Page 125 - Demo

123GENERAL PURPOSE DRILLINGCOMBI-CHAMISCAR%u2019s COMBI-CHAM line is intended for semi-finish operations in machining deep holes with large diameters. The COMBI-CHAM line is designed for machining holes with a metric diameter range of 26 to 50 mm in 1 mm increments and the 5, 7, 8 drill length to diameter ratios or with an imperial diameter range of 1.125 to 2 inches in 0.125 inch increments and the 3, 5 drill length to diameter ratios. Market demand has led to the expansion of the COMBI-CHAMline and drills have been developed to provide an ultimate solution for drilling the most popular hole diameters in the wind turbine industry. These drills feature an exchangeable pilot drilling head and indexable precision inserts in various sizes. The design of the drill creates two long cutting edges, i.e., the drill is truly fully effective, it enables high feed drilling, providing high drilling rates, and high accuracy and surface finish.exchangeable pilot drilling headindexable peripheral inserttrue fully effective geometry