in fig3 with the length being predetermined and set by the yarn metering device 12 at a time prior to cutting the combination bit applying means and clamp member 56a descends as shown to clamp the yarn against the backing layer b otherwise when the yarn is cut it could be influenced by the continuing pneumatic gas flow a yarn bit stop described subsequently may be used in conjunction with the bit applying and clamp means 56a it will be noted that yarn metering device 12 allows the length of yarn to be released so that equal amounts of the yarn extend from the right yarn end to the combination bit applying and clamp means 56a as from the combination bit applying and clamp means 56a as from the combination bit applying and clamp means 56a to the cutting blade 30 this is necessary if the pile height is desired to be equal for each leg when the yarn is in position reciprocating section 34 shifts to the left to open gap or access opening 32 and cutting blade 30 descends through that gap to make contact with anvil 36 as shown in fig4 the yarn is thus effectively severed into a yarn bit the yarn bit has been placed in tufting relationship with the.