CHUCKING REAMERS — CARBIDE TIPPED

LEFT SPIRAL FLUTES — STRAIGHT SHANK

TYPE 2420 — LEFT SPIRAL FLUTES — STRAIGHT SHANK

Straight shanks and polished spiral flutes.
Carbide tips brazed to one piece hardened tool steel bodies.
Cutting diameter tolerance plus .0003" minus .0000".

USE:

Left spiral flutes should only be used on through holes for heat treated steels, hard cast iron and other hard materials.
Finishes are much better as spiral flutes tend to bridge interruptions such as keyways, slots or intersecting holes.

OPTIONS

Intermediate decimal & metric sizes (priced as indicated in extended table below).
Cutting diameter reduced for small steps or pilot.
Radius end or end chamfer other than 45ยบ.
End cutting.
Rose grind (twice normal back taper).
Short shank or undersized shank diameter.
Flat on shank or tanged shank.
Semi-finished type reamers in stock.
Closer tolerance.
For +.0002" add $1.00 per tool.
For +.0001" add $3.00 per tool.


Below are the critical dimensions of our Chucking Reamers. Please choose the Reamers that meets your tooling needs.
Tool
Diameter
Dimensions Type 2420
EDP NO.
Price Finished To Modified Tool Diameter
Shank Diameter No. of Flutes Length Modified Diameter Range Price Each - Based on Quantity Ordered
Frac. Dec. Flute Overall Low High 1 2 3 4 5-7 8-14*
   3/16  .1875   11/64 4  1/  1/ 242006 $44.75  .1770  .2040 $73.80 $59.25 $54.40 $52.05 $49.55 $47.60
   7/32  .2188   13/64 4  1/         242007 44.75  .2041  .2210 73.80 59.25 54.40 52.05 49.55 47.60
  15/64  .2344    7/32 4  1/         24202344 44.75  .2211  .2380 73.80 59.25 54.40 52.05 49.55 47.60
   1/  .2500   15/64 4  1/         242008 44.75  .2381  .2530 73.80 59.25 54.40 52.05 49.55 47.60
   9/32  .2813   15/64 4  1/         242009 44.90  .2531  .2840 73.90 59.35 54.50 52.15 49.65 47.70
   5/16  .3125    9/32 4  1/         242010 44.90  .2841  .3150 73.90 59.35 54.50 52.15 49.65 47.70
  11/32  .3438    9/32 4  1/         242011 49.40  .3151  .3470 78.45 63.85 59.00 56.70 54.20 52.25
   3/  .3750    5/16 4  3/         242012 49.85  .3471  .3780 78.85 64.35 59.45 57.20 54.70 52.75
  13/32  .4063    5/16 4  3/         242013 52.10  .3781  .4090 81.15 66.60 61.75 59.40 56.90 54.95
   7/16  .4375    3/ 4  3/         242014 54.20  .4091  .4410 83.20 68.70 63.80 61.50 59.00 57.05
  15/32  .4688    3/ 4  3/         242015 57.50  .4411  .4720 86.55 72.05 67.15 64.80 62.35 60.35
   1/  .5000    7/16 6                 242016 59.70  .4721  .5030 89.45 74.50 69.55 67.15 64.60 62.60
  17/32  .5313    7/16 6                 242017 61.50  .5031  .5340 91.30 76.35 71.40 69.00 66.45 64.45
   9/16  .5625    7/16 6                 242018 61.50  .5341  .5660 91.30 76.35 71.40 69.00 66.45 64.45
  19/32  .5938    7/16 6                 242019 63.35  .5661  .5970 93.10 78.20 73.20 70.80 68.25 66.25
   5/  .6250    9/16 6  1/         242020 63.35  .5971  .6280 93.10 78.20 73.20 70.80 68.25 66.25
  21/32  .6563    9/16 6  1/         242021 65.15  .6281  .6590 95.00 80.05 75.05 72.65 70.05 68.10
  11/16  .6875    9/16 6  1/         242022 69.40  .6591  .6910 99.15 84.20 79.25 76.85 74.30 72.30
  23/32  .7188    9/16 6  1/         242023 70.35  .6911  .7220 100.10 85.20 80.20 77.85 75.25 73.25
   3/  .7500    5/ 6  1/  1/ 242024 71.45  .7221  .7530 101.25 86.30 81.30 78.90 76.35 74.35
  25/32  .7813    5/ 6  1/  1/ 242025 73.25  .7531  .7840 103.10 88.15 83.15 80.75 78.20 76.20
  13/16  .8125    5/ 6  1/  1/ 242026 73.25  .7841  .8160 103.10 88.15 83.15 80.75 78.20 76.20
  27/32  .8438    5/ 6  1/  1/ 242027 77.25  .8161  .8470 107.10 92.15 87.15 84.80 82.20 80.20
   7/  .8750    3/ 6  5/ 10         242028 80.20  .8471  .8780 111.15 95.65 90.40 88.00 85.30 83.20
  29/32  .9063    3/ 6  5/ 10         242029 93.45  .8781  .9090 124.35 108.85 103.70 101.20 98.55 96.45
  15/16  .9375    3/ 8  5/ 10         242030 93.45  .9091  .9410 124.35 108.85 103.70 101.20 98.55 96.45
  31/32  .9688    3/ 8  5/ 10         242031 97.95  .9411  .9720 128.90 113.40 108.25 105.75 103.05 101.05
        1.0000    7/ 8  3/ 10  1/ 242032 97.95  .9721 1.0030 128.90 113.40 108.25 105.75 103.05 101.05
 1/16 1.0625    7/ 8  3/ 10  1/ 242034 105.10 1.0031 1.0660 136.05 120.55 115.40 112.90 110.20 108.15
 1/ 1.1250    7/ 8  7/ 11         242036 108.35 1.0661 1.1280 139.25 123.80 118.60 116.10 113.45 111.40
 3/16 1.1875         8  7/ 11         242038 113.85 1.1281 1.1905 144.75 129.30 124.10 121.60 118.95 116.90
 1/ 1.2500         8         11  1/ 242040 120.50 1.1906 1.2530 151.40 135.90 130.75 128.25 125.60 123.55
 5/16 1.3125         8         11  1/ 242042 133.30 1.2531 1.3155 164.30 148.80 143.55 141.15 138.45 136.35
 3/ 1.3750         8  1/ 12         242044 146.10 1.3156 1.3780 177.05 161.55 156.35 153.90 151.25 149.15
 7/16 1.4375  1/ 8  1/ 12         242046 154.75 1.3781 1.4405 185.70 170.20 165.00 162.60 159.90 157.80
 1/ 1.5000  1/ 8  1/ 12  1/ 242048 163.50 1.4406 1.5030 194.40 178.90 173.75 171.25 168.65 166.55
* Quantities of 15 or more - price of fractional size in same size range
Don't see the Chucking Reamers you need?
If the above dimensions do not meet your specific Chucking Reamers needs we may be able to make modifications to one of the above Chucking Reamers or we can quote a full special to your exact requirements. Simply click here to view and print our special tool quote form. Fill it out and fax (800-867-9312) it back to Rock River Tool. We will let you know how we will provide the Chucking Reamers you requested.
Thank you for using Rock River Tool for your Chucking Reamers needs.