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 $103.00  .4721  .5030 $138.80 $120.85 $114.85 $112.05 $108.90 $106.50
  17/32  .5313  .2280  .1875 1 4 4  5/16 251817 115.35  .5031  .5340 151.05 133.20 127.20 124.30 121.30 118.85
   9/16  .5625  .2280  .1875 1 4 4  5/16 251818 104.90  .5341  .5660 140.65 122.75 116.85 113.85 110.90 108.45
  19/32  .5938  .2280  .1875 2 4 5  1/8  251819 118.50  .5661  .5970 154.30 136.40 130.45 127.50 124.50 122.00
   5/8   .6250  .2280  .1875 2 4 5  1/8  251820 107.70  .5971  .6280 143.40 125.60 119.60 116.75 113.60 111.20
  21/32  .6563  .2280  .1875 2 4 5  1/8  251821 125.10  .6281  .6590 160.85 143.00 137.00 134.15 131.05 128.65
  11/16  .6875  .2280  .1875 2 4 5  1/8  251822 113.60  .6591  .6910 149.45 131.50 125.60 122.60 119.60 117.15
  23/32  .7188  .2900  .2500 2 4 5  3/8  251823 127.15  .6911  .7220 162.90 145.05 139.10 136.20 133.15 130.75
   3/4   .7500  .2900  .2500 2 4 5  3/8  251824 115.60  .7221  .7530 151.30 133.45 127.50 124.60 121.50 119.00
  25/32  .7813  .2900  .2500 2 4 5  3/8  251825 129.35  .7531  .7840 165.00 147.20 141.20 138.25 135.25 132.85
  13/16  .8125  .2900  .2500 2 4 5  3/8  251826 117.60  .7841  .8160 153.30 135.50 129.55 126.50 123.55 121.10
  27/32  .8438  .2900  .2500 2 4 5  3/8  251827 135.95  .8161  .8470 171.75 153.90 147.95 145.00 142.00 139.55
   7/8   .8750  .2900  .2500 2 4 5  3/8  251828 123.60  .8471  .8780 159.35 141.45 135.55 132.55 129.60 127.10
  29/32  .9063  .2900  .2500 3 4 6  1/8  251829 139.70  .8781  .9090 175.40 157.50 151.65 148.60 145.65 143.20
  15/16  .9375  .2900  .2500 3 4 6  1/8  251830 127.00  .9091  .9410 162.70 144.85 138.90 135.90 133.00 130.50
  31/32  .9688  .3530  .3125 3 4 6  3/8  251831 142.95  .9411  .9720 178.65 160.80 154.85 151.90 148.80 146.35
1         1.0000  .3530  .3125 3 4 6  3/8  251832 134.85  .9721 1.0030 171.95 153.40 147.20 144.20 140.95 138.45
1  1/16 1.0625  .3530  .3125 3 4 6  3/8  251834 136.60 1.0031 1.0660 173.60 155.10 148.95 145.90 142.70 140.20
1  1/8  1.1250  .3530  .3125 3 4 6  3/8  251836 140.90 1.0661 1.1280 178.05 159.55 153.25 150.25 147.10 144.55
1  3/16 1.1875  .3530  .3125 3 4 6  3/8  251838 145.70 1.1281 1.1905 182.90 164.30 158.05 155.05 151.90 149.35
* 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.