Feature:
* Cutting edge diameter: 20 mm / 0.79 inches.
* Shaft diameter: 1/2 inch.
* Cutting edge length: 80 mm / 3.15 inches.
* Total length: 150 mm / 5.9 inches.
* Material: High Speed Steel (HSS) 6542
* Surface: nitride coated.
* Hardness: HRC65-66.
* Shaft type: straight, round.
* Tool nut type: spiral.
* Cutting Direction: Right Handed
What is included:
* 1 x drill bit with reduced shaft.
Applications and features:
--- Widely used for drilling stainless steel, aluminium alloys, cast iron, carbon steel, copper, hardwood, hard plastic and other metal materials in maintenance departments, machinery shops and other industries. For use on drills and bench drills. The appropriate lubricant is helpful when cutting or cooling, increasing the dimensional accuracy and life of the equipment.
--- The twist drill bit is made of 6542 high-speed steel with high hardness, good toughness and high strength. The black nitride coating has excellent wear resistance, corrosion resistance and high temperature resistance. Provides better lubricant application, smoother drilling and is more durable and corrosion resistant than traditional silver surfaces.
Notes:
--- Drill edges with burrs: reduce the number of holes drilled and check different cutting conditions. Pay attention to proper handling of the tool. Reduce forward and reverse speed. Use harder aluminum and wood. Drill metal with high hardness. The speed should be slower than normal drilling.