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Products
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Metalworking Tools
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Turning
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Top Notch™ Grooving
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Boring Bars

Boring Bars

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Workpiece Material

P P Steel (73)
- P0 P0
  Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS
  (73)
- P1 P1
  Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS
  (73)
- P2 P2
  Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS
  (73)
- P3 P3
  Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS
  (73)
- P4 P4
  Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS
  (73)
- P5 P5
  Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS
  (73)
- P6 P6
  High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS
  (73)
M M Stainless Steel (73)
- M1 M1
  Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS
  (73)
- M2 M2
  High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS
  (73)
- M3 M3
  Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS
  (73)
K K Cast Iron (73)
- K1 K1
  Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS
  (73)
- K2 K2
  Low and Medium Strength CGI and Ductile Irons 130-260 HB; <28 HRC; <600 N/mm^2 UTS
  (73)
- K3 K3
  High Strength Ductile and Austempered Ductile Iron 180-350 HB; <43 HRC; >600 N/mm^2 UTS
  (73)
N N Non-Ferrous Materials (73)
- N1 N1
  Wrought Aluminum
  (73)
- N2 N2
  Low-Silicon Aluminum Alloys and Magnesium Alloys Si <12.2%
  (73)
- N3 N3
  High-Silicon Aluminum Alloys Si >12.2%
  (73)
- N4 N4
  Copper, Brass, Zinc-based on machinability index range of 70-100
  (73)
- N5 N5
  Nylon, Plastics, Rubbers, Phenolics, Resins, Fiberglass
  (73)
- N6 N6
  Carbon, Graphite Composites, CFRP
  (73)
- N7 N7
  MMC's
  (73)
S S High-Temp Alloys (73)
- S1 S1
  Iron-Based, Heat-Resistant Alloys 160-260 HB; 25-48 HRC; 500-1200 N/mm^2 UTS
  (73)
- S2 S2
  Cobalt-Based, Heat-Resistant Alloys 250-450 HB; 25-48 HRC; 1000-1450 N/mm^2 UTS
  (73)
- S3 S3
  Nickel-Based, Heat Resistant Alloys 160-450 HB; <48 HRC; 600-1700 N/mm^2 UTS
  (73)
- S4 S4
  Titanium and Titanium Alloys 300-400 HB; 33-43 HRC; 900-1600 N/mm^2 UTS
  (73)
H H Hardened Materials (73)
- H1 H1
  Hardened Materials 44-48 HRC
  (73)
- H2 H2
  Hardened Materials 48-55 HRC
  (66)
- H3 H3
  Hardened Materials 56-60 HRC
  (41)
- H4 H4
  Hardened Materials >60 HRC
  (41)

Applications

Face Grooving Face Grooving (68)
Grooving Grooving (3)
ID Facing ID Facing (9)
ID Grooving ID Grooving (63)
ID Thread Turning ID Thread Turning (72)
Threading Threading (1)

Type of Thread

60 60 (71)
ACME ACME (43)
API API (41)
API RD API RD (33)
BSW BSW (31)
BUTTRESS BUTTRESS (66)
M M (44)
NPT NPT (31)
STUB ACME STUB ACME (31)
UN UN (66)
UNJ UNJ (31)

Cutting Condition

Heavily Interrupted Cut Heavily Interrupted Cut (73)
Lightly Interrupted Cut Lightly Interrupted Cut (73)
Smooth Cut Smooth Cut (73)
Varying Depth of Cut Varying Depth of Cut (73)

Connection Style

Boring Bar Shank Boring Bar Shank (72)

range select

Cutting Edges Per Insert

1.0 1.0 (71)
2.0 2.0 (68)

Cutting Edges Per Insert Min cuttingEdgesPerInsert to Cutting Edges Per Insert Max Cutting Edges Per Insert Max

Internal Coolant Capability

Y (72)

