4pcs 1.6mm C3/K10 Tungsten Carbide Precision Straight Shank Twist Drill Bit Mounted Ball Bearings with Two-Bolt Flange just clean them with dry

just clean them with dry of cloth

Size 3: 9x7

Rated Current: 2 Amp

304 Stainless steel hex socket drive screw used extensively where to fasten is needed

Used for filling up a preparatory hole or the excess in

4pcs 1.6mm C3/K10 Tungsten Carbide Precision Straight Shank Twist Drill Bit Mounted Ball Bearings with Two-Bolt Flange just clean them with dryThe solid carbide drill bit is made of a micro grain tungsten cobalt alloy with an average cobalt content of 6%. It has high hardness (HRC92), wear resistance, heat resistance, high bending strength, and resistance to stick. Provides faster cutting speeds than other substrates and is harder but more brittle. Large and spiral chip space design for fast and clean chip removal. Sharp cutting edge provides smooth cutting and no glitches. With good milling