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 $47.45  .1770  .2040 $78.25 $62.80 $57.65 $55.15 $52.50 $50.45
   7/32  .2188   13/64 4  1/         242007 47.45  .2041  .2210 78.25 62.80 57.65 55.15 52.50 50.45
  15/64  .2344    7/32 4  1/         24202344 47.45  .2211  .2380 78.25 62.80 57.65 55.15 52.50 50.45
   1/  .2500   15/64 4  1/         242008 47.45  .2381  .2530 78.25 62.80 57.65 55.15 52.50 50.45
   9/32  .2813   15/64 4  1/         242009 47.60  .2531  .2840 78.35 62.90 57.75 55.30 52.65 50.55
   5/16  .3125    9/32 4  1/         242010 47.60  .2841  .3150 78.35 62.90 57.75 55.30 52.65 50.55
  11/32  .3438    9/32 4  1/         242011 52.35  .3151  .3470 83.15 67.70 62.55 60.10 57.45 55.40
   3/  .3750    5/16 4  3/         242012 52.85  .3471  .3780 83.60 68.20 63.00 60.65 58.00 55.90
  13/32  .4063    5/16 4  3/         242013 55.25  .3781  .4090 86.00 70.60 65.45 62.95 60.30 58.25
   7/16  .4375    3/ 4  3/         242014 57.45  .4091  .4410 88.20 72.80 67.65 65.20 62.55 60.45
  15/32  .4688    3/ 4  3/         242015 60.95  .4411  .4720 91.75 76.35 71.20 68.70 66.10 63.95
   1/  .5000    7/16 6                 242016 63.30  .4721  .5030 94.80 78.95 73.70 71.20 68.50 66.35
  17/32  .5313    7/16 6                 242017 65.20  .5031  .5340 96.80 80.95 75.70 73.15 70.45 68.30
   9/16  .5625    7/16 6                 242018 65.20  .5341  .5660 96.80 80.95 75.70 73.15 70.45 68.30
  19/32  .5938    7/16 6                 242019 67.15  .5661  .5970 98.70 82.90 77.60 75.05 72.35 70.20
   5/  .6250    9/16 6  1/         242020 67.15  .5971  .6280 98.70 82.90 77.60 75.05 72.35 70.20
  21/32  .6563    9/16 6  1/         242021 69.05  .6281  .6590 100.70 84.85 79.55 77.00 74.25 72.20
  11/16  .6875    9/16 6  1/         242022 73.55  .6591  .6910 105.10 89.25 84.00 81.45 78.75 76.65
  23/32  .7188    9/16 6  1/         242023 74.55  .6911  .7220 106.10 90.30 85.00 82.50 79.75 77.65
   3/  .7500    5/ 6  1/  1/ 242024 75.75  .7221  .7530 107.30 91.50 86.20 83.65 80.95 78.80
  25/32  .7813    5/ 6  1/  1/ 242025 77.65  .7531  .7840 109.30 93.45 88.15 85.60 82.90 80.75
  13/16  .8125    5/ 6  1/  1/ 242026 77.65  .7841  .8160 109.30 93.45 88.15 85.60 82.90 80.75
  27/32  .8438    5/ 6  1/  1/ 242027 81.90  .8161  .8470 113.55 97.70 92.40 89.90 87.15 85.00
   7/  .8750    3/ 6  5/ 10         242028 85.00  .8471  .8780 117.80 101.40 95.80 93.30 90.40 88.20
  29/32  .9063    3/ 6  5/ 10         242029 99.05  .8781  .9090 131.80 115.40 109.90 107.25 104.45 102.25
  15/16  .9375    3/ 8  5/ 10         242030 99.05  .9091  .9410 131.80 115.40 109.90 107.25 104.45 102.25
  31/32  .9688    3/ 8  5/ 10         242031 103.85  .9411  .9720 136.65 120.20 114.75 112.10 109.25 107.10
        1.0000    7/ 8  3/ 10  1/ 242032 103.85  .9721 1.0030 136.65 120.20 114.75 112.10 109.25 107.10
 1/16 1.0625    7/ 8  3/ 10  1/ 242034 111.40 1.0031 1.0660 144.20 127.80 122.30 119.65 116.80 114.65
 1/ 1.1250    7/ 8  7/ 11         242036 114.85 1.0661 1.1280 147.60 131.25 125.70 123.05 120.25 118.10
 3/16 1.1875         8  7/ 11         242038 120.70 1.1281 1.1905 153.45 137.05 131.55 128.90 126.10 123.90
 1/ 1.2500         8         11  1/ 242040 127.75 1.1906 1.2530 160.50 144.05 138.60 135.95 133.15 130.95
 5/16 1.3125         8         11  1/ 242042 141.30 1.2531 1.3155 174.15 157.75 152.15 149.60 146.75 144.55
 3/ 1.3750         8  1/ 12         242044 154.85 1.3156 1.3780 187.65 171.25 165.75 163.15 160.30 158.10
 7/16 1.4375  1/ 8  1/ 12         242046 164.05 1.3781 1.4405 196.85 180.40 174.90 172.35 169.50 167.25
 1/ 1.5000  1/ 8  1/ 12  1/ 242048 173.30 1.4406 1.5030 206.05 189.65 184.20 181.50 178.75 176.55
* 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.