Corner configuration

range select

Corner Radius

0.002 0.002 in (31)
0.003 0.003 in (71)
0.004 0.004 in (56)
0.005 0.005 in (31)
0.006 0.006 in (41)
0.007 0.007 in (54)
0.008 0.008 in (71)
0.01 0.01 in (54)
0.011 0.011 in (31)
0.012 0.012 in (31)
0.014 0.014 in (41)
0.016 0.016 in (33)
0.017 0.017 in (31)
0.019 0.019 in (41)
0.02 0.02 in (56)
0.023 0.023 in (41)
0.03 0.03 in (25)
0.031 0.031 in (56)
0.033 0.033 in (2)
0.035 0.035 in (41)
0.039 0.039 in (56)
0.047 0.047 in (56)
0.049 0.049 in (56)
0.06 0.06 in (56)
0.062 0.062 in (31)
0.063 0.063 in (66)
0.069 0.069 in (56)
0.078 0.078 in (31)
0.079 0.079 in (41)
0.089 0.089 in (41)
0.095 0.095 in (41)
0.098 0.098 in (10)
0.125 0.125 in (10)

Corner Radius Min cornerRadius_I to Corner Radius Max Corner Radius Max

range select

Corner Radius

0.05 0.05 mm (31)
0.076 0.076 mm (71)
0.1 0.1 mm (56)
0.125 0.125 mm (31)
0.151 0.151 mm (41)
0.176 0.176 mm (54)
0.2 0.2 mm (71)
0.225 0.225 mm (31)
0.25 0.25 mm (54)
0.275 0.275 mm (31)
0.301 0.301 mm (31)
0.325 0.325 mm (41)
0.351 0.351 mm (41)
0.4 0.4 mm (33)
0.426 0.426 mm (31)
0.45 0.45 mm (41)
0.476 0.476 mm (16)
0.5 0.5 mm (56)
0.576 0.576 mm (41)
0.75 0.75 mm (25)
0.775 0.775 mm (56)
0.826 0.826 mm (2)
0.9 0.9 mm (41)
1.0 1.0 mm (56)
1.201 1.201 mm (56)
1.25 1.25 mm (56)
1.5 1.5 mm (56)
1.576 1.576 mm (31)
1.6 1.6 mm (66)
1.75 1.75 mm (56)
1.975 1.975 mm (31)
2.0 2.0 mm (41)
2.25 2.25 mm (41)
2.401 2.401 mm (41)
2.5 2.5 mm (10)
3.176 3.176 mm (10)

Corner Radius Min cornerRadius_M to Corner Radius Max Corner Radius Max

Application

Minimum Depth of Cut

Minimum Feed

Grade Of Cutting Tool

K1 K1 (5)
K2885 K2885 (56)
K313 K313 (66)
K420 K420 (73)
K4H K4H (43)
K68 K68 (73)
KB1345 KB1345 (41)
KB1630 KB1630 (41)
KB5625 KB5625 (31)
KBH20 KBH20 (16)
KC250 KC250 (61)
KC5010 KC5010 (73)
KC5025 KC5025 (73)
KC5410 KC5410 (66)
KC710 KC710 (66)
KC720 KC720 (71)
KC722 KC722 (66)
KC730 KC730 (73)
KC732 KC732 (31)
KC810 KC810 (73)
KC850 KC850 (68)
KC910 KC910 (43)
KC9110 KC9110 (66)
KC9120 KC9120 (31)
KC9320 KC9320 (66)
KC935 KC935 (66)
KC950 KC950 (66)
KCK20 KCK20 (53)
KCK20B KCK20B (66)
KCP10B KCP10B (66)
KCP25B KCP25B (66)
KCU10 KCU10 (73)
KCU25 KCU25 (73)
KD050 KD050 (16)
KD081 KD081 (31)
KD100 KD100 (36)
KD120 KD120 (41)
KD1425 KD1425 (31)
KT175 KT175 (56)
KT315 KT315 (66)
KU10T KU10T (66)
KU25T KU25T (66)
KU30T KU30T (66)
KY3000 KY3000 (41)

Hand Of Tool

L L (34)
R R (39)

range select

F Dimension

6.551 6.551 mm (2)
7.0 7.0 mm (2)
10.3 10.3 mm (1)
10.775 10.775 mm (2)
10.976 10.976 mm (2)
11.0 11.0 mm (4)
11.101 11.101 mm (2)
12.576 12.576 mm (2)
12.701 12.701 mm (2)
13.0 13.0 mm (3)
14.15 14.15 mm (2)
14.275 14.275 mm (2)
16.25 16.25 mm (2)
17.0 17.0 mm (4)
17.35 17.35 mm (2)
17.475 17.475 mm (4)
19.425 19.425 mm (2)
22.0 22.0 mm (2)
22.225 22.225 mm (2)
22.6 22.6 mm (2)
25.401 25.401 mm (2)
25.776 25.776 mm (1)
27.0 27.0 mm (4)
28.576 28.576 mm (2)
31.75 31.75 mm (4)
32.525 32.525 mm (2)
34.926 34.926 mm (4)
35.0 35.0 mm (2)
38.1 38.1 mm (2)
38.875 38.875 mm (2)
41.276 41.276 mm (2)

