-Inch Combination Square and what must I buy separately?

The tool ships as a complete unit with a stainless steel blade, cast aluminium head, hardened screw-in scriber and acrylic bubble vial; no additional parts are required for basic measuring and layout tasks.

Which version of the Big Horn 19570 should I choose for metric and SAE readings?

The single 12-inch model already provides metric graduations on one side of the blade and SAE on the other, so no separate version selection is needed.

How does the 12-inch blade length help when I am checking a workpiece on the bench?

A 12-inch blade spans wider stock, lets you scribe longer reference lines and gives the bubble vial a longer base for more reliable level checks.

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