PEAK LIRS Head Conversion
PEAK offers replacement heads that allow you to convert your JS1 product to a JS2 product or your JS2 product to a JS1 product.
Just purchase the other head and swap them out.
This allows you to increase the range of hook sizes you can tie on without buying a complete new vise.
All the tools required to accomplish the change-out are included with the interchangeable head.
Note: JS series heads are not compatible with PEAK's PRV series products.
JS1-HD up to 0.195 wire
JS2-HD up to 0.134 wire