100% Australian Made & Owned

Cut cornice
like a boss.

Designed by plasterers, for plasterers. The Mitre BOSS makes cutting cornice faster, easier, and more accurate — with integrated tool holders and built-in magnets to keep every cut consistent.

Shop Now See it in action

Trade tough Aussie made

Mitre BOSS cornice mitre box on site with tape measure and pencil

BOX $129 · BUNDLE $159

Built for the site

Designed with 20+ years of experience of knowing what works on site.

Cornice cut & install compilation — watch the Mitre BOSS in action on site · see it on Facebook

Mitre BOSS built-in magnets and integrated tool holder

Mitre BOSS cornice mitre boxes in blue and orange — Australian made

Mitre BOSS retail display — stocked in-store

Gear up

The box, the bundle, and the hand tools to match. Accessories ship free with any box.

✓ 30-day money-back guarantee ✓ Australian made ✓ Secure Stripe checkout

Postage: $30 flat Australia-wide · New Zealand $41 · hand tools ship free with any box.

Just landed

The Mitre BOSS Saw has arrived

Our 9 TPI (teeth per inch) handsaw is perfectly suited to cutting cornice — clean cuts with no paper tears. It's now included in the Boss Bundle at no extra cost, or grab it on its own for $13.99.

The Tool

Why tradies pick the Mitre BOSS

Designed by plasterers, for plasterers. The MITRE BOSS makes cutting cornice faster, easier, and more accurate. Built tough for the demands of the trade — it's a practical, time-saving tool that helps deliver professional results on every job.

✓Cuts 55mm, 75mm & 90mm cornice — versatile across a wide range of plastering applications.
✓Built-in magnets hold your tape measure in place when cutting external mitres for improved accuracy and consistency.
✓Integrated holders for your saw, pencil, and tape measure — essential tools always within reach.
✓100% Australian made — designed and built by tradies who know what works on site.

Specifications

Cornice sizes: 55mm / 75mm / 90mm+
Overall dimensions: 350 × 250 × 120 mm
Weight: 1.6 kg
Cut types: Straight + angle cuts
Tool holders: Saw, pencil, tape measure
Magnets: Built-in for tape measure
Cut angles: 45° + obtuse · internal & external
In the box: Free pencil + sticker
Warranty: 30-day money-back
Origin: Australian Made