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Steel Boring Bars

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  • P Steel (852)
    • P0
      Low-Carbon Steels, Long Chipping C < .25%; <125 HB; <530 N/mm^2 UTS (851)
    • P1
      Low-Carbon Steels, Short Chipping C < .25%; <125 HB; <530 N/mm^2 UTS (851)
    • P2
      Medium and High Carbon Steels C < .25%; <220 HB; <25 HRC; >530 N/mm^2 UTS (851)
    • P3
      Alloy Steels & Tool Steels C > .25%; <330 HB; <35 HRC; 600-850 N/mm^2 UTS (851)
    • P4
      Alloy Steels & Tool Steels C > .25%; 350-420 HB; 35-43 HRC; 850-1400 N/mm^2 UTS (851)
    • P5
      Ferritic, Martensitic, and PH Stainless Steels <330 HB; <35 HRC; 600-900 N/mm^2 UTS (852)
    • P6
      High Strength Ferritic, Martensitic, and PH Stainless Steels 350-450 HB; 35-43 HRC; 900-2400 N/mm^2 UTS (852)
  • M Stainless Steel (852)
    • M1
      Austenitic Stainless Steel 130-200 HB; <600 N/mm^2 UTS (852)
    • M2
      High Strength Austenitic Stainless and Cast Stainless Steels 150-230 HB; <25 HRC; >600 N/mm^2 UTS (852)
    • M3
      Duplex Stainless Steel 135-275 HB; <30 HRC; 500-1200 N/mm^2 UTS (852)
  • K Cast Iron (858)
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      Gray Cast Iron 120-290 HB; <32 HRC; 125-500 N/mm^2 UTS (858)
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    • K3
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  • N Non-Ferrous Materials (849)
    • N1
      Wrought Aluminum (847)
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  • S High-Temp Alloys (860)
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  • H Hardened Materials (780)
    • H1
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  • C CFRP Materials (846)
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  • 63.5 mm (9)
  • 65.0 mm (1)
  • 65.825 mm (4)
  • 76.95 mm (16)
  • 82.551 mm (3)
Minimum Axial Groove Diameter Min to Minimum Axial Groove Diameter Max
Minimum Axial Groove Diameter
Minimum Axial Groove Diameter
  • 0.18 in (4)
  • 0.205 in (8)
  • 0.227 in (3)
  • 0.228 in (5)
  • 0.23 in (1)
  • 0.234 in (2)
  • 0.237 in (1)
  • 0.243 in (1)
  • 0.244 in (1)
  • 0.26 in (1)
  • 0.267 in (1)
  • 0.275 in (1)
  • 0.28 in (4)
  • 0.286 in (6)
  • 0.292 in (2)
  • 0.295 in (1)
  • 0.296 in (2)
  • 0.299 in (1)
  • 0.3 in (2)
  • 0.321 in (1)
  • 0.347 in (2)
  • 0.356 in (2)
  • 0.358 in (1)
  • 0.36 in (2)
  • 0.416 in (4)
  • 0.433 in (8)
  • 0.48 in (16)
  • 0.49 in (1)
  • 0.508 in (1)
  • 0.512 in (23)
  • 0.564 in (1)
  • 0.6 in (24)
  • 0.63 in (32)
  • 0.65 in (1)
  • 0.73 in (7)
  • 0.77 in (24)
  • 0.787 in (41)
  • 0.842 in (1)
  • 0.85 in (7)
  • 0.93 in (23)
  • 0.98 in (12)
  • 0.984 in (44)
  • 1.03 in (1)
  • 1.06 in (1)
  • 1.063 in (2)
  • 1.19 in (1)
  • 1.2 in (31)
  • 1.22 in (8)
  • 1.26 in (110)
  • 1.286 in (2)
  • 1.3 in (18)
  • 1.31 in (1)
  • 1.457 in (3)
  • 1.47 in (16)
  • 1.472 in (3)
  • 1.55 in (3)
  • 1.575 in (79)
  • 1.625 in (2)
  • 1.7 in (2)
  • 1.705 in (22)
  • 1.76 in (28)
  • 1.77 in (1)
  • 1.772 in (2)
  • 1.81 in (1)
  • 1.875 in (2)
  • 1.891 in (1)
  • 1.969 in (62)
  • 2.0 in (25)
  • 2.011 in (11)
  • 2.047 in (2)
  • 2.125 in (3)
  • 2.165 in (6)
  • 2.25 in (4)
  • 2.323 in (2)
  • 2.4 in (23)
  • 2.48 in (25)
  • 2.5 in (9)