F Dimension Min fDimension_M to F Dimension Max F Dimension Max

range select

F Dimension

0.258 0.258 in (2)
0.276 0.276 in (2)
0.406 0.406 in (1)
0.424 0.424 in (2)
0.432 0.432 in (2)
0.433 0.433 in (4)
0.437 0.437 in (2)
0.495 0.495 in (2)
0.5 0.5 in (2)
0.512 0.512 in (3)
0.557 0.557 in (2)
0.562 0.562 in (2)
0.64 0.64 in (2)
0.669 0.669 in (4)
0.683 0.683 in (2)
0.689 0.689 in (4)
0.765 0.765 in (2)
0.866 0.866 in (2)
0.875 0.875 in (2)
0.89 0.89 in (2)
1.0 1.0 in (2)
1.016 1.016 in (1)
1.063 1.063 in (4)
1.125 1.125 in (2)
1.25 1.25 in (4)
1.281 1.281 in (2)
1.375 1.375 in (4)
1.379 1.379 in (2)
1.5 1.5 in (2)
1.532 1.532 in (2)
1.625 1.625 in (2)

F Dimension Min fDimension_I to F Dimension Max F Dimension Max

range select

Minimum Axial Groove Diameter

11.175 11.175 mm (2)
11.5 11.5 mm (2)
18.5 18.5 mm (2)
18.55 18.55 mm (4)
20.326 20.326 mm (1)
22.0 22.0 mm (4)
25.401 25.401 mm (4)
26.0 26.0 mm (3)
28.576 28.576 mm (4)
34.0 34.0 mm (4)
34.926 34.926 mm (6)
44.0 44.0 mm (2)
44.45 44.45 mm (2)
50.801 50.801 mm (2)
54.0 54.0 mm (4)
57.151 57.151 mm (9)
60.325 60.325 mm (2)
63.5 63.5 mm (4)
69.851 69.851 mm (4)
70.0 70.0 mm (2)
73.025 73.025 mm (2)
76.2 76.2 mm (2)
82.551 82.551 mm (2)

Minimum Axial Groove Diameter Min axialGrooveDiaMin_M to Minimum Axial Groove Diameter Max Minimum Axial Groove Diameter Max

range select

Minimum Axial Groove Diameter

0.44 0.44 in (2)
0.453 0.453 in (2)
0.728 0.728 in (2)
0.73 0.73 in (4)
0.8 0.8 in (1)
0.866 0.866 in (4)
1.0 1.0 in (4)
1.024 1.024 in (3)
1.125 1.125 in (4)
1.339 1.339 in (4)
1.375 1.375 in (6)
1.732 1.732 in (2)
1.75 1.75 in (2)
2.0 2.0 in (2)
2.126 2.126 in (4)
2.25 2.25 in (9)
2.375 2.375 in (2)
2.5 2.5 in (4)
2.75 2.75 in (4)
2.757 2.757 in (2)
2.875 2.875 in (2)
3.0 3.0 in (2)
3.25 3.25 in (2)

Minimum Axial Groove Diameter Min axialGrooveDiaMin_I to Minimum Axial Groove Diameter Max Minimum Axial Groove Diameter Max

range select

Maximum Axial Groove Diameter

393.661 393.661 in (72)

Maximum Axial Groove Diameter Min axialGrooveDiaMax_I to Maximum Axial Groove Diameter Max Maximum Axial Groove Diameter Max

range select

Maximum Axial Groove Diameter

9999.0 9999.0 mm (72)

Maximum Axial Groove Diameter Min axialGrooveDiaMax_M to Maximum Axial Groove Diameter Max Maximum Axial Groove Diameter Max

Cutting Direction

E E (11)
S S (62)

