Amana tool HBM-102 3-Pc Hinge Boring 57 Long x 10mm SHK Carbide Tipped Bit Set Includes Two #301008 (8mm D) and One #203351 (35mm D).

57mm Long • Carbide Tipped Complete hinge installation set for boring machines. Industrial Quality HBM-102 set contains: One 35mm Dia Right Hand Carbide Tipped Hinge Boring Bit  Two 8mm Dia x 27mm Cut Height Left Hand Carbide Tipped Brad Point Boring BitsIndustrial Brad Point Boring Bits are Coated with a Non-Stick Coating for Longer Lasting Cutting Edge and Tool Life.  Amana Tool dowel drills are coated with a special Polytetrafluoroethylene (PTFE), a non-stick color coating. In cases where the carbide tip cutting edges are coated, there is no need to sand the coating off before use. Once the tool starts drilling, the coating is cleared off the needed cutting edge right away.  Amana's coating is applied onto the bit at a temperature of 570° F. The coating reduces the friction between the chip and the body inside the flute and it helps to clear the chips out of the hole during the drilling creating a cooler drilling area, no burning and longer lasting cutting edge.