Fractional


TOOL SELECTOR
CHIP
CLASS
MATERIAL MACHINEDTOOL TYPE
 20  NON-FERROUS - LONG CHIPS  427 
 40  NON-FERROUS - SHORT CHIPS  427 / 428 
 60  CAST IRONS  428 
 80  LOW STRENGTH STEELS  429 / 428 
 100  MEDIUM STRENGTH STEELS  429 
 120  HIGH STRENGTH STEELS  429 
 140  HIGH TEMPERATURE ALLOYS  429

Type 427 Fractional - For Non-Ferrous Materials
Carbide Tipped
  • Coolant outlets in each flute
  • Polished flutes; flute long carbide on .2841" tool diameter and larger
  • Left spiral flutes should not be used on blind holes
  • 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: (Prompt delivery)
  • 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 
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
Below is a list of standard Coolant Fed Reamers offered by Hannibal Carbide Tool. If you do not see the Coolant Fed Reamers you are looking for you can click here for our SPECIAL TOOL QUOTE REQUEST FORM and fax (573-221-1140) or email your request to Hannibal. Within 24 hours we will let you know how we can supply your Coolant Fed Reamers. For technical assistance with your Reamers please click here to fill out and submit our HANNIBAL TECHNICAL SUPPORT QUESTIONNAIRE.
Tool Diameter Type 427
EDP NO.
Fractional
Price
Dimensions Finished To Modified Tool Diameter
Max. Shank Diam. No. of Flutes Length Modified Diameter Range Price Each - Based on Quantity Ordered
Frac. Dec. Flute Carbide Overall Low High 1 2 3 4 5-7 8-14*
   1/  .2500 42708 $180.05  .2405 4  1/    1/          .2381  .2530 $224.25 $202.05 $194.70 $191.05 $187.35 $184.35
   9/32  .2813 42709 190.90  .2485 4  1/    1/          .2531  .2840 235.05 213.05 205.65 202.05 198.35 195.30
   5/16  .3125 42710 201.75  .2792 4  1/  1/          .2841  .3150 245.90 223.65 216.40 212.85 209.00 206.05
  11/32  .3438 42711 203.30  .2792 4  1/  1/          .3151  .3470 247.35 225.25 217.90 214.40 210.60 207.50
   3/  .3750 42712 205.25  .3105 4  3/  3/          .3471  .3780 249.60 227.40 220.00 216.45 212.60 209.75
  13/32  .4063 42713 206.10  .3105 4  3/  3/          .3781  .4090 250.35 228.25 220.80 217.30 213.40 210.55
   7/16  .4375 42714 208.05  .3730 6  3/  3/          .4091  .4410 252.35 230.15 222.75 219.25 215.50 212.40
  15/32  .4688 42715 209.90  .3730 6  3/  3/          .4411  .4720 254.05 232.05 224.60 221.10 217.30 214.25
   1/  .5000 42716 212.60  .4355 6                          .4721  .5030 256.95 234.70 227.30 223.65 220.00 217.05
  17/32  .5313 42717 217.10  .4355 6                          .5031  .5340 261.30 239.10 231.70 228.25 224.40 221.40
   9/16  .5625 42718 220.20  .4355 6                          .5341  .5660 264.45 242.30 234.85 231.40 227.55 224.60
  19/32  .5938 42719 224.80  .4355 6                          .5661  .5970 268.95 246.95 239.50 236.00 232.20 229.20
   5/  .6250 42720 229.00  .5615 6  1/  1/          .5971  .6280 273.20 251.10 243.60 240.15 236.30 233.35
  21/32  .6563 42721 253.60  .5615 6  1/  1/          .6281  .6590 297.85 275.65 268.25 264.75 260.95 257.90
  11/16  .6875 42722 258.70  .5615 6  1/  1/          .6591  .6910 303.00 280.85 273.35 269.90 266.10 263.15
  23/32  .7188 42723 264.30  .5615 6  1/  1/          .6911  .7220 308.45 286.30 278.85 275.35 271.55 268.55
   3/  .7500 42724 269.90  .6245 6  1/  1/  1/  .7221  .7530 314.05 292.00 284.45 281.05 277.20 274.25
  25/32  .7813 42725 274.50  .6245 6  1/  1/  1/  .7531  .7840 318.65 296.60 289.05 285.60 281.75 278.80
  13/16  .8125 42726 277.80  .6245 6  1/  1/  1/  .7841  .8160 321.90 299.90 292.45 288.90 285.15 282.10
  27/32  .8438 42727 282.85  .6245 6  1/  1/  1/  .8161  .8470 327.20 305.00 297.55 294.00 290.20 287.30
   7/  .8750 42728 298.25  .7495 6  5/  5/ 10          .8471  .8780 344.15 321.20 313.45 309.80 305.80 302.65
  29/32  .9063 42729 315.80  .7495 6  5/  5/ 10          .8781  .9090 361.70 338.65 331.00 327.35 323.45 320.35
  15/16  .9375 42730 331.25  .7495 8  5/  5/ 10          .9091  .9410 377.05 354.15 346.40 342.75 338.70 335.70
  31/32  .9688 42731 332.10  .7495 8  5/  5/ 10          .9411  .9720 377.90 355.00 347.20 343.55 339.60 336.55
        1.0000 42732 332.55  .8745 8  3/  3/ 10  1/  .9721 1.0030 378.40 355.45 347.75 344.05 340.05 336.95
 1/16 1.0625 42734 351.55  .8745 8  3/  3/ 10  1/ 1.0031 1.0660 397.40 374.45 366.70 363.05 359.15 356.00
 1/ 1.1250 42736 353.05  .8745 8  7/  7/ 11         1.0661 1.1280 398.95 375.90 368.25 364.55 360.70 357.55
 3/16 1.1875 42738 367.70  .9995 8  7/  7/ 11         1.1281 1.1905 413.40 390.40 382.80 379.15 375.25 372.10
 1/ 1.2500 42740 372.45  .9995 8                 11  1/ 1.1906 1.2530 418.35 395.35 387.70 384.00 380.05 376.95
 5/16 1.3125 42742 383.25  .9995 8                 11  1/ 1.2531 1.3155 429.10 406.10 398.30 394.70 390.80 387.70
 3/ 1.3750 42744 398.55  .9995 8  1/  1/ 12         1.3156 1.3780 444.60 421.60 413.80 410.25 406.30 403.15
 7/16 1.4375 42746 411.05  .9995 8  1/  1/ 12         1.3781 1.4405 457.05 434.00 426.35 422.70 418.80 415.65
 1/ 1.5000 42748 424.95 1.2495 8  1/  1/ 12  1/ 1.4406 1.5030 470.75 447.90 440.10 436.45 432.50 429.40
* Quantities of 15 or more - price of fractional size in same size range