The Best Hair Clipper Sizes In Mm Ideas. The curliness of the hair is another. Web other factors, however, also affect the length of the cut hair:
Size 1 is 3/32 inch in size (2.4mm), size 1a is 1/8 inch (3.2mm) and size 1 1/2 is 5/32 inch (4mm). With each different clipper attachment, the length of the hair after it’s cut increases by 1/8″. Most hair clipper sets come with eight attachments, though some may come with more.