Rake Angle Style

NEUTRAL (ZERO) NEUTRAL (ZERO) (72)

range select

Maximum Bore Depth

1.23 1.23 in (1)
1.232 1.232 in (1)
1.291 1.291 in (1)
1.5 1.5 in (1)
1.891 1.891 in (2)
2.0 2.0 in (2)
2.499 2.499 in (1)
2.5 2.5 in (2)
2.52 2.52 in (2)
3.0 3.0 in (4)
3.15 3.15 in (2)
3.75 3.75 in (2)
3.781 3.781 in (2)
3.938 3.938 in (4)
4.0 4.0 in (6)
4.5 4.5 in (2)
4.724 4.724 in (1)
5.0 5.0 in (4)
5.039 5.039 in (2)
6.0 6.0 in (6)
6.299 6.299 in (4)
7.0 7.0 in (5)
7.875 7.875 in (2)
8.0 8.0 in (8)
10.0 10.0 in (6)

Maximum Bore Depth Min maxBoreDepth_I to Maximum Bore Depth Max Maximum Bore Depth Max

range select

Maximum Bore Depth

31.25 31.25 mm (1)
31.3 31.3 mm (1)
32.801 32.801 mm (1)
38.1 38.1 mm (1)
48.0 48.0 mm (2)
50.801 50.801 mm (2)
63.475 63.475 mm (1)
63.5 63.5 mm (2)
64.0 64.0 mm (2)
76.2 76.2 mm (4)
80.0 80.0 mm (2)
95.25 95.25 mm (2)
96.0 96.0 mm (2)
100.0 100.0 mm (4)
101.601 101.601 mm (6)
114.301 114.301 mm (2)
120.0 120.0 mm (1)
127.0 127.0 mm (4)
128.0 128.0 mm (2)
152.4 152.4 mm (6)
160.0 160.0 mm (4)
177.8 177.8 mm (5)
200.0 200.0 mm (2)
203.201 203.201 mm (8)
254.0 254.0 mm (6)

Maximum Bore Depth Min maxBoreDepth_M to Maximum Bore Depth Max Maximum Bore Depth Max

Boring Bar Material

C C (11)
S S (62)

Front-End

Clamp Style

N N (72)

range select

Cutting Width

0.02 0.02 in (25)
0.031 0.031 in (30)
0.035 0.035 in (25)
0.039 0.039 in (56)
0.041 0.041 in (25)
0.047 0.047 in (61)
0.055 0.055 in (25)
0.058 0.058 in (25)
0.06 0.06 in (56)
0.061 0.061 in (13)
0.062 0.062 in (61)
0.067 0.067 in (25)
0.069 0.069 in (56)
0.073 0.073 in (31)
0.077 0.077 in (25)
0.078 0.078 in (31)
0.079 0.079 in (56)
0.088 0.088 in (56)
0.089 0.089 in (56)
0.095 0.095 in (61)
0.097 0.097 in (31)
0.098 0.098 in (56)
0.105 0.105 in (31)
0.108 0.108 in (56)
0.11 0.11 in (31)
0.119 0.119 in (66)
0.122 0.122 in (31)
0.125 0.125 in (66)
0.126 0.126 in (66)
0.128 0.128 in (56)
0.129 0.129 in (25)
0.131 0.131 in (16)
0.138 0.138 in (66)
0.143 0.143 in (31)
0.147 0.147 in (13)
0.15 0.15 in (25)
0.152 0.152 in (25)
0.156 0.156 in (31)
0.157 0.157 in (41)
0.167 0.167 in (41)
0.169 0.169 in (31)
0.177 0.177 in (41)
0.178 0.178 in (31)
0.181 0.181 in (16)
0.185 0.185 in (36)
0.188 0.188 in (41)
0.189 0.189 in (41)
0.192 0.192 in (16)
0.193 0.193 in (16)
0.195 0.195 in (31)
0.197 0.197 in (10)
0.202 0.202 in (10)
0.213 0.213 in (10)
0.217 0.217 in (10)
0.218 0.218 in (2)
0.219 0.219 in (10)
0.237 0.237 in (10)
0.25 0.25 in (12)
0.255 0.255 in (10)
0.281 0.281 in (2)
0.312 0.312 in (2)
0.375 0.375 in (2)
0.383 0.383 in (2)

