How do I go about measuring my Weymouth mouthpiece length, thickness and shank length?

There are various measurements to consider when sourcing and assessing the correct size of bit including length, thickness, shank length and design.

1) Mouthpiece Length: The measurement is taken by placing the bit on a flat surface and pulling the rings apart so the bit is at its maximum length. The measurement is taken along the full length of the mouthpiece from the inside edge of the cheek to the inside edge of the opposite cheek and can be measured in inches or centimetres.

2) Mouthpiece thickness: This measurement is taken at the widest part near to the cheek just before the hole that the ring slides through. Again, if you put the bit on a flat surface, you can slide a tape measure below this point and, if you look from above, you can see the thickness. The most accurate way to measure the thickness is using a set of calipers, which are widely available.

When sourcing a Weymouth, there are a couple of additional measurements to consider as demonstrated in the picture below:

1) Shank Length (lower): This measurement is taken from below the mouthpiece to the bottom of the shank (not to the bottom of the loose ring) and is generally done in centimetres; 5cm, 7cm and 9cm are the options that are available within the Neue Schule Collection.

2) Shank Length (upper): In the Neue Schule Collection this measurement has been scaled according to the lower shank length of the Weymouth.