Type 426 Fractional
Tools - Reamers - Coolant Fed Reamers - Reamers with Straight Flutes and Flute Fed Coolant

Chip ClassMaterial MachinedTool Type
20NON-FERROUS - LONG CHIPS416
40NON-FERROUS - SHORT CHIPS416 / 426
60CAST IRONS426
80LOW STRENGTH STEELS435 / 426
100MEDIUM STRENGTH STEELS435
120HIGH STRENGTH STEELS435
140HIGH TEMPERATURE ALLOYS435

Description

  • Coolant outlets in each flute
  • Polished flutes; flute long carbide on .2841" tool diameter and larger
  • Geometry and carbide grade appropriate for material being machined
  • Carbide tips brazed to tough hardened alloy steel body
  • Polished flutes for easy chip flow
  • Precision ground cutting edges
  • Material specific reamer shanks are ground to next smallest shank diameter listed in NAS 897 if tool diameter is within .005" of shank diameter

Modifications

  • Modified tool diameter - priced below
  • 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

Use

  • Flute coolant outlets for reaming thru holes as chips are flushed forward through the hole being reamed
  • Improves hole finish and permits higher feeds & speeds with longer tool life
Decimal DiameterFractional DiameterCarbide LengthFlute LengthMax Shank DiameterNumber Of FlutesOverall LengthShank DiameterEDPPrice
0.453129/641 3/41 3/40.3730674264531 $187.25
0.484431/64220.4355684264844 $187.25
0.515633/64220.4355684265156 $198.10
0.296919/641 1/21 1/20.2792464262969 $178.40
0.328121/641 1/21 1/20.2792464263281 $178.40
0.359423/641 3/41 3/40.3105474263594 $178.40
0.390625/641 3/41 3/40.3105474263906 $182.75
0.421927/641 3/41 3/40.3730674264219 $187.25
0.203113/641/21 1/40.1805454262031 $160.80
0.234415/641/21 1/20.2265464262344 $160.80
0.265617/641/21 1/20.2485464262656 $164.40
1.87501 7/83 1/210141 1/242660 $568.00
1.93751 15/163 1/210141 1/242662 $604.30
2.000023 1/212141 1/242664 $626.20
1.56251 9/163 1/2812 1/21 1/442650 $423.80
1.62501 5/83 1/28131 1/442652 $466.00
1.68751 11/163 1/28131 1/442654 $474.10
1.75001 3/43 1/21013 1/21 1/442656 $518.10
1.81251 13/163 1/21013 1/21 1/242658 $539.50
1.25001 1/4330.9995811 1/242640 $330.40
1.31251 5/16330.9995811 1/242642 $339.95
1.37501 3/83 1/43 1/40.999581242644 $353.75
1.43751 7/163 1/43 1/40.999581242646 $364.70
1.50001 1/23 1/23 1/21.2495812 1/242648 $376.95
0.968831/322 5/82 5/80.749581042631 $295.05
1.000012 3/42 3/40.8745810 1/242632 $295.05
1.06251 1/162 3/42 3/40.8745810 1/242634 $311.90
1.12501 1/82 7/82 7/80.874581142636 $313.30
1.18751 3/162 7/82 7/80.999581142638 $326.20
0.812513/162 1/22 1/20.624569 1/242626 $240.15
0.843827/322 1/22 1/20.624569 1/242627 $247.40
0.87507/82 5/82 5/80.749561042628 $256.80
0.906229/322 5/82 5/80.749561042629 $288.25
0.937515/162 5/82 5/80.749581042630 $295.05
0.656221/322 1/42 1/40.56156942621 $224.70
0.687511/162 1/42 1/40.56156942622 $224.70
0.718823/322 1/42 1/40.56156942623 $240.15
0.75003/42 1/22 1/20.624569 1/242624 $240.15
0.781225/322 1/22 1/20.624569 1/242625 $240.15
0.50001/2220.43556842616 $187.25
0.531217/32220.43556842617 $198.10
0.56259/16220.43556842618 $200.95
0.593819/32220.43556842619 $202.70
0.62505/82 1/42 1/40.56156942620 $202.70
0.343811/321 1/21 1/20.27924642611 $178.40
0.37503/81 3/41 3/40.31054742612 $178.40
0.406213/321 3/41 3/40.31054742613 $182.75
0.43757/161 3/41 3/40.37306742614 $187.25
0.468815/321 3/41 3/40.37306742615 $187.25
0.18753/161/21 1/40.18054542606 $160.80
0.21887/321/21 1/40.20754542607 $160.80
0.25001/41/21 1/20.24054642608 $160.80
0.28129/321/21 1/20.24854642609 $164.40
0.31255/161 1/21 1/20.27924642610 $178.40
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