Nine9 Insert type drills

3xD : ø10 ~ ø30mm / 4xD : ø16 ~ ø30mm

5~10xD : ø19 ~ ø40mm 12xD is also possible

The unique design of insert pocket provides the best accuracy and rigidity of center insert.

• The center and peripheral inserts are positioned in order to divide the cutting chips into smaller spiral shape.

• Better surface finish. It can reduce your roughing operation.

• Lateral cutting forces can be absorbed by center insert due to a patented pocket design.

• Same insert for outer and inner insert.

• Better surface finish and better diameter accuracy.

• Possible to drill into angled surfaces without pre-drilling.