EXPANSION CHUCKING REAMERS — CARBIDE TIPPED

STRAIGHT FLUTE LONG CARBIDE & TAPER SHANK

TYPE 2467 — STRAIGHT FLUTE LONG CARBIDE & TAPER SHANK — FRACTIONAL SIZES

Expansion adjusting screw permits expansion of cutting diameter for regrinding after wear without reinserting carbide.
Taper shank and straight polished flutes.
Flute long carbide tips brazed to one piece hardened tool steel bodies.
Cutting diameter tolerance plus .0003" minus .000".

USE:

Expansion reamers are recommended for reaming abrasive materials and as the diameter wears down, the reamers can be expanded many times by tightening the end adjusting screw and regrinding to its original size. Because this procedure can be repeated several times, the expansion reamer is a very economical tool. Expansion reamers should not be expanded to use at diameters larger than listed diameters nor be considered as adjustable for use in producing holes of several sizes. The expansion screw should never be loosened.

OPTIONS

Intermediate decimal & metric sizes (priced as indicated in extended table below).
Cutting diameter reduced for small steps or pilot.
Radius end or end chamber other than 45ยบ.
End cutting.
Rose grind (twice normal back taper).
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 Expansion Reamers. Please choose the Reamers that meets your tooling needs.
Tool
Diameter
Dimensions Type 2467
EDP NO.
Price Finished To Modified Tool Diameter
Taper 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*
   5/16  .3125 1 4                 246710 $89.40  .2841  .3150 $130.75 $110.00 $103.15 $99.75 $96.35 $93.45
  11/32  .3438 1 4                 246711 89.40  .3151  .3470 130.75 110.00 103.15 99.75 96.35 93.45
   3/  .3750 1 4                 246712 83.85  .3471  .3780 122.60 103.15 96.65 93.60 90.30 87.70
  13/32  .4063 1 4                 246713 86.45  .3781  .4090 125.10 105.70 99.20 96.10 92.75 90.20
   7/16  .4375 1 4                 246714 86.45  .4091  .4410 125.10 105.70 99.20 96.10 92.75 90.20
  15/32  .4688 1 4                 246715 90.65  .4411  .4720 129.40 110.00 103.45 100.40 97.05 94.45
   1/  .5000 1 6                 246716 90.65  .4721  .5030 129.40 110.00 103.45 100.40 97.05 94.45
  17/32  .5313 1 6                 246717 93.40  .5031  .5340 132.15 112.70 106.25 103.15 99.75 97.15
   9/16  .5625 1 6  1/         246718 93.40  .5341  .5660 132.15 112.70 106.25 103.15 99.75 97.15
  19/32  .5938 1 6  1/         246719 97.15  .5661  .5970 135.85 116.55 110.10 106.95 103.75 101.05
   5/  .6250 2 6  1/         246720 97.15  .5971  .6280 135.85 116.55 110.10 106.95 103.75 101.05
  21/32  .6563 2 6  1/         246721 109.40  .6281  .6590 148.10 128.65 122.15 119.10 115.80 113.25
  11/16  .6875 2 6  1/         246722 109.40  .6591  .6910 148.10 128.65 122.15 119.10 115.80 113.25
  23/32  .7188 2 6  1/         246723 109.60  .6911  .7220 148.40 129.05 122.60 119.50 116.05 113.50
   3/  .7500 2 6  3/  1/ 246724 109.60  .7221  .7530 148.40 129.05 122.60 119.50 116.05 113.50
  25/32  .7813 2 6  3/  1/ 246725 117.75  .7531  .7840 156.50 137.05 130.70 127.60 124.20 121.60
  13/16  .8125 2 6  3/  1/ 246726 117.75  .7841  .8160 156.50 137.05 130.70 127.60 124.20 121.60
