Two versions of the pdf file.
One page with all hexagons, one page with hexagons and lines. you can print these out as many times as you like. Hole-punch them to put into your files or cut out your drawings to glue into your lab book.
This is also available as an A4 pad to save you the need to print the sheets off!
I've tried to read your mind and think of any problems you might have, I've tried to answer them all here https://primrosekitten.org/faqs/