13
Digits in a standard JAN barcode
How to read Japanese product model numbers
A model number is not a name. It is a compressed spec sheet. Three systems — tools, model kits, barcodes — side by side.
4°
Feed angle (KTC catalog figure)
Reading the KTC nepros NBR290 from its specs
A small 1/4-inch ratchet with 90 teeth and a 4° swing. What it is, who it suits, and what to check before buying.