80pt is 28mm using online calculator...28mm is 1.1 inches so I am completely confused, can you help me out?

Confusingly, a "point" has more than one meaning. In typography a point is 1/72 of an inch, but in this context it means the same as a "mil" = 1/1000 of an inch. Hence 100 points = 1/10 of an inch, and 80 points is 0.08 inch, which is slightly less than 1/12 of an inch. In metric terms 80 points is 2 millimeters. (Here's the math: 1 inch is by definition exactly 25.4 millimeters and 0.08 x 25.4= 2.032 mm.)

Are these good t make journal cover and punch holes in for the spring?

They'll make a thick one-- they're nice and solid but you'll need a pretty hefty punch for it, so if your punch can't handle a good chunk of paper at a time maybe choose a lighter weight?

How difficult is it to cut these? With scissors or exacto knife? Or small tooth saw? Thanks

Not bad with a good utility knife. Needs more than one pass but a lot easier than 100pt chipboard. I have a Carl cutter and it cuts it with a couple passes whereas 100pt takes me like 10 passes with a good utility knife.

Is it 2.2mm or 2.2cm, it is confusing. How does this translate to Pts.? Thank you

mm. The higher the pt #, the thicker and harder the chipboard is. A cereal box is also chipboard and would be like 20pt I think and it’s pretty thin. 100 pt chipboard is about 3mm and is pretty sturdy stuff

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20枚ブックボード 10 x 12.5インチ 80 PT 0.06インチ厚バインダーボードチップボードデザイナーブックボードクラフト高耐久チップボードシート製本カバー

20枚ブックボード 10 x 12.5インチ 80 PT 0.06インチ厚バインダーボードチップボードデザイナーブックボードクラフト高耐久チップボードシート製本カバー

Product ID: 725749634

📏12.5-inch x 10-inch ideal size

📚20 durable chipboard sheets

🛡️2.2mm thick high-strength board

R2264

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Description

📚 Elevate your craft game with durable style and endless possibilities!

SMOOTH SAFE EDGES - Premium kraft paper finish with no sharp edges, combining safety with professional quality.
UNMATCHED DURABILITY - 2.2mm thick chipboard resists bending and wear, protecting your creations with confidence.
VERSATILE CRAFTING ESSENTIAL - Ideal for book covers, boxes, and DIY projects—elevate your workspace and impress peers.
PERFECTLY PORTABLE DIMENSIONS - Lightweight 12.5" x 10" size fits effortlessly in bags for on-the-go creativity.
BULK PACK FOR ENDLESS PROJECTS - 20 robust sheets ensure you never run out during crafting, bookbinding, or packaging.

This 20-sheet pack of 80PT kraft chipboard offers a perfect 12.5 x 10 inch size and 2.2mm thickness, delivering durable, smooth, and versatile boards ideal for bookbinding, crafting, and protective covers. Lightweight and portable, it’s designed for professionals and creatives who demand quality and convenience in every project.

Specifications

ASIN	B09ZTVYBF7
Amazon.co.jp での取り扱い開始日	2022/7/15
おすすめ度	4.7 5つ星のうち4.7 (145) var
サイズ	80PT
ブランド名	Lewtemi
メーカー	Lewtemi
型番	OB-220509-G
梱包サイズ	33.1 x 26.1 x 4.8 cm
梱包重量	1.96 キログラム
素材	クラフト紙
色	グレー
電池付属	いいえ
電池使用	いいえ

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