Diamond Core Drill Bit Series for Stones and Concrete

Product Description

Features:
1. Thinner diamond segment and thinner tube wall can easily reduce the resistance and increase the drilling speed (compare with the assembly type)Roof segment Drill Bits.
2. Very fast drilling speed and low drilling pressure.
3. Different connection end for different drilling machine.
4. Especially effective in drilling through reinforced concrete.
Specification:

Diameter	Segment Dimension	Teeth No.	Drilling Depth	Connection
Φ20	19X3.0X9.0	2	7mm	5/8''-11 M14 M16
Φ25	14X3.0X9.0	3
Φ32	16X3.0X9.0	4
Φ35	16X3.0X9.0	4
Φ38	16X3.0X9.0	4
Φ42	20X3.2X9.0	4
Φ52	20X3.2X9.0	4
Φ65	24X3.5X9.0	5
Φ78	24X3.5X9.0	5
Φ82	24X3.5X9.0	5
Φ92	24X3.5X9.0	5
Φ102	24X3.5X9.0	6

Packing & Shipping:
Packing:
The inner packaging is carton box .The outer packaging is carton box Or woodencase.
(If by air ,carton box will reduce the weight, if by sea, we suggest woodenbox for waterproof.)
Shipping:
1. Trail order with light weight(<45kgs), we recommend Express Service.
2. Normal order weighting over 45kgs, we recommend Air Cargo.
3.As for the large size or heavy weight, JDK recommends Sea Cargo.
Fair & Exhibition:
Our Company: