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  1/8  4  1/2  242006 $60.60  .1770  .2040 $99.95 $80.20 $73.60 $70.40 $67.05 $64.50
   7/32  .2188   13/64 4 1  1/4  5         242007 60.60  .2041  .2210 99.95 80.20 73.60 70.40 67.05 64.50
  15/64  .2344    7/32 4 1  1/2  6         24202344 60.60  .2211  .2380 99.95 80.20 73.60 70.40 67.05 64.50
   1/4   .2500   15/64 4 1  1/2  6         242008 60.60  .2381  .2530 99.95 80.20 73.60 70.40 67.05 64.50
   9/32  .2813   15/64 4 1  1/2  6         242009 60.80  .2531  .2840 100.05 80.35 73.70 70.60 67.25 64.60
   5/16  .3125    9/32 4 1  1/2  6         242010 60.80  .2841  .3150 100.05 80.35 73.70 70.60 67.25 64.60
  11/32  .3438    9/32 4 1  1/2  6         242011 66.85  .3151  .3470 106.20 86.45 79.85 76.75 73.40 70.80
   3/8   .3750    5/16 4 1  3/4  7         242012 67.50  .3471  .3780 106.80 87.10 80.45 77.45 74.10 71.40
  13/32  .4063    5/16 4 1  3/4  7         242013 70.50  .3781  .4090 109.90 90.20 83.60 80.40 77.00 74.40
   7/16  .4375    3/8  4 1  3/4  7         242014 73.40  .4091  .4410 112.65 92.95 86.40 83.25 79.85 77.20
  15/32  .4688    3/8  4 1  3/4  7         242015 77.85  .4411  .4720 117.20 97.50 90.95 87.75 84.45 81.65
   1/2   .5000    7/16 6 2         8         242016 80.85  .4721  .5030 121.10 100.80 94.10 90.95 87.55 84.75
  17/32  .5313    7/16 6 2         8         242017 83.25  .5031  .5340 123.65 103.40 96.65 93.40 90.00 87.20
   9/16  .5625    7/16 6 2         8         242018 83.25  .5341  .5660 123.65 103.40 96.65 93.40 90.00 87.20
  19/32  .5938    7/16 6 2         8         242019 85.75  .5661  .5970 126.10 105.90 99.10 95.85 92.40 89.65
   5/8   .6250    9/16 6 2  1/4  9         242020 85.75  .5971  .6280 126.10 105.90 99.10 95.85 92.40 89.65
  21/32  .6563    9/16 6 2  1/4  9         242021 88.20  .6281  .6590 128.65 108.40 101.55 98.35 94.80 92.25
  11/16  .6875    9/16 6 2  1/4  9         242022 93.95  .6591  .6910 134.25 114.00 107.25 104.00 100.60 97.90
  23/32  .7188    9/16 6 2  1/4  9         242023 95.20  .6911  .7220 135.55 115.30 108.55 105.35 101.90 99.15
   3/4   .7500    5/8  6 2  1/2  9  1/2  242024 96.70  .7221  .7530 137.05 116.85 110.10 106.85 103.40 100.65
  25/32  .7813    5/8  6 2  1/2  9  1/2  242025 99.15  .7531  .7840 139.60 119.40 112.60 109.35 105.90 103.15
  13/16  .8125    5/8  6 2  1/2  9  1/2  242026 99.15  .7841  .8160 139.60 119.40 112.60 109.35 105.90 103.15
  27/32  .8438    5/8  6 2  1/2  9  1/2  242027 104.60  .8161  .8470 145.05 124.75 118.05 114.80 111.30 108.55
   7/8   .8750    3/4  6 2  5/8  10         242028 108.55  .8471  .8780 150.45 129.50 122.35 119.10 115.50 112.65
  29/32  .9063    3/4  6 2  5/8  10         242029 126.45  .8781  .9090 168.30 147.40 140.40 137.00 133.40 130.65
  15/16  .9375    3/4  8 2  5/8  10         242030 126.45  .9091  .9410 168.30 147.40 140.40 137.00 133.40 130.65
  31/32  .9688    3/4  8 2  5/8  10         242031 132.60  .9411  .9720 174.55 153.50 146.60 143.15 139.55 136.80
1         1.0000    7/8  8 2  3/4  10  1/2  242032 132.60  .9721 1.0030 174.55 153.50 146.60 143.15 139.55 136.80
1  1/16 1.0625    7/8  8 2  3/4  10  1/2  242034 142.30 1.0031 1.0660 184.20 163.20 156.20 152.75 149.20 146.40
1  1/8  1.1250    7/8  8 2  7/8  11         242036 146.70 1.0661 1.1280 188.50 167.60 160.55 157.20 153.60 150.80
1  3/16 1.1875 1         8 2  7/8  11         242038 154.15 1.1281 1.1905 196.00 175.00 168.00 164.60 161.10 158.20
1  1/4  1.2500 1         8 3         11  1/2  242040 163.15 1.1906 1.2530 205.00 184.00 177.00 173.65 170.05 167.30
1  5/16 1.3125 1         8 3         11  1/2  242042 180.45 1.2531 1.3155 222.45 201.45 194.30 191.05 187.45 184.65
1  3/8  1.3750 1         8 3  1/4  12         242044 197.80 1.3156 1.3780 239.65 218.70 211.70 208.40 204.70 201.90
1  7/16 1.4375 1  1/4  8 3  1/4  12         242046 209.50 1.3781 1.4405 251.40 230.40 223.40 220.15 216.50 213.60
1  1/2  1.5000 1  1/4  8 3  1/2  12  1/2  242048 221.35 1.4406 1.5030 263.20 242.20 235.30 231.75 228.30 225.45
* 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.