Introducing the Woodpeckers BigCal Woodworking Calipers – the ultimate tool for ensuring piston-fit accuracy. Designed to provide precise inside and outside measurements, these calipers excel in woodworking applications. Unlike standard calipers used in metalworking, which max out at 6 inches and are graduated to the thousandth of an inch, BigCal offers an extended range with machinist-level accuracy. 

Woodpeckers BigCal: Precision Aligned Jaws for Accurate Measurements

BigCal's jaws align perfectly between the inside and outside references, allowing the precise transfer of critical dimensions. The dual-function nut not only secures the jaws firmly but also ensures a steadfast grip, squarely aligning the jaw with the blade to prevent any slippage or movement during measurement.

The fixed jaw is locked precisely at zero, enabling users to slide the adjustable jaw aside and utilize BigCal as a T-square. Additionally, the outside jaws' tips are milled precisely 1/8 inch square, enabling the registration of even the tiniest slots or grooves.

Dual Scale Graduations and Sturdy Construction for Accurate Measurements with Woodpeckers BigCal

With engraved scales with both 1/32 inch and 1 millimetre graduations, there's no need to deal with complicated dials or confusing fractions. Flip BigCal over, and you'll find the scales readable from either end, handy for measuring the depth of a mortise or groove. Woodpeckers simplified transferring dimensions with the scribing notch at the blade's end.

Crafted with precision from top-tier stainless steel, BigCal's blade remains sturdy even when fully extended. The jaws, meticulously milled from aircraft-grade aluminum blocks, boast the iconic Woodpeckers "Red" finish, ensuring your calipers maintain their pristine appearance for decades.

Woodpeckers BigCal: Precision Calipers for Any Measurement Task

Woodpeckers BigCal is available in a combo set with two sizes or there's the option to purchase each size separately.

The larger caliper enables measurement of inside or outside dimensions up to 24 inches (or 610 millimetres), surpassing most standard calipers by 18 inches. 

The smaller BigCal provides over 12 inches between the jaws. Both versions feature jaws that are 2-1/4 inch deep for outside measurements and 3/4 inch for inside measurements.

Additionally, each BigCal comes with a wall-mountable Rack-It, ensuring your new tool is always conveniently positioned and ready for use.