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Technologies · Cutting tools

Cutting tools: Penett® & APIO® scoring wheels

A cutting wheel is not a commodity — it is the single tool that decides your edge quality, your yield and your downtime. MDI wheels are built to run predictably, shift after shift.

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MDI Penett notched glass cutting wheel
Interactive tool
Glass Cutting Wheel Finder
Five questions — recommendation with wheel, angle, diameter, axle and holder.
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Capabilities

What our cutting tools do

Stop paying per wheel — start paying per kilometre of cut.

Patented notch geometry

APIO® and Penett® notches are laser-cut — no micro-fractures, perfectly uniform, and legally impossible to copy.

Deep median crack, easy break

On glass up to 2 mm, Penett® creates a crack of up to 90% of glass thickness — no slipping, clean edges even on coatings.

Same material, batch after batch

Highest-grade tungsten carbide and polycrystalline diamond to identical spec — the 1000th cut behaves like the first.

100% camera-checked

Every single notch is measured by image processing. Out-of-spec wheels never leave the building.

Key specifications

Process window

0.05–12 mmglass thickness covered by APIO® & Penett®
5–30×longer lifetime — 150–300 km of cut on 4 mm float (PCD)
90%median crack depth on glass up to 2 mm (Penett®)
Since 1935Mitsuboshi Diamond glass cutting tools
Manual cutting tools

Very high edge quality

Learn more about MDI’s manual cutting tools designed for a wide variety of applications.

Penett and APIO cutting wheels

Cutting wheel (APIO® and Penett®)

MDI’s cutting wheels are characterized by their high quality and long service life. In addition to the conventional carbide or diamond cutting wheels, we also offer our proven Penett® and APIO® cutting wheels.

Our APIO® wheels are true all-rounders and achieve very high quality and edge strength in conventional glass cutting processes, regardless of the glass type. The formation of chipping when placing the wheel and at crossing points is prevented by the special grinding.

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Holder and axles

MDI’s cutting wheel holders are available in a wide variety of designs and in a large selection. They are closely geared to customer requirements and can also be used without any problems in systems from other manufacturers.

Our axes made of carbide or diamond are the perfect complement to the MDI cutting wheels and holders, as they are optimally matched in terms of quality and service life.

Holder and holder connections & Mrcs® (pre-assembled sets): our holders are available in standard and precision versions. Of course, we also offer Holder Joints for the use of our cutting tools on equipment from other manufacturers.

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MDI cutting wheel holders and axles
Mitsuboshi manual glass cutter

Mitsuboshi glass cutter

Manual glass cutters from MDI are multifunctional and of high quality. They are available with all types of wheels including Penett® and MicroPenett® and are suitable for making both straight cuts and cutting contours.

Hints and tips for handling our manual glass cutters can be found here.

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Linear cutter

The MDI linear cutter is a useful tool for straight manual cutting of glass and other brittle materials. The linear cutter can be equipped with different MDI cutting tools according to the respective requirements.

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MDI linear cutter
Contract processing

Need scoring wheels or contract cutting?

From cutting-tool supply to full contract processing — talk to us about your glass and your cut.

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Let’s talk

Looking for the right cutting wheel? Let’s talk.

Dr. Christoph Hermanns
Dr. Christoph HermannsGeneral Managerchristoph.hermanns@mdi-ap.com
Unal Eren
Unal ErenSales & Marketingunal.eren@mdi-ap.com
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