A 00 crochet hook is typically around 9.0 millimeters in size.
00 is a steel hook size. Manufacturers vary in their mm sizing. I found 00 hooks listed as 2.75 to 3.5mm If you have a particular hook and you need to know the mm sizing of it, I suggest you purchase a Crochet Hook Size Gauge Tool. The knitting needle ones do not give accurate sizing for a crochet hook. Annie's Attic sells these and I'm sure other stores do as well.
Crochet hooks come in various sizes. To figure out a project that you might want to crochet, find the project, see what size yarn is needed, and then check with the pattern, and see what the pattern requires for a hook size.As a general rule "steel" hooks are used for thread-weight "yarn" and those hooks run from 0.6 mm to around 3.0mm. You know that you have a "steel" hook, because it has a number on it, in addition to a size given in mm. 'Steel' hooks run from size 14 (0.6mm) to 00 (double zero, and 3.0mm)Then the "aluminum" hooks run from around 2.0mm all the way up to 16.0mm or larger. An aluminum hook can be easily identified because there is a letter on the hook, along with the mm sizing. So, 'aluminum' hooks run from B (2.25mm) to S (19.0mm). I guess there could be an "A" size, but it would be around the same as a size Zero or Double Zero in 'steel' hooks.
00 gauge is approximately 10 millimeters in diameter. It is commonly used for larger body piercings such as earlobes.
00 is smaller
Sizing of crochet hooks isn't really an exact science--unless there is a metric size given. As a crocheter, I have a fairly extensive collection of hook sizes. The smallest hook sizes are what are often referred to as "steels" vs aluminum. The steels are also given a number vs. a letter designation. The smallest steel is a #16 which is often around 0.60 mm (personally, I've never seen a 16--14 is the smallest I've seen and have). Then is a #14 @ 0.70mm/0.75mm. Steels then go to smaller numbers, but larger hooks. I have a 00, which is comparable to an aluminum "E" @ 3.50mm. Steel hooks are generally used for "thread-weight" sized yarn. So a #14 hook would be used for a thread-size 80-100. A #7 hook would be used for thread-size 10, and #5 hook for size 5-10 thread. (notice also, that thread size is larger the number, the smaller the size). Aluminum hooks (which can be made from most any material--such as bamboo, woods, etc), but traditionally made in colored aluminum, begin with size 'A' which is the smallest at 2.0mm to size 'S' which would be 19.0mm (approximately 3/4 inch--getting close to broom handle size here). Aluminum hooks are traditionally used for "yarn-weight" sized yarn. Those sizes run from Fingering (smallest), sock/baby, sport/baby, dk(double knit)/light worsted, worsted/afghan/aran, chunky/craft/rug, to bulky/roving, the largest sizing of yarn.
My best guess would be a large. It depends on the brand.
A zero is bigger than a double zero. Double zero is the smallest size you can get, rather than 00 slim.
it depends on what you like. but the average and/or normal size for gauges is a 0 or 00. a 0 is about the size of the eraser on a pencil. a 00 is a bit smaller than a dime.
Most likely a 00.
Not sure of the size but here are the Yamaha part numbers 3VD-13455-00-00 Plug 214-11198-01-00 Gasket Hope This Helps.
thin as a stick is if your wear size 00 or size 0 maybye size 2
$2:00