A thread forming system, comprising: a power tool, including: a tool housing; and a cutting head configured to form threads in an elongated piece of stock, the cutting head being configured to receive the piece of stock, and to move axially along a longitudinal axis of the piece of stock to form the threads; and a support device, including: a clamping device configured to secure a position of the piece of stock relative to the power tool for the cutting head to form the threads; a reaction arm device including a reaction arm coupled to the clamping device and configured to abut a retaining portion of the power tool to inhibit rotation of the housing relative to the piece of stock while the cutting head is forming threads; and a biasing device including a biasing arm having a first end portion thereof moveably coupled to the clamping device, the biasing device being configured to selectively engage the cutting head so as to bias the cutting head along the longitudinal axis; characterised in that the clamping device further comprises: an upper support bracket with a first clamping face configured to engage the piece of stock; and a lower support bracket movably coupled to the upper support bracket, with a second clamping face opposite the first clamping face and configured to engage the piece of stock; wherein the clamping device further comprises a latching device including an over center latch coupled between the lower support bracket and the upper support bracket; wherein the over center latch comprises: a latch handle; a first pivot pin rotatably coupling the latch handle to the upper support bracket; a link; a second pivot pin rotatably coupling a first end of the link to the latch handle; and a third pivot pin rotatably coupling a second end of the link to the lower support bracket. a power tool, including: a tool housing; and a cutting head configured to form threads in an elongated piece of stock, the cutting head being configured to receive the piece of stock, and to move axially along a longitudinal axis of the piece of stock to form the threads; and a tool housing; and a cutting head configured to form threads in an elongated piece of stock, the cutting head being configured to receive the piece of stock, and to move axially along a longitudinal axis of the piece of stock to form the threads; and a support device, including: a clamping device configured to secure a position of the piece of stock relative to the power tool for the cutting head to form the threads; a reaction arm device including a reaction arm coupled to the clamping device and configured to abut a retaining portion of the power tool to inhibit rotation of the housing relative to the piece of stock while the cutting head is forming threads; and a clamping device configured to secure a position of the piece of stock relative to the power tool for the cutting head to form the threads; a reaction arm device including a reaction arm coupled to the clamping device and configured to abut a retaining portion of the power tool to inhibit rotation of the housing relative to the piece of stock while the cutting head is forming threads; and a biasing device including a biasing arm having a first end portion thereof moveably coupled to the clamping device, the biasing device being configured to selectively engage the cutting head so as to bias the cutting head along the longitudinal axis; characterised in that the clamping device further comprises: an upper support bracket with a first clamping face configured to engage the piece of stock; and a lower support bracket movably coupled to the upper support bracket, with a second clamping face opposite the first clamping face and configured to engage the piece of stock; wherein the clamping device further comprises a latching device including an over center latch coupled between the lower support bracket and the upper support bracket; wherein the over center latch comprises: a latch handle; a first pivot pin rotatably coupling the latch handle to the upper support bracket; a link; a second pivot pin rotatably coupling a first end of the link to the latch handle; and a third pivot pin rotatably coupling a second end of the link to the lower support bracket. an upper support bracket with a first clamping face configured to engage the piece of stock; and a lower support bracket movably coupled to the upper support bracket, with a second clamping face opposite the first clamping face and configured to engage the piece of stock; wherein the clamping device further comprises a latching device including an over center latch coupled between the lower support bracket and the upper support bracket; wherein the over center latch comprises: a latch handle; a first pivot pin rotatably coupling the latch handle to the upper support bracket; a link; a second pivot pin rotatably coupling a first end of the link to the latch handle; and a third pivot pin rotatably coupling a second end of the link to the lower support bracket. a latch handle; a first pivot pin rotatably coupling the latch handle to the upper support bracket; a link; a second pivot pin rotatably coupling a first end of the link to the latch handle; and a third pivot pin rotatably coupling a second end of the link to the lower support bracket.