Inch Size HSS Spiral Grooved Step Drills

Item No.:14HSO006

* The CBN ground and spiral flutes guarantee quiet running and high cutting performance. Especially the chip flow is optimized, so even long, non-breaking chips will be removed easily.

* The optimized chip flow protects the cutting edges and reduces built-up edges and cold weld marks. The cone makes it easier to withdraw the tool from the material.

* HSS Step Drills for drilling cylindrical holes in solid material up to a thickness of 1/8".

* Burr-free and vibration-free drilling.

* The tapered cutting edges of the next drill step can be used for simultaneous deburring or chamfering of the finished bore at the same time.

* Drilling perfectly round holes in steel, brass, copper, aluminum, wood and plastic.

* Drills up to 1/2" holes sizes with one bit.

* Ideal tool for sheet metal workers, electrical contractor, auto mechanics, and general contractors.

* Surface treatment available:White Finish, Black Oxide, Titanium Coated, Cobalt Coated, TiALN Coated

ZEC Industry Co., Ltd. is manufacturer specializing in produce kinds of cutting. Such as tct saw blade(for wood cutting, AL cutting, steel cutting, iron cutting etc. ), and CNC  saw blade grinding machine(Carbide saw blade Top & face angle grinder, dual side grinder band saw grinding machine), circular saw blade polishing machine, diamond saw blade, hole saw, carbide burrs/carbide rotary files, hss drill bits and so on.

We have wide business relations with customers from the USA, Japan, Germany, Holland, Middle East, South Africa and some other countries and regions. Our company policy is: "Work with perseverance and pursue the best, Honor the contract and keep our promise. "With the better technique the higher quality, we are and will be dong our best to meet the needs of customers all over the world.

We shall strictly follow the international Trade Regulations and sincerely welcome all friends at home and abroad to expand our business co-operations together. We would like to supply excellent products & services for you!