* Spear point reduces cutting pressure for cleaner holes.

* Cuts a perfectly round hole without chipping or breaking.

* Best result with lower rpm and good cooling with water, vinegar and turpentine.

* For use with rotary drills only.

* For drilling glass, tile, mirrors and ceramics.

* Grooved hex shank prevents slipping in drill chuck or bit extension.

* Fits all standard 1/4" quick change chucks.

* Drill Set are available.

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!