COUNTERBORES — CARBIDE TIPPED

FOUR FLUTES — TAPER SHANK

TYPE 2518 — FOUR FLUTES — TAPER SHANK

For machining cast iron, non ferrous materials, composites, plastics and non-metals.
Carbide tips brazed to hardened alloy steel bodies.
Right spiral polished flutes.
Cutting diameter tolerance — plus .001", minus .000".
Shank diameter tolerance — plus .0000", minus .0005".

OPTIONS

Intermediate decimal or metric diameters.
Chamfers or radius end.
Cutting diameter ground down for small step.


Below are the critical dimensions of our Four Flutes - Taper Shank Counterbores. Please choose the Counterbores that meets your tooling needs.
Tool
Diameter		 Dimensions Type 2518
EDP NO.		 Price Finished To Modified Tool Diameter
Diameter Taper No. of Flutes Overall Length Modified Diameter Range Price Each - Based on Quantity Ordered
Frac. Dec. Min. Cut Pilot Hole Low High 1 2 3 4 5-7 8-14*
   1/2   .5000  .2280  .1875 1 4 4  5/16 251816 $82.55  .4721  .5030 $111.25 $96.90 $92.10 $89.80 $87.35 $85.40
  17/32  .5313  .2280  .1875 1 4 4  5/16 251817 92.50  .5031  .5340 121.10 106.80 102.05 99.65 97.25 95.30
   9/16  .5625  .2280  .1875 1 4 4  5/16 251818 84.10  .5341  .5660 112.75 98.40 93.65 91.25 88.90 86.90
  19/32  .5938  .2280  .1875 2 4 5  1/8  251819 95.00  .5661  .5970 123.65 109.35 104.55 102.20 99.80 97.80
   5/8   .6250  .2280  .1875 2 4 5  1/8  251820 86.35  .5971  .6280 115.00 100.70 95.90 93.55 91.10 89.15
  21/32  .6563  .2280  .1875 2 4 5  1/8  251821 100.30  .6281  .6590 128.95 114.60 109.80 107.50 105.05 103.10
  11/16  .6875  .2280  .1875 2 4 5  1/8  251822 91.10  .6591  .6910 119.80 105.45 100.70 98.30 95.90 93.90
  23/32  .7188  .2900  .2500 2 4 5  3/8  251823 101.95  .6911  .7220 130.60 116.30 111.50 109.20 106.75 104.80
   3/4   .7500  .2900  .2500 2 4 5  3/8  251824 92.65  .7221  .7530 121.30 106.95 102.20 99.85 97.40 95.45
  25/32  .7813  .2900  .2500 2 4 5  3/8  251825 103.65  .7531  .7840 132.30 118.00 113.20 110.80 108.45 106.50
  13/16  .8125  .2900  .2500 2 4 5  3/8  251826 94.30  .7841  .8160 122.90 108.60 103.85 101.45 99.05 97.10
  27/32  .8438  .2900  .2500 2 4 5  3/8  251827 109.00  .8161  .8470 137.70 123.40 118.60 116.25 113.85 111.85
   7/8   .8750  .2900  .2500 2 4 5  3/8  251828 99.10  .8471  .8780 127.75 113.40 108.65 106.30 103.90 101.90
  29/32  .9063  .2900  .2500 3 4 6  1/8  251829 112.00  .8781  .9090 140.60 126.30 121.55 119.15 116.75 114.80
  15/16  .9375  .2900  .2500 3 4 6  1/8  251830 101.80  .9091  .9410 130.45 116.10 111.35 108.95 106.60 104.60
  31/32  .9688  .3530  .3125 3 4 6  3/8  251831 114.55  .9411  .9720 143.20 128.90 124.15 121.75 119.30 117.35
1         1.0000  .3530  .3125 3 4 6  3/8  251832 108.10  .9721 1.0030 137.85 123.00 118.00 115.55 113.05 111.00
1  1/16 1.0625  .3530  .3125 3 4 6  3/8  251834 109.50 1.0031 1.0660 139.20 124.35 119.40 116.95 114.45 112.40
1  1/8  1.1250  .3530  .3125 3 4 6  3/8  251836 112.95 1.0661 1.1280 142.75 127.90 122.85 120.45 117.90 115.90
1  3/16 1.1875  .3530  .3125 3 4 6  3/8  251838 116.80 1.1281 1.1905 146.60 131.75 126.70 124.30 121.75 119.75
* Quantities of 15 or more - price of fractional size in same size range
Don't see the Four Flutes - Taper Shank Counterbores you need?
If the above dimensions do not meet your specific Four Flutes - Taper Shank Counterbores needs we may be able to make modifications to one of the above Four Flutes - Taper Shank Counterbores 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 Four Flutes - Taper Shank Counterbores you requested.
Thank you for using Rock River Tool for your Four Flutes - Taper Shank Counterbores needs.