Blue Brand Diamond Layered Tubular Glass Drill Bit

Blue Belgian also known as Blue Brand diamond layered tubular glass drill bits feature a solid steel body measuring 2-61/64" (75mm) in overall length with a 5/16" (7.9375mm) straight shank shaft and painted blue finish. These diamond embedded drill bits can be refinished if affected by excessive heat during the drilling process with the use of a dressing pad (sold separately). Glass and mirror drilling should be performed with water cooling to avoid excessive heat build up. 

Blue Brand glass and mirror straight shank diamond layered drill bits come in a variety of sizes.  If you need a custom size or additional help with your selection, please contact us.