Type 428EL
Tools - Reamers - Extended Length Coolant Fed Reamers - Extended Length Coolant Fed Reamers with Left Spiral Flutes and Flute Fed Coolant for Through Holes

Chip ClassMaterial MachinedTool Type
20NON-FERROUS - LONG CHIPS427EL
40NON-FERROUS - SHORT CHIPS427EL / 428EL
60CAST IRONS428EL
80LOW STRENGTH STEELS429EL / 428EL
100MEDIUM STRENGTH STEELS429EL
120HIGH STRENGTH STEELS429EL
140HIGH TEMPERATURE ALLOYS429EL

Description

  • Coolant outlets in each flute
  • All Extended length reamers provided with controlled shank
  • Must specify overall length when ordering (centers supplied only at maximum overall length)

Modifications

  • Modified tool diameter - priced below
  • Metric tool diameter
  • Closer tool diameter tolerance
  • Cutting diameter reduced for step or pilot
  • End chamfer other than 45º
  • End cutting or corner radius
  • Increased / decreased circular margin
  • Increased / decreased tool diameter back taper
  • Shortened shank or reduced shank diameter
  • Flat(s) or tang on shank
Coatings available:
  • TITANIUM NITRIDE - TiN
  • TITANIUM CARBONITRIDE - TiCN
  • ZIRCONIUM NITRIDE - ZrN
  • AL TITANIUM NITRIDE - AITiN
Tool Diameter RangeFlute LengthMax Shank DiameterNumber Of FlutesOverall Length RangeShank DiameterEDP
0.9721 - 1.00302 3/4810 17/32 - 187/842832EL
0.8781 - 0.90902 5/8610 1/32 - 183/442829EL
0.9091 - 0.94102 5/8810 1/32 - 183/442830EL
0.9411 - 0.97202 5/8810 1/32 - 183/442831EL
0.8161 - 0.84702 1/269 17/32 - 185/842827EL
0.8471 - 0.87802 5/8610 1/32 - 183/442828EL
0.7531 - 0.78402 1/269 17/32 - 185/842825EL
0.7841 - 0.81602 1/269 17/32 - 185/842826EL
0.7221 - 0.75302 1/20.624569 17/32 - 1842824EL
0.6591 - 0.69102 1/40.561569 1/32 - 1842822EL
0.6911 - 0.72202 1/40.561569 1/32 - 1842823EL
0.5971 - 0.62802 1/40.561569 1/32 - 1842820EL
0.6281 - 0.65902 1/40.561569 1/32 - 1842821EL
0.5661 - 0.597020.435568 1/32 - 1642819EL
0.5031 - 0.534020.435568 1/32 - 1642817EL
0.5341 - 0.566020.435568 1/32 - 1642818EL
0.4721 - 0.503020.435568 1/32 - 1642816EL
0.4091 - 0.44101 3/40.373067 1/32 - 1442814EL
0.4411 - 0.47201 3/40.373067 1/32 - 1442815EL
0.3471 - 0.37801 3/40.310547 1/32 - 1442812EL
0.3781 - 0.40901 3/40.310547 1/32 - 1442813EL
0.2841 - 0.31501 1/20.279246 1/32 - 1242810EL
0.3151 - 0.34701 1/20.279246 1/32 - 1242811EL
0.2211 - 0.25301 1/20.219346 1/32 - 1242808EL
0.2531 - 0.28401 1/20.250546 1/32 - 1242809EL
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