21/64" HSS Drill Bit Long Series Carded 2500-21/64S by Bordo Metal Diamond Cutting|Abrasive Wheels and Cups GUIDE RAILS | HIWIN Guide

GUIDE RAILS | HIWIN Guide Rails with sliding technology to easily drive the machine and ensure good bearing capacity

comfortable handle with rubber

Increased Molybdenum Manganese and Nickel content provide greater strength and corrosion resistance

Flex Handle 375mm (15")

Perfect cuts reduce the need for reworking - With the clip-on splinter guard in combination with the guide rail

21/64" HSS Drill Bit Long Series Carded 2500-21/64S by Bordo Metal Diamond Cutting|Abrasive Wheels and Cups GUIDE RAILS | HIWIN GuideBLACK FINISH (also called blue finish) A black finish is achieved by steam tempering, a thermal process resulting in a porous tool coating. This surface helps to keep lubricant on the tool, particularly important on the cutting edges, thus reducing friction and cold welding. The result is increased tool life. Black finish tools are generally recommended for ferrous applications where the oxide layer aids chip flow and heat dissipation. Specifications: