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  • 2mm to 3.15mm and 5/64" to 1/8" dia.- DIN332 Form R, FormA+B and ANSI 60 degree indexable centre drill

2mm to 3.15mm and 5/64" to 1/8" dia.- DIN332 Form R, FormA+B and ANSI 60 degree indexable centre drill

  • IC 12, 16mm(5/8
i-Center Inserts
  • • NC2033: 2 cutting edges, K20F grade, TiAlN coating.
       For carbon steel, alloy steel, high alloy steel and cast iron.
  • ● IC 12: Pilot diameter Ø2, Ø2.5 and Ø3.15mm of center carbide insert, all are interchangeable on same holder.
  • • Forms are available: DIN 332 form R, DIN 332 form A+B and ANSI 60°.
i-Center Holders
● Three type of holders for your option - weldon shank, cylindrical shank with pre-balanced and square shank 25 x 25 right / left hand.
• 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.
Nine9_center_drill_weldon_shank_square_shank_pre-balanced

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i-Center Inserts
  • Various inserts can fit on the same holder.
R type center drill carbide insert
Drag left or right for more information.
IC Part No L1 L2 Ød1 d2 R CT±0.025
12 I9MT12T2R0200 4.45 6.64 2.00 4.25 5.65 11.73
12 I9MT12T2R0250 5.59 8.11 2.50 5.3 7.15 13.00
12 I9MT12T2R0315 7.21 9.63 3.15 6.7 9 14.00
i-Center Inserts
  • ● Various inserts can fit on the same holder.
A+B type center drill carbide insert
Drag left or right for more information.
IC Part No L1 L2 Ød1 d2 d3 L3 CT±0.025
12 I9MT12T2B0200 2.5 4.39 2.00 4.25 6.3 4.98 11.73
12 I9MT12T2B0250 3.1 5.53 2.50 5.3 8.0 6.28 13.0
12 I9MT12T2B0315 3.9 6.90 3.15 6.7 10.0 7.85 14.0
i-Center Inserts
  • ● Various inserts can fit on the same holder.
ANSI 60 Degree type center drill carbide insert
Drag left or right for more information.
IC Part No L1 L2 Ød1 d2 CT±0.025 Size
12 I9MT12T2A2 5/64" 4.4mm 5/64" 3/16" 12.6 #2
12 I9MT12T2A3 7/64" 5.9mm 7/64" 1/4" 13.8 #3
12 I9MT12T2A4 1/8" 7.3mm 1/8" 5/16" 14.25 #4
Weldon Shank

● Made of hardened high alloy steel, 58 HRC.

Nine9 R type center drill
Drag left or right for more information.
IC Part No L1 L2 Insert Size Ød ØD
12 99616-IC12-16F 48 30.5 I9MT12 16 21
12 99616-IC12-5/8F 48 30.5 I9MT12 5/8" 21
Cylindrical Shank with Pre-balanced
Nine9 center drill with pre-balanced
Drag left or right for more information.
IC Part No L1 L2 Insert Size Ød ØD
12 99616-IC12-12B 48 51 I9MT12 12 21
Square Shank 25 x 25 Right / Left Hand
square shank 25 x 25 right / left hand
Drag left or right for more information.
IC Part No L1 L2 Insert Size
12 99616-IC12-R2525MF 11 4.9 I9MT12
12 99616-IC12-L2525MF 11 4.9 I9MT12
Catalog Cutting Data Application Examples
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