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 $75.60  .2841  .3150 $110.55 $93.00 $87.20 $84.35 $81.45 $79.05
  11/32  .3438 1 4                 246711 75.60  .3151  .3470 110.55 93.00 87.20 84.35 81.45 79.05
   3/  .3750 1 4                 246712 70.90  .3471  .3780 103.65 87.20 81.75 79.15 76.35 74.15
  13/32  .4063 1 4                 246713 73.10  .3781  .4090 105.80 89.35 83.90 81.30 78.45 76.25
   7/16  .4375 1 4                 246714 73.10  .4091  .4410 105.80 89.35 83.90 81.30 78.45 76.25
  15/32  .4688 1 4                 246715 76.65  .4411  .4720 109.40 93.00 87.50 84.90 82.05 79.85
   1/  .5000 1 6                 246716 76.65  .4721  .5030 109.40 93.00 87.50 84.90 82.05 79.85
  17/32  .5313 1 6                 246717 79.00  .5031  .5340 111.75 95.30 89.85 87.20 84.35 82.15
   9/16  .5625 1 6  1/         246718 79.00  .5341  .5660 111.75 95.30 89.85 87.20 84.35 82.15
  19/32  .5938 1 6  1/         246719 82.15  .5661  .5970 114.90 98.55 93.10 90.45 87.70 85.45
   5/  .6250 2 6  1/         246720 82.15  .5971  .6280 114.90 98.55 93.10 90.45 87.70 85.45
  21/32  .6563 2 6  1/         246721 92.50  .6281  .6590 125.25 108.75 103.30 100.75 97.90 95.75
  11/16  .6875 2 6  1/         246722 92.50  .6591  .6910 125.25 108.75 103.30 100.75 97.90 95.75
  23/32  .7188 2 6  1/         246723 92.70  .6911  .7220 125.50 109.15 103.65 101.05 98.15 96.00
   3/  .7500 2 6  3/  1/ 246724 92.70  .7221  .7530 125.50 109.15 103.65 101.05 98.15 96.00
  25/32  .7813 2 6  3/  1/ 246725 99.60  .7531  .7840 132.35 115.90 110.50 107.90 105.00 102.85
  13/16  .8125 2 6  3/  1/ 246726 99.60  .7841  .8160 132.35 115.90 110.50 107.90 105.00 102.85
  27/32  .8438 2 6  3/  1/ 246727 103.80  .8161  .8470 136.50 120.10 114.60 111.95 109.20 106.95
   7/  .8750 2 6  1/ 10         246728 107.75  .8471  .8780 141.60 124.70 118.95 116.25 113.30 110.95
  29/32  .9063 2 6  1/ 10         246729 113.90  .8781  .9090 147.85 130.85 125.10 122.40 119.50 117.25
  15/16  .9375 3 8  1/ 10         246730 113.90  .9091  .9410 147.85 130.85 125.10 122.40 119.50 117.25
  31/32  .9688 3 8  1/ 10         246731 118.05  .9411  .9720 151.90 134.90 129.20 126.50 123.65 121.30
        1.0000 3 8  5/ 10  1/ 246732 118.05  .9721 1.0030 151.90 134.90 129.20 126.50 123.65 121.30
 1/32 1.0313 3 8  5/ 10  1/ 246733 129.10
 1/16 1.0625 3 8  5/ 10  1/ 246734 129.10 1.0031 1.0660 163.20 146.10 140.40 137.70 134.80 132.45
 3/32 1.0938 3 8  3/ 11         246735 129.10
 1/ 1.1250 3 8  3/ 11         246736 129.10 1.0661 1.1280 163.20 146.10 140.40 137.70 134.80 132.45
 3/16 1.1875 3 8  3/ 11         246738 145.25 1.1281 1.1905 179.15 162.15 156.50 153.80 150.90 148.60
 1/ 1.2500 4 8  7/ 11  1/ 246740 147.20 1.1906 1.2530 181.15 164.15 158.50 155.80 152.80 150.55
 5/16 1.3125 4 8  7/ 11  1/ 246742 160.90 1.2531 1.3155 194.85 177.80 172.10 169.45 166.60 164.20
 3/ 1.3750 4 8         12         246744 176.30 1.3156 1.3780 210.15 193.20 187.55 184.80 181.85 179.55
 7/16 1.4375 4 8         12         246746 197.85 1.3781 1.4405 234.05 215.95 209.85 206.95 203.85 201.40
 1/ 1.5000 4 8  1/ 12  1/ 246748 204.90 1.4406 1.5030 241.15 222.90 216.80 214.00 210.85 208.40
 9/16 1.5625 4 8  1/ 12  1/ 246750 281.50 1.5031 1.5660 317.75 299.60 293.55 290.70 287.50 285.05
 5/ 1.6250 4 8  1/ 13         246752 281.50 1.5661 1.6280 317.75 299.60 293.55 290.70 287.50 285.05
11/16 1.6875 4 8  1/ 13         246754 311.80 1.6281 1.6910 348.05 329.90 323.80 320.85 317.80 315.35
 3/ 1.7500 4 10  3/ 13  1/ 246756 311.80 1.6911 1.7530 348.05 329.90 323.80 320.85 317.80 315.35
13/16 1.8125 4 10  3/ 13  1/ 246758 369.15 1.7531 1.8160 405.40 387.30 381.25 378.30 375.15 372.75
 7/ 1.8750 4 10  1/ 14         246760 369.15 1.8161 1.8780 405.40 387.30 381.25 378.30 375.15 372.75
15/16 1.9375 4 10  1/ 14         246762 403.45 1.8781 1.9410 439.60 421.45 415.35 412.50 409.35 407.05
        2.0000 4 12  1/ 14         246764 403.45 1.9411 2.0030 439.60 421.45 415.35 412.50 409.35 407.05
 1/ 2.1250 5 12  3/ 14  1/ 246768 604.00 2.0031 2.1280 640.20 622.10 616.00 613.10 610.05 607.55
 1/ 2.2500 5 12  3/ 14  1/ 246772 648.65 2.1281 2.2530 684.90 666.70 660.70 657.70 654.65 652.25
 3/ 2.3750 5 12         15         246776 671.20 2.2531 2.3780 707.35 689.30 683.15 680.35 677.20 674.80
 1/ 2.5000 5 12         15         246780 671.20 2.3781 2.5030 707.35 689.30 683.15 680.35 677.20 674.80
* 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.