Material: HSS 4241.
Surface treatment: Titanium Coated.
HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter, which is made from high quality HSS steel, and with the Titanium coated to reduce friction and heat.
Deburring, chamfering, elliptic hole enlargement, twist drill, the function of them was unable, but it is possible.
The use of tools: drill, bench drill.
Work while water cooling can effectively extend the service life of drill bit recommend drilling rate of 250-250 RPM
Products can be used in automotive machining, aerospace, metal processing, installation and maintenance of electrical and other industries, and products to meet the high-altitude operations easy to carry with hand drills and other tools.
It is very suitable for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc
Material: HSS (Suitable for use in the hardness below 25 degrees workpiece, such as carbon steel, the thickness of the plate in the 5MM)
4-23mm(4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm)
Shank:1/4″(6.35mm) Quick Change Hex Shank
Package : 1pc Step Drill Bit