DRILLS REAMERS COUNTERBORES END MILLS CUTTERS SINGLE POINTS
REAMERS - GENERAL PURPOSE CHUCKING REAMERS - Left Spiral Flutes - Straight Shank
Fractional   Metric

TOOL SELECTOR
CHIP
CLASS		MATERIAL MACHINEDTOOL TYPE
 20  NON-FERROUS - LONG CHIPS  420 / 433 
 40  NON-FERROUS - SHORT CHIPS  420 / 433 
 60  CAST IRONS  420 / 437 
 80  LOW STRENGTH STEELS  420 / 439 
 100  MEDIUM STRENGTH STEELS  420 / 439 
 120  HIGH STRENGTH STEELS  420 / 439 
 140  HIGH TEMPERATURE ALLOYS  439

Type 420 Fractional - Left Spiral Flutes - Straight Shank
Carbide Tipped
  • Polished flutes
  • Used on thru holes for heat treated steels, hard cast irons and other hard materials
  • Finishes are much better as spiral flutes tend to bridge interruptions such as keyways, slots, or intersecting holes
  • Left spiral flutes should not be used on blind holes
  • Carbide tips brazed to tough hardened alloy steel body, except expansion reamers which are not hardened
  • Polished flutes for easy chip flow
  • Precision ground cutting edges
 		  Modifications: (Prompt delivery)
  • 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 
Tool Diameter Type 420
EDP NO.		 Fractional
Price		 Dimensions Finished To Modified Tool Diameter
Shank Diameter 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*
   3/16  .1875 42006 $42.20   11/64 4 1  1/8     1/2  4  1/2   .1770  .2040 $69.60 $55.90 $51.30 $49.10 $46.75 $44.90
   7/32  .2188 42007 42.20   13/64 4 1  1/4     1/2  5          .2041  .2210 69.60 55.90 51.30 49.10 46.75 44.90
  15/64  .2344 4202344 42.20    7/32 4 1  1/2     1/2  6          .2211  .2380 69.60 55.90 51.30 49.10 46.75 44.90
   1/4   .2500 42008 42.20   15/64 4 1  1/2     1/2  6          .2381  .2530 69.60 55.90 51.30 49.10 46.75 44.90
   9/32  .2813 42009 42.35   15/64 4 1  1/2     1/2  6          .2531  .2840 69.70 56.00 51.40 49.20 46.85 45.00
   5/16  .3125 42010 42.35    9/32 4 1  1/2     1/2  6          .2841  .3150 69.70 56.00 51.40 49.20 46.85 45.00
  11/32  .3438 42011 46.60    9/32 4 1  1/2     5/8  6          .3151  .3470 74.00 60.25 55.65 53.50 51.15 49.30
   3/8   .3750 42012 47.05    5/16 4 1  3/4     5/8  7          .3471  .3780 74.40 60.70 56.10 53.95 51.60 49.75
  13/32  .4063 42013 49.15    5/16 4 1  3/4     5/8  7          .3781  .4090 76.55 62.85 58.25 56.05 53.70 51.85
   7/16  .4375 42014 51.15    3/8  4 1  3/4     5/8  7          .4091  .4410 78.50 64.80 60.20 58.00 55.65 53.80
  15/32  .4688 42015 54.25    3/8  4 1  3/4     5/8  7          .4411  .4720 81.65 67.95 63.35 61.15 58.80 56.95
   1/2   .5000 42016 56.30    7/16 6 2            5/8  8          .4721  .5030 84.40 70.30 65.60 63.35 60.95 59.05
  17/32  .5313 42017 58.00    7/16 6 2            5/8  8          .5031  .5340 86.15 72.05 67.35 65.10 62.70 60.80
   9/16  .5625 42018 58.00    7/16 6 2            5/8  8          .5341  .5660 86.15 72.05 67.35 65.10 62.70 60.80
  19/32  .5938 42019 59.75    7/16 6 2            5/8  8          .5661  .5970 87.85 73.75 69.05 66.80 64.40 62.50
   5/8   .6250 42020 59.75    9/16 6 2  1/4     5/8  9          .5971  .6280 87.85 73.75 69.05 66.80 64.40 62.50
  21/32  .6563 42021 61.45    9/16 6 2  1/4     5/8  9          .6281  .6590 89.60 75.50 70.80 68.55 66.10 64.25
  11/16  .6875 42022 65.45    9/16 6 2  1/4     5/8  9          .6591  .6910 93.55 79.45 74.75 72.50 70.10 68.20
  23/32  .7188 42023 66.35    9/16 6 2  1/4     5/8  9          .6911  .7220 94.45 80.40 75.65 73.45 71.00 69.10
   3/4   .7500 42024 67.40    5/8  6 2  1/2     3/4  9  1/2   .7221  .7530 95.50 81.40 76.70 74.45 72.05 70.15
  25/32  .7813 42025 69.10    5/8  6 2  1/2     3/4  9  1/2   .7531  .7840 97.25 83.15 78.45 76.20 73.75 71.90
  13/16  .8125 42026 69.10    5/8  6 2  1/2     3/4  9  1/2   .7841  .8160 97.25 83.15 78.45 76.20 73.75 71.90
  27/32  .8438 42027 72.90    5/8  6 2  1/2     3/4  9  1/2   .8161  .8470 101.05 86.95 82.20 80.00 77.55 75.65
   7/8   .8750 42028 72.90    3/4  6 2  5/8     3/4  10          .8471  .8780 101.05 86.95 82.20 80.00 77.55 75.65
  29/32  .9063 42029 84.95    3/4  6 2  5/8     3/4  10          .8781  .9090 113.05 98.95 94.25 92.00 89.60 87.70
  15/16  .9375 42030 84.95    3/4  8 2  5/8     3/4  10          .9091  .9410 113.05 98.95 94.25 92.00 89.60 87.70
  31/32  .9688 42031 89.05    3/4  8 2  5/8     3/4  10          .9411  .9720 117.20 103.10 98.40 96.15 93.70 91.85
1         1.0000 42032 89.05    7/8  8 2  3/4     3/4  10  1/2   .9721 1.0030 117.20 103.10 98.40 96.15 93.70 91.85
1  1/16 1.0625 42034 95.55    7/8  8 2  3/4     3/4  10  1/2  1.0031 1.0660 123.70 109.60 104.90 102.65 100.20 98.30
1  1/8  1.1250 42036 98.50    7/8  8 2  7/8     7/8  11         1.0661 1.1280 126.60 112.55 107.80 105.55 103.15 101.25
1  3/16 1.1875 42038 103.50 1         8 2  7/8     7/8  11         1.1281 1.1905 131.60 117.55 112.80 110.55 108.15 106.25
1  1/4  1.2500 42040 109.55 1         8 3            7/8  11  1/2  1.1906 1.2530 137.65 123.55 118.85 116.60 114.20 112.30
1  5/16 1.3125 42042 121.20 1         8 3            7/8  11  1/2  1.2531 1.3155 149.35 135.25 130.50 128.30 125.85 123.95
1  3/8  1.3750 42044 132.80 1         8 3  1/4     7/8  12         1.3156 1.3780 160.95 146.85 142.15 139.90 137.50 135.60
1  7/16 1.4375 42046 140.70 1  1/4  8 3  1/4     7/8  12         1.3781 1.4405 168.80 154.75 150.00 147.80 145.35 143.45
1  1/2  1.5000 42048 148.65 1  1/4  8 3  1/2     7/8  12  1/2  1.4406 1.5030 176.75 162.65 157.95 155.70 153.30 151.40
* Quantities of 15 or more - price of fractional size in same size range