Name

Model

Diameter   (mm)

Length

(mm)

Thread

Body   material

Diamond   drill bit

with   1/2”Gas

HYD502

D5-D100

L75mm，L95mm

1/2”   Gas

Brass

Remark:

Applied   high class bond material and upgrade diamond to make drill sharp and durable   but low price

Being   popular by European and American Market