• BERGEON Bushing Chart: This chart is a must for anyone wanting to correctly size and choose the correctly sized Bergeon bush for the job. See our full range of bushes, cutters and bushing tools in our online store.

Download the BERGEON Bushing Chart

• KWM Bushing Chart: This chart is the KWM version of the bushing chart, allowing you to choose the correct KWM bush and KWM cutter for the job. Although at first it may look as though you need a rocket science degree to understand it, simply read all the info on the chart and you're off. We stock the full range of KWM bushes and cutters.

Download the KWM Bushing Chart

• Mainspring Length: How long is a piece of string? Don't know? Neither do we, but we can help you calculate the length of a mainspring. Download this simple chart for working out the length of a mainspring.

Download the Mainspring Length Chart or Mainspring Length Calculator