3-fluted ratio drills, from Guhring are suitable for drilling from the solid, achieving holes with excellent positional and form accuracy. They are capable of dimensional accuracy and surface finish to the quality achieved by core drills. In fact, when using 3-fluted ratio drills, spotting or centring is not usually necessary.
The open flute form of 3-fluted ratio drills in conjunction with the short compact design, as well as our ultra fine carbide grade achieve maximum process reliability and enable applications under the most difficult of conditions, as for example oblique entry or interrupted drilling.
3-fluted ratio drills are suitable for drilling cast iron and long-chipping Al-alloys. They enable very high feed rates and optimal centring for the machining of cast iron and aluminium.