With the twin-bladed reamers higher cutting speeds and feed rates can be applied compared to single-bladed guide pad reamers.
The cutting blades are radially and axially differently set. Dividing the cutting depth in a premachining and finishing cut with only a few hundrets of a millimeter stock removal the surface finishing and structure is unique and lonng tool life is the result even in difficult materials.
Based on this principle MAPAL also offers multi-bladed tools as for example tools with 4 + 2 blades. These tools have 4 premachining and 2 finishing blades and run with even higher feed rates.