Welcome to KOR CHEN CORP.,

In 1968, our company started to produce "Double-Head Drilling Machine" for use in coral、pearl manufacturing and can use any material which hardness of less than 3, afterwards, in 1975, Jewelry Machinery Factory has been established accordingly.


Amber is fossilized tree resin, which has been appreciated for its color and natural beauty since Neolithic times. Much valued from antiquity to the present as a gemstone, amber is made into a variety of decorative objects. Amber is used in jewelry. It has also been used as a healing agent in folk medicine.


Since the machine will not easily oscillate when encountering vibration and impulse, hence only need one adjustment, then it will be able to throughout central holes of drilling machine in order and automatically.

Auto Ultra Precise Double-head Drilling Machine (KC-009A)

This equipment is improved from full Auto Ultra Precise Double-Head Drilling Machine KC-009A, which has been produces for 5,000 sets. The machine is compact, solid with high precision it makes the machine more efficient, precise and stable because the inner improvement on various components.


Tourmalineis a crystalline boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Tourmaline is classified as a semi-precious stone and the gemstone comes in a wide variety of colors.