1mm to 3.15mm dia.- DIN332 Form R, Form A+B and Form A indexable centre drill

  • IC 08 - 10mm(3/8

i-Center Inserts

DIN332 Form R - 1mm to 3.15mm dia. indexable centre drill_ insert NC5074
  • NC5074: 2 cutting edges, P40 grade Helica coating, for IC08 inserts.
        For carbon steel, alloy steel, high alloy steel, provides a smooth cutting and helps the cutting chip to be removed easily.
  • • Forms are available: DIN 332 form R, DIN 332 form A+B and DIN 332 form A.
  • Various inserts can fit on the same holder.

i-Center Holders:
Pilot diameter Ø1mm ~ Ø3.15mm of insert (0.039" ~ 0.124"). All are interchangeable on same holder.

• Cylindrical Shank:
+ Made of hardened high alloy steel, 58 HRC.
+ Shank is ground to h6 tolerance.

• Square Shank 25 x 25 Right / Left Hand:
+ For used on lathe.
+ Made of hardened high alloy steel, 40 HRC.
+ Other sizes are available on request.

• Cylindrical Shank with Pre-balanced:
+ Made of hardened high alloy steel, 58 HRC.
+ G6.3 / 10,000 r.p.m.

center drill_weldon shank_square shank
i-Center Inserts
Nine9 center drill insert_form R
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STEP Part No L1 L2 Ød1 d2 R CT±0.025 IC
I9MT08T1R0100 2.16
(0.085")
4.14
(0.163")
1.00
(0.039")
2.12
(0.083”)
2.8
(0.110")
7.55
(0.297")
08
(0.315")
I9MT08T1R0125 2.74
(0.108")
4.64
(0.183")
1.25
(0.049")
2.65
(0.104")
3.5
(0.138")
7.90
(0.311")
08
(0.315")
I9MT08T1R0160 3.45
(0.136")
5.13
(0.202")
1.60
(0.063")
3.35
(0.132”)
4.5
(0.177")
8.4
(0.331”)
08
(0.315")
I9MT08T1R0200 4.45
(0.175")
6.08
(0.240")
2.00
(0.079")
4.25
(0.167”)
5.65
(0.222")
9.10
(0.358”)
08
(0.315")
i-Center Inserts
Nine9 center drill insert_form A+B
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Part No L1 L2 Ød1 d2 d3 L3 CT±0.025 IC
I9MT08T1B0100 1.3
(0.051")
2.21
(0.087")
1.00
(0.039")
2.12
(0.083”)
3.15
(0.124")
2.51
(0.099")
7.55
(0.297")
08
(0.315")
I9MT08T1B0125 1.6
(0.063")
2.75
(0.108")
1.25
(0.049")
2.65
(0.104")
4.0
(0.157")
3.14
(0.124")
7.9
(0.311")
08
(0.315")
I9MT08T1B0160 2.0
(0.079")
3.46
(0.136")
1.60
(0.063")
3.35
(0.132”)
5.0
(0.197")
3.93
(0.155")
8.4
(0.331”)
08
(0.315")
I9MT08T1B0200 2.5
(0.098")
4.39
(0.173")
2.00
(0.079")
4.25
(0.167”)
6.3
(0.248")
4.98
(0.196")
9.1
(0.358”)
08
(0.315")
i-Center Inserts
Nine9 center drill insert_form A
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Part No L1 L2 Ød1 d2 d3 L3 CT±0.025 IC
I9MT08T1A0200 2.15
(0.085”)
4.10
(0.161”)
2.0
(0.079")
4.25
(0.167”)
8
(0.315")
7.35
(0.289”)
10.5
(0.413")
08
(0.315")
I9MT08T1A0250 2.58
(0.102")
5.00
(0.197")
2.5
(0.098")
5.3
(0.209”)
8
(0.315")
7.34
(0.289")
10.5
(0.413")
08
(0.315")
I9MT08T1A0315 3.23
(0.127")
6.30
(0.248")
3.15
(0.124")
6.7
(0.264”)
8
(0.315")
7.43
(0.293")
10.5
(0.413")
08
(0.315")
Cylindrical shank

● Made of hardened high alloy steel, 58 HRC.

Nine9 center drill holder_ic08
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Part No Insert Size Ød ØD L1 L2 IC
99616-IC08-10F I9MT08 10
(0.394”)
12
(0.472")
30
(1.181")
18.5
(0.728")
08
(0.315")
99616-IC08-3/8F I9MT08 3/8" 12
(0.472")
30
(1.181")
18.5
(0.728")
08
(0.315")
Square Shank 25 x 25 Right / Left Hand
• For used on lathe.
• Made of hardened alloy steel, 40 HRC.
• Other sizes are available on request.
Right Hand 25 x 25 Square Shank_for nine9 i-center
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Part No Insert Size L1 L2 IC
99616-IC08-R2525MF I9MT08 8
(0.315")
3.25
(0.128")
08
(0.315")
99616-IC08-L2525MF I9MT08 8
(0.315")
3.25
(0.128")
08
(0.315")
Cylindrical Shank with Pre-balanced
• Made of hardened high alloy steel, 58 HRC.
• G6.3 / 10,000 r.p.m.

Nine9 indexable center drill_Cylindrical Shank with Pre-balanced
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Part No Insert Size ØD L1 L2 IC
99616-IC08-10B I9MT08 12
(0.472")
30
(1.181")
33.5
(1.319")
08
(0.315")
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