COFA Deburring Series 12
Ød ØD1 ØD Complete Tool with Blade
Min. Hole Tool Diameter Approx. Cutting Dia. Front and Back Back Only
mm inches mm inches mm inches Order Number Order Number
12.4 .488 12.2 .480 13.8 .543 COFA12-488-☐ COFA12b-488-☐
12.8 .504 12.6 .496 14.2 .559 COFA12-504-☐ COFA12b-504-☐
13.2 .520 13.0 .512 14.6 .575 COFA12-520-☐ COFA12b-520-☐
13.6 .536 13.4 .528 15.0 .591 COFA12-536-☐ COFA12b-536-☐
14.0 .551 13.8 .543 15.4 .606 COFA12-551-☐ COFA12b-551-☐
14.4 .567 14.2 .559 15.8 .622 COFA12-567-☐ COFA12b-567-☐
14.8 .583 14.6 .575 16.2 .638 COFA12-583-☐ COFA12b-583-☐
15.2 .599 15.0 .591 16.6 .654 COFA12-599-☐ COFA12b-599-☐
15.6 .614 15.4 .606 17.0 .669 COFA12-614-☐ COFA12b-614-☐
16.0 .630 15.8 .622 17.4 .685 COFA12-630- ☐ COFA12b-630-☐
16.4 .646 16.2 .638 17.8 .701 COFA12-646-☐ COFA12b-646-☐
16.8 .662 16.6 .654 18.2 .717 COFA12-662-☐ COFA12b-662-☐
17.2 .677 17.0 .669 18.6 .732 COFA12-677-☐ COFA12b-677-☐
17.6 .693 17.4 .685 19.0 .748 COFA12-693-☐ COFA12b-693-☐
18.0 .709 17.8 .701 19.4 .764 COFA12-709-☐ COFA12b-709-☐
18.4 .725 18.2 .717 19.8 .780 COFA12-725-☐ COFA12b-725-☐
18.8 .740 18.6 .732 20.2 .795 COFA12-740-☐ COFA12b-740-☐
19.2 .756 19.0 .748 20.6 .811 COFA12-756-☐ COFA12b-756-☐
19.6 .772 19.4 .764 21.0 .827 COFA12-772-☐ COFA12b-772-☐
20.0 .788 19.8 .780 21.4 .843 COFA12-788-☐ COFA12b-788-☐
 












COFA Deburring Series 12 - Spare Parts
1 2 3 4
Retainer Block Assembly Pin Screw Roll Pin
GH-C-E-0800 GH-C-V-0100 GH-H-S-0530 GH-C-E-0801
5 6 7
Blade Spring Fixture
See Below See Below C12-V-0018

Spring Options:
The cutting force of the COFA tool is controlled by a flat spring
Choose the proper spring for the material being machined.
Spring Code Order Number     Typical Materials
    Large or Heavy Burrs may require a stronger spring
W   GH-C-E-0361 Aluminum, Brass, Magnesium
H   GH-C-E-0362 Grey Cast Iron, Nodular Iron
S   GH-C-E-0363 Carbon Steel, Free Machining Steel
Z   GH-C-E-0364 Long Chipping Steel, Stainless
Z1 GH-C-E-0365 Titanium, Hardened Steel, Nickel Alloy
Z2 GH-C-E-0366 Nickel Alloy, etc
Z3 GH-C-E-0367 Nickel Alloy, etc

Blade Options:
Blades are available from stock as front and back cutting (fab) or back cutting only (bco).
Blade Code Blade Type Geo. Series 12
TiN 20° Standard fab GH-C-M-0007
b bco GH-C-M-0017
y TiALN 10° Flat Surfaces fab GH-C-M-0467
yb bco GH-C-M-0477
x TiN 30° Uneven Spec fab GH-C-M-0105
xb bco GH-C-M-0104


How to Order:
Ordering is simple. The COFA tool provides different blade and spring options
to create the most effective tool for any application depending on the hole
geometry and type of material being machined.

1. Choose the tool that best fits the hole diameter.
2. Choose the blade that best fits the hole geometry.
3. Choose the spring that best fits the material.






We reserve the right to make technical changes.