Chiselling Accessory Diamond Drill Drilling cross dry core cutters core edge sinkers

The Drilling Cross creates pilot holes to allow for easy drilling starts. It is appropriate for use in building materials such as limestone, brick and masonry. The Drilling Cross is designed for use with 1 1/4-inch UNC Dry Core Cutters. . Drilling Cross creates pilot holes to allow for easy drilling starts|Appropriate for building materials such as limestone, brick and masonry|For use with 1 1/4-inch UNC Dry Core Cutters|With 1 1/4-inch UNC thread for diamond drills . Bosch 42 mm drilling cross for dry core cutters. .Bosch drilling cross for dry core cutters diameter 42 mm.