Counter Bore Tool

Producing large diameter of front spot facing or counter bore is time-consuming and cumbersome operation. Suitable tools for such operations are generally not available. Even the largest utility inserts available in standard range can cover spot facing only upto certain diameters. Using the single point tool or using interpolation method in CNC machines are time consuming and uneconomical.
Shenoy Engineering Pvt Ltd has come out with an effective solution for making large diameter of spot face / counter bore tools, using the generally available, indexable, standard carbide inserts. Multiple, staggered cutting edges, displaced circumferentially in a specially designed counter bore tool can produce any large diameter of spot facing or counter bore. Parellelity and step-free machined surface are ensured hby parallel cutting edges, which has become possible by a highly skill oriented pocket milling operation.
Apart from the advantages of heavy material removal from the inserted carbide, the in-built chip breakers in the inserts facilitate faster chip evacuation. We recommend use of forced coolant for chip evacuation from the deep counter bores, so as to retain the good finish on the counter bored surface. Chips can smoothly flow out through the well designed, generous gashes on the tool shank.
Multiple cutting edges of the counter bore / spot facing tool, together with guiding pilot, act as the balancing factors while performing heavy material removal, especially in deep count