Applicable to stainless steel and mild steel bevelling. Super-solid insert with 4-side blades per piece practices good economy. Simple to adjust bevelling depth and replace insert. Pipe outer edge can be also processed wi......Applicable to stainless steel and mild steel bevelling. Super-solid insert with 4-side blades per piece practices good economy. Simple to adjust bevelling depth and replace insert. Pipe outer edge can be also processed with standard accessories. Bevelling angle can be adjusted to any desired position 15 - 45.