Ironbark 3 Piece Set - 5” 90° Try Square, 6" 45° Miter Square, & 45/90 Calibration Triangle

At 3 mm (0.118″) thick, the stainless steel body offers exceptional rigidity and dimensional stability, making it far less susceptible to wear, impact damage, or distortion than lighter materials. This stability allows the triangle to maintain its accuracy over years of use in demanding workshop environments.

Accuracy is where the Ironbark Calibration Triangle truly stands apart. Squareness exceeds DIN 875/2, making it more accurate than any other calibration or setup triangle currently available. Both the 90° and 45° reference angles are held to this exceptional standard—an achievement unmatched by competing products. In fact, the 45° angle accuracy is comparable to DIN 875/2 specifications for 90°, providing a level of precision previously unavailable in compact calibration triangles.

The edges feature a purpose-designed finish that allows for close, repeatable contact when setting or checking try squares and miter tools. This ensures reliable referencing without rocking or false readings.

With compact overall dimensions of 75 mm × 75 mm (2.95″ × 2.95″), the triangle is small enough to set tool perpendicularity directly at the machine, yet large enough to accurately calibrate most try squares to within 50 microns (0.0020″) over a 150 mm (5.9″) length.