COFA Deburring Series 12 OVERSIZE - METRIC
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
30.5 1.201 30.3 1.193 31.9 1.256 COFA12-30.5-☐ COFA12b-30.5-☐
31.0 1.221 30.8 1.213 32.4 1.276 COFA12-31.0-☐ COFA12b-31.0-☐
31.5 1.240 31.3 1.232 32.9 1.295 COFA12-31.5-☐ COFA12b-31.5-☐
32.0 1.260 31.8 1.252 33.4 1.315 COFA12-32.0-☐ COFA12b-32.0-☐
32.5 1.280 32.3 1.272 33.9 1.335 COFA12-32.5-☐ COFA12b-32.5-☐
33.0 1.299 32.8 1.291 34.4 1.354 COFA12-33.0-☐ COFA12b-33.0-☐
33.5 1.318 33.3 1.311 34.9 1.374 COFA12-33.5-☐ COFA12b-33.5-☐
34.0 1.339 33.8 1.331 35.4 1.394 COFA12-34.0-☐ COFA12b-34.0-☐
34.5 1.358 34.3 1.350 35.9 1.413 COFA12-34.5-☐ COFA12b-34.5-☐
35.0 1.378 34.8 1.370 36.4 1.433 COFA12-35.0-☐ COFA12b-35.0-☐
35.5 1.398 35.3 1.390 36.9 1.453 COFA12-35.5-☐ COFA12b-35.5-☐
36.0 1.417 35.8 1.409 37.4 1.472 COFA12-36.0-☐ COFA12b-36.0-☐
36.5 1.437 36.3 1.429 37.9 1.492 COFA12-36.5-☐ COFA12b-36.5-☐
37.0 1.457 36.8 1.449 38.4 1.512 COFA12-37.0-☐ COFA12b-37.0-☐
37.5 1.477 37.3 1.469 38.9 1.531 COFA12-37.5-☐ COFA12b-37.5-☐
38.0 1.496 37.8 1.488 39.4 1.551 COFA12-38.0-☐ COFA12b-38.0-☐
38.5 1.516 38.3 1.508 39.9 1.571 COFA12-38.5-☐ COFA12b-38.5-☐
39.0 1.536 38.8 1.528 40.4 1.591 COFA12-39.0-☐ COFA12b-39.0-☐
39.5 1.555 39.3 1.547 40.9 1.610 COFA12-39.5-☐ COFA12b-39.5-☐
40.0 1.575 39.8 1.567 41.4 1.630 COFA12-40.0-☐ COFA12b-40.0-☐
 












COFA Deburring Series 12 OVERSIZE - Spare Parts
1 2 3 4
Retainer Block Assembly Pin Screw Roll Pin
GH-C-E-0800 GH-C-V-0130 GH-H-S-0513 GH-C-E-0807
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 TiCN 10° Flat Surfaces fab GH-C-M-0447
yb bco GH-C-M-0457
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.