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*
   1/2   .5000  .2280  .1875    7/16 4 4  5/16 251216 $97.35  .4721  .5030 $135.05 $116.10 $109.95 $106.75 $103.60 $101.05
  17/32  .5313  .2280  .1875    1/2  4 4  5/16 251217 110.15  .5031  .5340 147.90 129.10 122.80 119.70 116.45 113.85
   9/16  .5625  .2280  .1875    1/2  4 4  5/16 251218 100.20  .5341  .5660 137.95 119.05 112.80 109.60 106.50 103.80
  19/32  .5938  .2280  .1875    1/2  4 5  1/8  251219 111.35  .5661  .5970 149.05 130.20 123.95 120.80 117.55 115.00
   5/8   .6250  .2280  .1875    1/2  4 5  1/8  251220 101.20  .5971  .6280 138.90 119.95 113.70 110.65 107.40 104.85
  21/32  .6563  .2280  .1875    1/2  4 5  1/8  251221 117.80  .6281  .6590 155.50 136.70 130.35 127.25 124.10 121.50
  11/16  .6875  .2280  .1875    1/2  4 5  1/8  251222 107.15  .6591  .6910 144.90 126.00 119.75 116.65 113.50 110.80
  23/32  .7188  .2900  .2500    1/2  4 5  3/8  251223 120.60  .6911  .7220 158.25 139.45 133.15 130.15 126.85 124.30
   3/4   .7500  .2900  .2500    1/2  4 5  3/8  251224 109.55  .7221  .7530 147.35 128.45 122.15 119.05 115.90 113.20
  25/32  .7813  .2900  .2500    5/8  4 5  3/8  251225 123.20  .7531  .7840 160.85 141.95 135.75 132.60 129.35 126.80
  13/16  .8125  .2900  .2500    5/8  4 5  3/8  251226 111.85  .7841  .8160 149.60 130.70 124.45 121.25 118.20 115.60
  27/32  .8438  .2900  .2500    3/4  4 5  3/8  251227 130.40  .8161  .8470 168.20 149.25 143.05 139.90 136.75 134.10
   7/8   .8750  .2900  .2500    3/4  4 5  3/8  251228 118.60  .8471  .8780 156.35 137.50 131.25 128.05 124.90 122.25
  29/32  .9063  .2900  .2500    3/4  4 6  1/8  251229 133.05  .8781  .9090 170.85 151.95 145.65 142.60 139.40 136.80
  15/16  .9375  .2900  .2500    3/4  4 6  1/8  251230 121.05  .9091  .9410 158.85 139.90 133.65 130.50 127.30 124.70
  31/32  .9688  .3530  .3125    3/4  4 6  3/8  251231 136.95  .9411  .9720 174.65 155.75 149.50 146.40 143.25 140.65
1         1.0000  .3530  .3125    3/4  4 6  3/8  251232 124.50  .9721 1.0030 162.30 143.35 137.05 133.95 130.80 128.15
1  1/16 1.0625  .3530  .3125    3/4  4 6  3/8  251234 125.80 1.0031 1.0660 163.60 144.65 138.35 135.35 132.10 129.50
1  1/8  1.1250  .3530  .3125 1         4 6  3/8  251236 129.10 1.0661 1.1280 166.75 147.90 141.70 138.45 135.35 132.75
1  3/16 1.1875  .3530  .3125 1         4 6  3/8  251238 134.75 1.1281 1.1905 172.45 153.70 147.40 144.25 141.05 138.45
* 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.