KL-TECH s.r.o | www.klte.cz
PR
N9MT11T3PR Radius Form Center Drilling
Ancient
Now & Future
60
NC40
Inserts >>
d2
• Create 60° center holes SIMILAR to DIN 332 Form R.
• Easy tool length setting, saving tool changing time.
• Each insert has 2 cutting edges.
NC40:
d1
Parts No.
Coating
014205 N9MT11T3PR20-NC40
014206 N9MT11T3PR25-NC40
014207 N9MT11T3PR30-NC40
Dimensions
Grade
TiN
P32
d1 d2 L1 L2
2.0 5.4 2.7 3.3
2.5 5.9 3.0 3.7
3.0 6.4 3.3 4.0
Code
L2
L1
• Universal grade for all unhardened steel and cast iron.
• Radius curve eliminates the sharp transition from drill point
to countersink angle.
Holder >>
• PR holder has small offset value.
• Also apply as a 90° spotting drill while fitted with N9MT11T3CT2T-H insert (page 20).
Ø16
L
Code Parts No. Ød L
604004PR 00-99616-14-PR 16 100
Screw
Key
NS-35080
2.5 Nm
NK-T15
Turning and Centering Capacity on CNC Lathes
22
4.1 max
Action
1
1 Center Drilling
2 Facing
3 Chamfering
4 External Turning
2
4
PR Insert >> Radius Center Drilling
Center Drilling
60
Work Material
Vc (m/min) f (mm/rev.)
Carbon Steel 80-150 0.05-0.20
Alloy steel 80-150 0.05-0.20
High alloy steel 80-150 0.05-0.20
Cast iron 80-150 0.05-0.20
3
Grade of Insert
NC40
Nine9 Cutting Tool & Tool Holders 41