This catalogue describes our complete range of standard rules together with their reference numbers. E-mail our sales department hfw@caslon.co.uk to get your printed version. .

The original body sizes of our tool rules are derived from printers' measurements from the days when brass rule was used in conjunction  with lead type to print lines, columns and fancy borders. Known as the Anglo/American point system, the sizes do not positively relate to either imperial or metric but have become a working standard within the plastics industry using the original reference sizes known as "Points" or "pt." for short. In some areas of the world a metric equivilent is used and thus we now offer these sizes also. Some of the sizes are so close we have discontinued the old “Point” size and only offer the metric equivilent.

All our tool rules are manufactured to standard lengths of 660 mm (26"). Where the same pattern or design is available on  more than one body size, the code number is followed by the point size of the rule required. (i.e.) 2pt. Stitch Weld Rule is shown as STW 23/2, whereas the same pattern produced on a 6pt. body is STW 23/6. If a metric body is required this has to be specified in the same way.

The conversion table below will help to explain the differences and act as a quick reference chart showing the body sizes.

Anglo / American Point Sizes

2pt.

3pt.

4pt.

6pt.

8pt.

12pt.

18pt.

0.702mm

1. 054mm

1.402mm

2.108mm

2.794mm

4.216mm

6.325mm

0.0275"

0.0415"

0.055"

0.083"

0.110"

0.166"

0.249"

 

 

Metric Sizes

0.7mm

1.0mm

1.5mm

2.25mm

3.0mm

4.5mm

6.0mm

0.0276"

0.0394"

0.059"

0.088"

0.118"

0.177"

0.236"

 


We also manufacture a number of special lines which are made to  customer's specific requirements and will always be pleased to quote  against drawings, patterns or detailed information. Whilst we have a standard cutting height of 23.31mm (.918") we can produce up to 24.13mm (.950") if required. On most of our rules, the welding height or differential is always be made to your exact requirements from 24.13mm (.950")  down to 20.32mm (.800"). Click here for our easy reference chart.

To enable us to continue to give you the finest possible service available please provide us with all the information we require when placing orders...

  • Quantity
  • Body size
  • Description of rule
  • Style reference number
  • Angle (only for Angle Weld Rules)
  • Height and/or Differential between cutting and welding height *

* The differential required is normally half the total thickness of PVC to be welded. Click here for our easy reference chart.