  27/32  .8438 2 6  3/  1/ 246727 122.75  .8161  .8470 161.40 142.00 135.55 132.40 129.10 126.45
   7/  .8750 2 6  1/ 10         246728 127.45  .8471  .8780 167.45 147.45 140.65 137.50 133.95 131.20
  29/32  .9063 2 6  1/ 10         246729 134.70  .8781  .9090 174.85 154.75 147.95 144.75 141.30 138.65
  15/16  .9375 3 8  1/ 10         246730 134.70  .9091  .9410 174.85 154.75 147.95 144.75 141.30 138.65
  31/32  .9688 3 8  1/ 10         246731 139.60  .9411  .9720 179.65 159.50 152.75 149.60 146.25 143.40
        1.0000 3 8  5/ 10  1/ 246732 139.60  .9721 1.0030 179.65 159.50 152.75 149.60 146.25 143.40
 1/32 1.0313 3 8  5/ 10  1/ 246733 152.65
 1/16 1.0625 3 8  5/ 10  1/ 246734 152.65 1.0031 1.0660 193.00 172.80 166.05 162.85 159.40 156.65
 3/32 1.0938 3 8  3/ 11         246735 152.65
 1/ 1.1250 3 8  3/ 11         246736 152.65 1.0661 1.1280 193.00 172.80 166.05 162.85 159.40 156.65
 3/16 1.1875 3 8  3/ 11         246738 171.75 1.1281 1.1905 211.85 191.75 185.05 181.85 178.45 175.70
 1/ 1.2500 4 8  7/ 11  1/ 246740 174.10 1.1906 1.2530 214.20 194.15 187.45 184.25 180.70 178.05
 5/16 1.3125 4 8  7/ 11  1/ 246742 190.30 1.2531 1.3155 230.40 210.30 203.55 200.40 197.05 194.20
 3/ 1.3750 4 8         12         246744 208.50 1.3156 1.3780 248.50 228.45 221.80 218.55 215.10 212.35
 7/16 1.4375 4 8         12         246746 234.00 1.3781 1.4405 276.80 255.35 248.20 244.75 241.05 238.20
 1/ 1.5000 4 8  1/ 12  1/ 246748 242.30 1.4406 1.5030 285.15 263.65 256.40 253.10 249.35 246.45
 9/16 1.5625 4 8  1/ 12  1/ 246750 332.90 1.5031 1.5660 375.80 354.30 347.15 343.75 340.00 337.10
 5/ 1.6250 4 8  1/ 13         246752 332.90 1.5661 1.6280 375.80 354.30 347.15 343.75 340.00 337.10
11/16 1.6875 4 8  1/ 13         246754 368.70 1.6281 1.6910 411.60 390.15 382.90 379.45 375.85 372.90
 3/ 1.7500 4 10  3/ 13  1/ 246756 368.70 1.6911 1.7530 411.60 390.15 382.90 379.45 375.85 372.90
13/16 1.8125 4 10  3/ 13  1/ 246758 436.55 1.7531 1.8160 479.40 458.05 450.85 447.40 443.65 440.80
 7/ 1.8750 4 10  1/ 14         246760 436.55 1.8161 1.8780 479.40 458.05 450.85 447.40 443.65 440.80
15/16 1.9375 4 10  1/ 14         246762 477.15 1.8781 1.9410 519.85 498.40 491.20 487.85 484.10 481.35
        2.0000 4 12  1/ 14         246764 477.15 1.9411 2.0030 519.85 498.40 491.20 487.85 484.10 481.35
 1/ 2.1250 5 12  3/ 14  1/ 246768 714.30 2.0031 2.1280 757.10 735.70 728.45 725.05 721.45 718.45
 1/ 2.2500 5 12  3/ 14  1/ 246772 767.05 2.1281 2.2530 809.95 788.45 781.35 777.80 774.20 771.35
 3/ 2.3750 5 12         15         246776 793.75 2.2531 2.3780 836.50 815.20 807.90 804.60 800.85 798.00
 1/ 2.5000 5 12         15         246780 793.75 2.3781 2.5030 836.50 815.20 807.90 804.60 800.85 798.00
* Quantities of 15 or more - price of fractional size in same size range
Don't see the Expansion Reamers you need?
If the above dimensions do not meet your specific Expansion Reamers needs we may be able to make modifications to one of the above Expansion 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 Expansion Reamers you requested.
Thank you for using Rock River Tool for your Expansion Reamers needs.