How many perforations per inch?

I cut a strip and measured: there are 7 perforations per inch; Most of the paper is cut, the part not cut is very very small compared to the part that is cut. Basically, the cutter wheel has 7 notches per inch on the wheel. The tiny notches don't cut.

Is this tool can use as HandyScore when i score to cardboard box ?

I bought mine March 2020 and I have used it many times on cardboard to kind of score where I want to cut, I do have to go over it with a knife because the teeth are only so long but it has been helpful to me.

how straight does it cut? if I’m going along the full length of a sheet is it hard to keep a straight line without using a straight edge?

Thank you for contacting us. You have to control whether you can cut straight. I think it is necessary to get used to using a straight line. Please refer to the following URL for usage. (Example of use) https://www.olfa.co.jp/products/productcategorydetail/6/315

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OLFA Perforation Cutter 28 235B

Product ID: 366309336

Details

Material
Plastic
Brand
Olfa
Colour
Black Silver
Handle Material
Plastic
Blade Material
Stainless
Item Weight
30.5 Grams

🔄One-touch blade replacement

↔️Ambidextrous design

✂️28mm precision rotary blade

A$39

Duties & taxes included

In stock

Sold byAmazon AustraliaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✂️ Cut through the ordinary—perforate like a pro!

DESIGNED FOR EVERY HAND - Ambidextrous grip ensures comfort and control for both left- and right-handed pros.
LIGHTWEIGHT YET DURABLE - At just 30.5 grams, it’s the perfect balance of portability and robust performance.
EFFORTLESS PRECISION CUTS - Create flawless perforations in paper, film, and vinyl with surgical sharpness.
SWIFT ONE TOUCH BLADE SWAP - Change blades in seconds—no tools, no hassle, just seamless workflow.
AWARD WINNING MODERN DESIGN - Good Design Award winner that blends style with functionality on your desk.

The OLFA Perforation Cutter 28 235B is a precision tool featuring a 28mm stainless steel rotary blade designed for clean perforations in paper, film, and vinyl. Its ambidextrous plastic handle and one-touch blade replacement system make it ideal for both left- and right-handed users. Recognized with the Good Design Award, this lightweight cutter (30.5g) is a top choice for ticket making and paper crafts, boasting a 4.6-star rating from over 3,400 users.

Specifications

ASIN	B077Y6H5BK
Best Sellers Rank	#121,532 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #1 in Paper Craft Tools
Blade Material	Stainless Steel
Brand	Olfa
Brand Name	Olfa
Colour	Black, Silver, Yellow
Country of Publication	USA
Customer Reviews	4.6 out of 5 stars 3,445 Reviews
Global Trade Identification Number	04901165301079
Handle Material	Plastic
Item Weight	30.5 Grams
Manufacturer	OLFA
Manufacturer Part Number	235B
Material	Plastic
Material Type	Plastic
Model Number	235B
Number of Packs	1
Product Style	Modern

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