  • 2.559 in (1)
  • 2.592 in (4)
  • 3.031 in (16)
  • 3.25 in (3)
Minimum Axial Groove Diameter Min to Minimum Axial Groove Diameter Max
Cutting Direction
Cutting Direction
  • B (432)
  • E (401)
  • P (17)
Rake Angle Style
Rake Angle Style
  • DOUBLE NEGATIVE (459)
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  • NEUTRAL (ZERO) (74)
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  • POSITIVE-ZERO (69)
Maximum Bore Depth
Maximum Bore Depth
  • 0.484 in (1)
  • 0.5 in (7)
  • 0.63 in (2)
  • 0.75 in (7)
  • 0.787 in (2)
  • 0.946 in (5)
  • 0.982 in (1)
  • 0.984 in (1)
  • 1.0 in (14)
  • 1.018 in (1)
  • 1.25 in (9)
  • 1.26 in (14)
  • 1.379 in (2)
  • 1.385 in (3)
  • 1.43 in (1)
  • 1.499 in (13)
  • 1.5 in (8)
  • 1.508 in (3)
  • 1.575 in (15)
  • 1.609 in (1)
  • 1.625 in (1)
  • 1.655 in (1)
  • 1.661 in (6)
  • 1.701 in (2)
  • 1.891 in (22)
  • 1.907 in (2)
  • 1.938 in (2)
  • 1.969 in (2)
  • 1.986 in (2)
  • 2.0 in (29)
  • 2.169 in (11)
  • 2.205 in (2)
  • 2.209 in (6)
  • 2.283 in (4)
  • 2.311 in (1)
  • 2.362 in (7)
  • 2.382 in (4)
  • 2.444 in (3)
  • 2.499 in (11)
  • 2.5 in (22)
  • 2.52 in (31)
  • 2.757 in (9)
  • 2.77 in (1)
  • 2.775 in (4)
  • 2.953 in (2)
  • 2.955 in (11)
  • 2.992 in (1)
  • 2.993 in (6)
  • 3.0 in (33)
  • 3.037 in (4)
  • 3.044 in (8)
  • 3.124 in (2)
  • 3.132 in (1)
  • 3.15 in (32)
  • 3.152 in (2)
  • 3.2 in (4)
  • 3.434 in (6)
  • 3.473 in (8)
  • 3.476 in (2)
  • 3.485 in (2)
  • 3.5 in (1)
  • 3.593 in (2)
  • 3.594 in (2)
  • 3.781 in (6)
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  • 3.938 in (49)
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  • 4.464 in (1)
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  • 5.0 in (16)
  • 5.039 in (39)
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  • 5.513 in (2)
  • 5.883 in (8)
  • 6.0 in (36)
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  • 25.0 in (10)
Maximum Bore Depth Min to Maximum Bore Depth Max
Maximum Bore Depth
Maximum Bore Depth
  • 12.3 mm (1)
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Front-End
Clamp Style
Clamp Style
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Insert Shape
Insert Shape
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Maximum Cutting Depth
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Maximum Cutting Depth
Maximum Cutting Depth
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Insert Geometry
Cutting Tool Material
Cutting Tool Material
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System Size
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Back-End Diameter
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Back-End Diameter Min to Back-End Diameter Max
Back-End Diameter
Back-End Diameter
  • 0.157 in (2)
  • 0.187 in (7)
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Back-End Diameter Min to Back-End Diameter Max
Shank Height
Shank Height
  • 0.301 in (1)
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Shank Height
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Shank Width
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Shank Width
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Shank Width Min to Shank Width Max
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