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 $56.10  .1770  .2040 $92.55 $74.25 $68.15 $65.20 $62.10 $59.70
   7/32  .2188   13/64 4 1  1/4  5         242007 56.10  .2041  .2210 92.55 74.25 68.15 65.20 62.10 59.70
  15/64  .2344    7/32 4 1  1/2  6         24202344 56.10  .2211  .2380 92.55 74.25 68.15 65.20 62.10 59.70
   1/4   .2500   15/64 4 1  1/2  6         242008 56.10  .2381  .2530 92.55 74.25 68.15 65.20 62.10 59.70
   9/32  .2813   15/64 4 1  1/2  6         242009 56.30  .2531  .2840 92.65 74.40 68.25 65.35 62.25 59.80
   5/16  .3125    9/32 4 1  1/2  6         242010 56.30  .2841  .3150 92.65 74.40 68.25 65.35 62.25 59.80
  11/32  .3438    9/32 4 1  1/2  6         242011 61.90  .3151  .3470 98.35 80.05 73.95 71.05 67.95 65.55
   3/8   .3750    5/16 4 1  3/4  7         242012 62.50  .3471  .3780 98.90 80.65 74.50 71.70 68.60 66.10
  13/32  .4063    5/16 4 1  3/4  7         242013 65.30  .3781  .4090 101.75 83.50 77.40 74.45 71.30 68.90
   7/16  .4375    3/8  4 1  3/4  7         242014 67.95  .4091  .4410 104.30 86.05 80.00 77.10 73.95 71.50
  15/32  .4688    3/8  4 1  3/4  7         242015 72.10  .4411  .4720 108.50 90.30 84.20 81.25 78.20 75.60
   1/2   .5000    7/16 6 2         8         242016 74.85  .4721  .5030 112.15 93.35 87.15 84.20 81.05 78.45
  17/32  .5313    7/16 6 2         8         242017 77.10  .5031  .5340 114.50 95.75 89.50 86.50 83.35 80.75
   9/16  .5625    7/16 6 2         8         242018 77.10  .5341  .5660 114.50 95.75 89.50 86.50 83.35 80.75
  19/32  .5938    7/16 6 2         8         242019 79.40  .5661  .5970 116.75 98.05 91.75 88.75 85.55 83.00
   5/8   .6250    9/16 6 2  1/4  9         242020 79.40  .5971  .6280 116.75 98.05 91.75 88.75 85.55 83.00
  21/32  .6563    9/16 6 2  1/4  9         242021 81.65  .6281  .6590 119.10 100.35 94.05 91.05 87.80 85.40
  11/16  .6875    9/16 6 2  1/4  9         242022 87.00  .6591  .6910 124.30 105.55 99.30 96.30 93.15 90.65
  23/32  .7188    9/16 6 2  1/4  9         242023 88.15  .6911  .7220 125.50 106.75 100.50 97.55 94.35 91.80
   3/4   .7500    5/8  6 2  1/2  9  1/2  242024 89.55  .7221  .7530 126.90 108.20 101.95 98.95 95.75 93.20
  25/32  .7813    5/8  6 2  1/2  9  1/2  242025 91.80  .7531  .7840 129.25 110.55 104.25 101.25 98.05 95.50
  13/16  .8125    5/8  6 2  1/2  9  1/2  242026 91.80  .7841  .8160 129.25 110.55 104.25 101.25 98.05 95.50
  27/32  .8438    5/8  6 2  1/2  9  1/2  242027 96.85  .8161  .8470 134.30 115.50 109.30 106.30 103.05 100.50
   7/8   .8750    3/4  6 2  5/8  10         242028 100.50  .8471  .8780 139.30 119.90 113.30 110.30 106.95 104.30
  29/32  .9063    3/4  6 2  5/8  10         242029 117.10  .8781  .9090 155.85 136.50 130.00 126.85 123.50 120.95
  15/16  .9375    3/4  8 2  5/8  10         242030 117.10  .9091  .9410 155.85 136.50 130.00 126.85 123.50 120.95
  31/32  .9688    3/4  8 2  5/8  10         242031 122.80  .9411  .9720 161.60 142.15 135.75 132.55 129.20 126.65
1         1.0000    7/8  8 2  3/4  10  1/2  242032 122.80  .9721 1.0030 161.60 142.15 135.75 132.55 129.20 126.65
1  1/16 1.0625    7/8  8 2  3/4  10  1/2  242034 131.75 1.0031 1.0660 170.55 151.10 144.65 141.45 138.15 135.55
1  1/8  1.1250    7/8  8 2  7/8  11         242036 135.85 1.0661 1.1280 174.55 155.20 148.65 145.55 142.20 139.65
1  3/16 1.1875 1         8 2  7/8  11         242038 142.75 1.1281 1.1905 181.50 162.05 155.55 152.40 149.15 146.50
1  1/4  1.2500 1         8 3         11  1/2  242040 151.05 1.1906 1.2530 189.80 170.35 163.90 160.80 157.45 154.90
1  5/16 1.3125 1         8 3         11  1/2  242042 167.10 1.2531 1.3155 205.95 186.55 179.90 176.90 173.55 170.95
1  3/8  1.3750 1         8 3  1/4  12         242044 183.15 1.3156 1.3780 221.90 202.50 196.00 192.95 189.55 186.95
1  7/16 1.4375 1  1/4  8 3  1/4  12         242046 194.00 1.3781 1.4405 232.80 213.35 206.85 203.85 200.45 197.80
1  1/2  1.5000 1  1/4  8 3  1/2  12  1/2  242048 204.95 1.4406 1.5030 243.70 224.25 217.85 214.60 211.40 208.75
* 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.