585-8341 Features: -Ideal for auto repair and machinery where metric threads are specified. -The first number represents the diameter of the tap in millimeters, the second number is the distance between the threads in millimeters. -Straight flutes are ground to provide rapid chip removal for efficient threading. -Tap size and recommended drill bit size are etched on each tool for easy identification. Number Of Bits: -1. Dimensions: Overall Product Weight: -0.2 Pounds.