齒距 (mm) HTD 齒距 (mm) STD 齒距 (mm)
MXL 2.032mm 3M 3mm S3M 3mm
XL 5.080mm 5M 5mm S4.5M 4.5mm
L 9.525mm 8M 8mm S8M 8mm
H 12.700mm 14M 14mm S14M 14mm
XH 22.225mm 20M 20mm
XXH 31.750mm