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 $112.80  .4721  .5030 $152.00 $132.35 $125.75 $122.70 $119.25 $116.60
  17/32  .5313  .2280  .1875 1 4 4  5/16 251817 126.30  .5031  .5340 165.40 145.85 139.30 136.10 132.80 130.15
   9/16  .5625  .2280  .1875 1 4 4  5/16 251818 114.85  .5341  .5660 154.00 134.40 127.95 124.65 121.45 118.75
  19/32  .5938  .2280  .1875 2 4 5  1/8  251819 129.75  .5661  .5970 168.95 149.35 142.85 139.60 136.35 133.60
   5/8   .6250  .2280  .1875 2 4 5  1/8  251820 117.95  .5971  .6280 157.00 137.55 130.95 127.85 124.40 121.75
  21/32  .6563  .2280  .1875 2 4 5  1/8  251821 137.00  .6281  .6590 176.15 156.60 150.00 146.90 143.50 140.85
  11/16  .6875  .2280  .1875 2 4 5  1/8  251822 124.40  .6591  .6910 163.65 144.00 137.55 134.25 130.95 128.30
  23/32  .7188  .2900  .2500 2 4 5  3/8  251823 139.25  .6911  .7220 178.40 158.85 152.30 149.15 145.80 143.15
   3/4   .7500  .2900  .2500 2 4 5  3/8  251824 126.60  .7221  .7530 165.65 146.15 139.60 136.45 133.05 130.30
  25/32  .7813  .2900  .2500 2 4 5  3/8  251825 141.65  .7531  .7840 180.70 161.20 154.60 151.40 148.10 145.45
  13/16  .8125  .2900  .2500 2 4 5  3/8  251826 128.75  .7841  .8160 167.85 148.35 141.85 138.50 135.30 132.60
  27/32  .8438  .2900  .2500 2 4 5  3/8  251827 148.85  .8161  .8470 188.05 168.50 162.00 158.80 155.50 152.80
   7/8   .8750  .2900  .2500 2 4 5  3/8  251828 135.35  .8471  .8780 174.50 154.90 148.45 145.15 141.90 139.15
  29/32  .9063  .2900  .2500 3 4 6  1/8  251829 152.95  .8781  .9090 192.05 172.45 166.05 162.70 159.50 156.80
  15/16  .9375  .2900  .2500 3 4 6  1/8  251830 139.05  .9091  .9410 178.15 158.60 152.10 148.80 145.65 142.90
  31/32  .9688  .3530  .3125 3 4 6  3/8  251831 156.55  .9411  .9720 195.60 176.10 169.55 166.35 162.95 160.25
1         1.0000  .3530  .3125 3 4 6  3/8  251832 147.65  .9721 1.0030 188.30 167.95 161.20 157.90 154.35 151.60
1  1/16 1.0625  .3530  .3125 3 4 6  3/8  251834 149.60 1.0031 1.0660 190.10 169.85 163.10 159.75 156.25 153.50
1  1/8  1.1250  .3530  .3125 3 4 6  3/8  251836 154.30 1.0661 1.1280 194.95 174.70 167.80 164.50 161.05 158.30
1  3/16 1.1875  .3530  .3125 3 4 6  3/8  251838 159.55 1.1281 1.1905 200.30 179.90 173.05 169.80 166.35 163.55
* 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.