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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Perforation Cutter 28 235B

Product ID: 100243283

Details

Blade Length
28 Millimeters
Blade Material
Stainless
Brand
OLFA
Color
イエロー
Handle Material
Item Length
28 Millimeters

🔄One-touch blade change

↔️Ambidextrous design

✂️28mm precision blade

15113CFA

Duties & taxes included

In stock

Sold byAmazon Cote D' IvoireDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

✂️ Cut above the rest—perforate like a pro, anytime, anywhere!

EFFORTLESS BLADE SWAP - Switch blades instantly with a one-touch mechanism—no downtime, just seamless creativity.
DESIGNED FOR EVERY HAND - Ambidextrous usability ensures comfort and control whether you're left- or right-handed.
DURABLE STAINLESS STEEL EDGE - 28mm stainless steel blade delivers long-lasting sharpness for consistent, clean cuts.
PRECISION PERFORATION MASTERY - Create flawless perforations on paper, film, and vinyl for professional-grade ticket making and crafts.
AWARD WINNING AESTHETIC FUNCTION - Proud recipient of the Good Design Award, combining style with superior performance.

The OLFA Perforation Cutter 28 235B features a 28mm stainless steel blade designed for precise perforations on paper, film, and vinyl. Its one-touch blade replacement system and ambidextrous design make it ideal for both left- and right-handed users. Recognized with the Good Design Award, this retractable cutter combines durability, style, and ease of use, making it a top choice for ticket making and paper crafts.

Specifications

ASIN	B077Y6H5BK
Best Sellers Rank	#5,328 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #2 in Paper Roll Cutters #10 in Quilting Rotary Cutters
Blade Length	28 Millimeters
Blade Material	Stainless Steel
Brand	OLFA
Brand Name	OLFA
Color	イエロー
Customer Reviews	4.7 out of 5 stars 3,504 Reviews
Global Trade Identification Number	04901165301079
Handle Material	アクリロニトリルブタジエンスチレン
Handle Type	Manual-Retractable
Item Length	28 Millimeters
Manufacturer	B077Y6H5BK
Manufacturer Part Number	235B
Material	Stainless Steel
Material Type	Stainless Steel
Model Number	235B
Product Style	Retractable
Unit Count	1.0 Count

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