COUNTERBORES — CARBIDE TIPPED

FOUR FLUTES — STRAIGHT SHANK

TYPE 2512 — FOUR FLUTES — STRAIGHT SHANK

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

OPTIONS

Intermediate decimal or metric diameters.
Short shank or undersize diameter or flat on shank. Chamfers or radius end.
Cutting diameter ground down for small step.
Tanged shanks.


Below are the critical dimensions of our Four Flutes - Straight Shank Counterbores. Please choose the Counterbores that meets your tooling needs.
Tool
Diameter
Dimensions Type 2512
EDP NO.
Price Finished To Modified Tool Diameter
Diameter No. of Flutes Overall Length Modified Diameter Range Price Each - Based on Quantity Ordered
Frac. Dec. Min. Cut Pilot Hole Shank Low High 1 2 3 4 5-7 8-14*
   1/  .5000  .2280  .1875    7/16 4  5/16 251216 $77.65  .4721  .5030 $107.75 $92.65 $87.70 $85.20 $82.65 $80.60
  17/32  .5313  .2280  .1875    1/ 4  5/16 251217 87.90  .5031  .5340 117.95 102.95 97.95 95.45 92.90 90.80
   9/16  .5625  .2280  .1875    1/ 4  5/16 251218 79.90  .5341  .5660 110.05 94.95 89.95 87.45 84.95 82.85
  19/32  .5938  .2280  .1875    1/ 4  1/ 251219 88.80  .5661  .5970 118.85 103.85 98.85 96.35 93.75 91.70
   5/  .6250  .2280  .1875    1/ 4  1/ 251220 80.70  .5971  .6280 110.80 95.70 90.70 88.25 85.70 83.65
  21/32  .6563  .2280  .1875    1/ 4  1/ 251221 94.00  .6281  .6590 124.05 109.05 104.00 101.50 99.00 96.95
  11/16  .6875  .2280  .1875    1/ 4  1/ 251222 85.45  .6591  .6910 115.60 100.50 95.50 93.05 90.50 88.40
  23/32  .7188  .2900  .2500    1/ 4  3/ 251223 96.25  .6911  .7220 126.25 111.25 106.25 103.80 101.20 99.15
   3/  .7500  .2900  .2500    1/ 4  3/ 251224 87.40  .7221  .7530 117.55 102.45 97.45 94.95 92.45 90.35
  25/32  .7813  .2900  .2500    5/ 4  3/ 251225 98.25  .7531  .7840 128.30 113.25 108.25 105.80 103.20 101.15
  13/16  .8125  .2900  .2500    5/ 4  3/ 251226 89.25  .7841  .8160 119.35 104.25 99.30 96.75 94.30 92.20
  27/32  .8438  .2900  .2500    3/ 4  3/ 251227 104.05  .8161  .8470 134.15 119.05 114.10 111.60 109.10 107.00
   7/  .8750  .2900  .2500    3/ 4  3/ 251228 94.60  .8471  .8780 124.70 109.65 104.65 102.15 99.60 97.55
  29/32  .9063  .2900  .2500    3/ 4  1/ 251229 106.15  .8781  .9090 136.30 121.20 116.20 113.75 111.20 109.15
  15/16  .9375  .2900  .2500    3/ 4  1/ 251230 96.55  .9091  .9410 126.70 111.60 106.60 104.10 101.55 99.50
  31/32  .9688  .3530  .3125    3/ 4  3/ 251231 109.25  .9411  .9720 139.35 124.25 119.30 116.80 114.25 112.20
        1.0000  .3530  .3125    3/ 4  3/ 251232 99.35  .9721 1.0030 129.45 114.35 109.35 106.90 104.35 102.25
 1/16 1.0625  .3530  .3125    3/ 4  3/ 251234 100.40 1.0031 1.0660 130.50 115.40 110.40 107.95 105.40 103.30
 1/ 1.1250  .3530  .3125         4  3/ 251236 102.95 1.0661 1.1280 133.00 117.95 113.00 110.45 107.95 105.90
 3/16 1.1875  .3530  .3125         4  3/ 251238 107.50 1.1281 1.1905 137.60 122.60 117.60 115.10 112.50 110.45
* Quantities of 15 or more - price of fractional size in same size range
Don't see the Four Flutes - Straight Shank Counterbores you need?
If the above dimensions do not meet your specific Four Flutes - Straight Shank Counterbores needs we may be able to make modifications to one of the above Four Flutes - Straight 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 - Straight Shank Counterbores you requested.
Thank you for using Rock River Tool for your Four Flutes - Straight Shank Counterbores needs.