Cutting Width Min cuttingWidth_I to Cutting Width Max Cutting Width Max

range select

Cutting Width

0.5 0.5 mm (25)
0.775 0.775 mm (30)
0.8 0.8 mm (25)
0.9 0.9 mm (25)
1.0 1.0 mm (56)
1.05 1.05 mm (25)
1.201 1.201 mm (61)
1.401 1.401 mm (25)
1.475 1.475 mm (25)
1.5 1.5 mm (56)
1.55 1.55 mm (13)
1.576 1.576 mm (61)
1.701 1.701 mm (25)
1.75 1.75 mm (56)
1.826 1.826 mm (31)
1.951 1.951 mm (25)
1.975 1.975 mm (31)
2.0 2.0 mm (56)
2.2 2.2 mm (56)
2.225 2.225 mm (56)
2.25 2.25 mm (56)
2.401 2.401 mm (61)
2.475 2.475 mm (31)
2.5 2.5 mm (56)
2.676 2.676 mm (31)
2.75 2.75 mm (56)
2.801 2.801 mm (31)
3.0 3.0 mm (66)
3.1 3.1 mm (31)
3.176 3.176 mm (66)
3.2 3.2 mm (66)
3.25 3.25 mm (56)
3.276 3.276 mm (25)
3.325 3.325 mm (16)
3.5 3.5 mm (66)
3.6 3.6 mm (31)
3.725 3.725 mm (13)
3.801 3.801 mm (25)
3.85 3.85 mm (25)
3.95 3.95 mm (31)
3.975 3.975 mm (16)
4.0 4.0 mm (41)
4.25 4.25 mm (41)
4.3 4.3 mm (31)
4.5 4.5 mm (41)
4.525 4.525 mm (31)
4.601 4.601 mm (16)
4.7 4.7 mm (36)
4.775 4.775 mm (41)
4.801 4.801 mm (41)
4.875 4.875 mm (16)
4.9 4.9 mm (16)
4.95 4.95 mm (31)
5.0 5.0 mm (10)
5.125 5.125 mm (10)
5.4 5.4 mm (10)
5.5 5.5 mm (10)
5.525 5.525 mm (2)
5.575 5.575 mm (10)
6.0 6.0 mm (10)
6.351 6.351 mm (12)
6.476 6.476 mm (10)
7.125 7.125 mm (2)
7.926 7.926 mm (2)
9.525 9.525 mm (2)
9.726 9.726 mm (2)

Cutting Width Min cuttingWidth_M to Cutting Width Max Cutting Width Max

Insert Size

1 1 (5)
2 2 (25)
3 3 (31)
4 4 (10)
6 6 (2)

range select

Maximum Cutting Depth

0.04 0.04 in (1)
0.063 0.063 in (2)
0.067 0.067 in (1)
0.075 0.075 in (1)

Maximum Cutting Depth Min maxCuttingDepth_I to Maximum Cutting Depth Max Maximum Cutting Depth Max

range select

Maximum Cutting Depth

1.026 1.026 mm (1)
1.6 1.6 mm (2)
1.701 1.701 mm (1)
1.901 1.901 mm (1)

Maximum Cutting Depth Min maxCuttingDepth_M to Maximum Cutting Depth Max Maximum Cutting Depth Max

Insert Geometry

Cutting Tool Material

B H B H (41)
B L B L (31)
C N C N (41)
D P D P (36)
H T H T (66)
H W H W (73)

Back-End

Connection Type

BORING BAR BORING BAR (72)

range select

Back-End Diameter

9.525 9.525 mm (1)
10.0 10.0 mm (1)
12.0 12.0 mm (3)
12.701 12.701 mm (5)
15.875 15.875 mm (5)
16.0 16.0 mm (4)
19.05 19.05 mm (4)
20.0 20.0 mm (3)
25.0 25.0 mm (4)
25.401 25.401 mm (8)
31.75 31.75 mm (4)
32.0 32.0 mm (2)
38.1 38.1 mm (4)
40.0 40.0 mm (4)
44.45 44.45 mm (5)
50.0 50.0 mm (2)
50.801 50.801 mm (8)
63.5 63.5 mm (6)

Back-End Diameter Min backendDiameter_M to Back-End Diameter Max Back-End Diameter Max

range select

Back-End Diameter

0.375 0.375 in (1)
0.394 0.394 in (1)
0.473 0.473 in (3)
0.5 0.5 in (5)
0.625 0.625 in (5)
0.63 0.63 in (4)
0.75 0.75 in (4)
0.787 0.787 in (3)
0.984 0.984 in (4)
1.0 1.0 in (8)
1.25