Standard - Boring Tools - Helical Back Rake

Standard - Boring Tools
HBB / HBBM | Turning Tools

The helical grind on this helical back rake line of tooling provides ideal top rake for better chip control and freer cutting, and features a neck that's centered to shank for use in jig bore machines.

  • Designed for boring
  • Polished face for improved edge retention and chip evacuation while reducing galling
  • Helical grind provides ideal top rake for better chip control and freer cutting
  • Uncoated variant ideal for plastics
  • On center neck design allows for static (D1) and live/rotating (DR) applications
  • Cylindrical shank (no set screw flat)
  • AlTiN coated option provides added lubricity and increased wear resistance in difficult to machine materials
  • CNC ground in the USA

Advanced Search

Minimum Bore Diameter Minimum Rotational Bore Diameter Maximum Bore Depth Neck Diameter Centerline Offset Shank Diameter Overall Length Uncoated AlTiN Coated Add to Cart Default Sort
D1 +.0010"/-.0000" D1 +.03 mm / -.00 mm decimal equiv. DR L2 +.032"/-.000"
+.81 mm / -.00 mm
D3 +.000"/-.002"
+.00 mm / -.05 mm
F D2 (h6) L1 Tool # Price Tool # Price
.0175 .0175 .020 .063 .015 .010 .1250 1.5 HBB-020062 HBB-020062X 00000001
0.45 mm .0177 0.5 mm 2 mm 0.4 mm 0.25 mm 3 mm 38 mm HBM-005002 00000002
.0225 .0225 .025 .063 .020 .013 .1250 1.5 HBB-025062 00000003
.0225 .0225 .025 .125 .020 .013 .1250 1.5 HBB-025125 00000004
0.65 mm .0256 0.7 mm 3 mm 0.6 mm 0.35 mm 3 mm 38 mm HBM-007003 00000005
.0275 .0275 .030 .125 .025 .015 .1250 1.5 HBB-030125 00000006
.0275 .0275 .030 .188 .025 .015 .1250 1.5 HBB-030187 00000007
0.75 mm .0295 0.8 mm 4 mm 0.7 mm 0.40 mm 3 mm 38 mm HBM-008004 00000008
.0325 .0325 .035 .125 .030 .018 .1250 1.5 HBB-035125 00000009
.0325 .0325 .035 .188 .030 .018 .1250 1.5 HBB-035187 HBB-035187X 00000010
0.85 mm .0335 0.9 mm 5 mm 0.8 mm 0.45 mm 3 mm 38 mm HBM-009005 00000011
0.90 mm .0354 1.0 mm 6 mm 0.8 mm 0.50 mm 3 mm 38 mm HBM-010006 00000012
.0375 .0375 .040 .188 .035 .020 .1250 1.5 HBB-040187 00000013
.0375 .0375 .040 .250 .035 .020 .1250 1.5 HBB-040250 00000014
.0450 .0450 .050 .313 .040 .025 .1250 1.5 HBB-050312 HBB-050312X 00000015
1.35 mm .0532 1.5 mm 9 mm 1.2 mm 0.75 mm 3 mm 38 mm HBM-015009 00000016
.0550 .0550 .060 .375 .050 .030 .1250 1.5 HBB-060375 HBB-060375X 00000017
1.63 mm .0642 1.75 mm 10 mm 1.5 mm 0.88 mm 3 mm 38 mm HBM-017510 00000018
.0650 .0650 .070 .438 .060 .035 .1250 1.5 HBB-070437 00000019
.0750 .0750 .080 .500 .070 .040 .1250 1.5 HBB-080500 HBB-080500X 00000020
2.05 mm .0807 2.26 mm 12 mm 1.9 mm 1.13 mm 3 mm 38 mm HBM-022512 00000021
.0850 .0850 .090 .500 .080 .045 .1250 1.5 HBB-090500 HBB-090500X 00000022
.0950 .0950 .100 .563 .090 .050 .1250 1.5 HBB-100562 HBB-100562X 00000023
2.58 mm .1016 2.75 mm 14 mm 2.4 mm 1.38 mm 3 mm 38 mm HBM-027514 00000024
2.75 mm .1083 3.0 mm 16 mm 2.5 mm 1.50 mm 4 mm 50 mm HBM-030016 00000025
.1100 .1100 .120 .625 .100 .060 .1250 1.5 HBB-120625 HBB-120625X 00000026
.1100 .1100 .120 1.000 .100 .060 .1250 1.5 HBB-1201000 HBB-1201000X 00000027
.1225 .1225 .135 .750 .110 .068 .1875 2.0 HBB-135750 00000028
.1225 .1225 .135 1.000 .110 .068 .1875 2.0 HBB-1351000 HBB-1351000X 00000029
.1400 .1400 .150 1.000 .130 .075 .1875 2.0 HBB-1501000 HBB-1501000X 00000030
.1400 .1400 .150 1.250 .130 .075 .1875 2.0 HBB-1501250 HBB-1501250X 00000031
3.65 mm .1437 4.0 mm 25 mm 3.3 mm 2.00 mm 6 mm 57 mm HBM-040025X 00000032
4.15 mm .1634 4.5 mm 30 mm 3.8 mm 2.25 mm 6 mm 57 mm HBM-045030 00000033
.1700 .1700 .180 1.000 .160 .090 .1875 2.0 HBB-1801000 HBB-1801000X 00000034
.1700 .1700 .180 1.250 .160 .090 .1875 2.0 HBB-1801250 HBB-1801250X 00000035
.1700 .1700 .180 1.500 .160 .090 .1875 2.0 HBB-1801500 00000036
.1975 .1975 .210 1.000 .185 .105 .2500 2.5 HBB-2101000 00000037
.1975 .1975 .210 1.250 .185 .105 .2500 2.5 HBB-2101250 HBB-2101250X 00000038
.1975 .1975 .210 1.500 .185 .105 .2500 2.5 HBB-2101500 HBB-2101500X 00000039
5.15 mm .2028 5.5 mm 35 mm 4.8 mm 2.75 mm 6 mm 57 mm HBM-055035 00000040
.2275 .2275 .240 1.000 .215 .120 .2500 2.5 HBB-2401000 00000041
.2275 .2275 .240 1.500 .215 .120 .2500 2.5 HBB-2401500 HBB-2401500X 00000042
.2275 .2275 .240 1.750 .215 .120 .2500 2.5 HBB-2401750 HBB-2401750X 00000043
.2750 .2750 .300 1.000 .250 .150 .3125 2.5 HBB-3001000 00000044
.2750 .2750 .300 1.500 .250 .150 .3125 2.5 HBB-3001500 HBB-3001500X 00000045
.2750 .2750 .300 1.750 .250 .150 .3125 2.5 HBB-3001750 HBB-3001750X 00000046
.3400 .3400 .360 1.000 .320 .180 .3750 2.5 HBB-3601000 00000047
.3400 .3400 .360 1.500 .320 .180 .3750 2.5 HBB-3601500 00000048
.3400 .3400 .360 2.000 .320 .180 .3750 4.0 HBB-3602000 HBB-3602000X 00000049
.3400 .3400 .360 2.500 .320 .180 .3750 4.0 HBB-3602500 HBB-3602500X 00000050
.4600 .4600 .480 3.000 .440 .240 .5000 4.0 HBB-4803000 00000051

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