4mm HSS Drill Bit Long Series Carded 2501-4.00S by Bordo File Handed : Both

Handed : Both

Makita-built brushless motor delivers up to 6

Head Length 1

Ball and needle bearings for long tool life

Voltage: 18V x 2

4mm HSS Drill Bit Long Series Carded 2501-4.00S by Bordo File Handed : BothBLACK 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: