Pressure blasting thin copings

To prevent perforating thin metal copings try, (1) holding tip of nozzle further away from

 coping,  (2) hold nozzle at an angle to coping, other than 90 degrees, (3) keep nozzle

 moving , (4) holding the nozzle handle further back will allow you to more easily sweep

the abrasive across the surface of the coping.

Sectioning of dies

Be aware of which way the teeth of the saw blade are pointing, if they point back to the

 handle that means that the saw will cut on the pulling stroke, if the teeth are pointing away

 from the handle the saw will cut on the pushing stroke, determine what works best and be


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