3-section type core bits for NIHONKAI PRO (reinforced concrete)

Use: For drilling holes in reinforced concrete

PRO Series High-quality core bits that combine outstanding drilling performance and durability.

Additional Information

- Drilling with a drilling machine below 3” at a low speed will affect the sharpness of the drill tip.

- For concrete with steel roots over 5”, low-speed drilling is ideal.

- The threads must be greased

Size :
Bit size
1″, 1-1/4″, 1-1/2″, 2″, 2-1/2″, 3″, 3-1/2″, 4″, 4-1/2″, 5″, 6″, 7″, 8″, 9″, 10″,12″, 14″
custom size

Tube
1″, 1-1/4″, 1-1/2″, 2″, 2-1/2″, 3″, 3-1/2″, 4″, 4-1/2″, 5″, 6″, 7″, 8″, 9″, 10″,12″, 14″
custom size

Coupler
1″, 1-1/4″, 1-1/2″, 2″, 2-1/2″, 3″, 3-1/2″, 4″, 4-1/2″, 5″, 6″, 7″, 8″, 9″, 10″,12″, 14″
custom size

Short tube for hammer Drill use)
1″, 1-1/4″, 1-1/2″, 2″, 2-1/2″, 3″, 3-1/2″
custom size

Coupler for hammer drill  
1″, 1-1/4″, 1-1/2″, 2″, 2-1/2″, 3″, 3-1/2″
custom size