Itoh Guillotine Knife Replacement Blades

Q: Is the Itoh 115 blade the same as a Polar 115 blade?

No. Itoh is 1410 x 150 x 13.7 mm; Polar is 1390 x 160 x 13.75 mm. The Polar body is 10 mm wider, so it will not enter an Itoh clamp.

Replacement knives for Itoh paper cutters. The Itoh 115 blade is 1410 × 150 × 13.7 mm — 20 mm longer and 0.7 mm thicker than the European 115 pattern. Ordering by model number without measuring is how Asian-market cutters end up with blades that will not fit.

Itoh sizes 115 is not one size Custom sizes All brands

Itoh models and sizes we grind

Model	Size L × W × T (mm)	Size (inch)	Notes
115	1410 × 150 × 13.7	55.51 × 5.91 × 0.54	150 mm body, 13.7 mm thick — European 115 blades will not fit

Why the Itoh 115 does not take a European blade

The number on the machine is the cutting width, not the knife. An Itoh 115, a Polar 115 and a Schneider 115 are all “115” machines and all take different blades:

Machine	Length	Width	Thickness	Will an Itoh blade fit?
Itoh 115	1410 mm	150 mm	13.7 mm	Reference
Polar 115	1390 mm	160 mm	13.75 mm	No — 10 mm wider body
Schneider 115	1350 mm	144 mm	10 mm	No — 60 mm short, 3.7 mm thin

If the machine has been rebuilt or the clamp replaced, the original drawing no longer describes it. Send the old blade and we measure it — that costs one email, a wrong blade costs six weeks.

Custom Itoh blades and Asian cutter sizes

from 1 pc

We grind to drawing for Itoh models not listed here, for Chinese and Taiwanese cutters sold under local brands, and for shops running mixed fleets where one blade has to serve two machines. Length, body width, thickness and hole pattern are all set from your measurement.

What we can change	Options
Length	Any length to your drawing
Width	90–160 mm
Thickness	To your measured value
Hole pattern	To drawing or sample, including slotted and countersunk
Steel	W18Cr4V (T1) / W6Mo5Cr4V2 (M2), HRC 60–64
Order size	1 piece for a trial

Send your Itoh measurements

Frequently asked

Is the Itoh 115 blade the same as a Polar 115 blade?

No. Itoh is 1410 × 150 × 13.7 mm; Polar is 1390 × 160 × 13.75 mm. The Polar body is 10 mm wider, so it will not enter an Itoh clamp.

Which steel should I choose for coated paper?

T1 for long uninterrupted runs on coated stock. M2 if the shop also cuts recycled or heavily filled paper, where a blade that resists nicks matters more than one that wears slowly.

Can you match the part number stamped on my old blade?

Yes. Send a photo of the stamping with the dimensions, or the old blade itself. We reproduce the geometry and can laser-mark your part number or brand on repeat orders.

← Back to the full size chart

Polar · Wohlenberg · Schneider · Maxima

Full size chart by machine brand

Brand names are used only to describe machine compatibility. We are not affiliated with, or an authorised distributor of, any of these manufacturers.

Send your Itoh model and the size on the old blade

You get a size confirmation, price and lead time within 24 hours. One piece is enough to start.

Send an Inquiry