COFA Deburring Series 4
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
4.0 .157 3.9 .154 4.5 .177 COFA4-4.0- ☐ COFA4b-4.0- ☐
4.1 .161 4.0 .157 4.6 .181 COFA4-4.1- ☐ COFA4b-4.1- ☐
4.2 .165 4.1 .161 4.7 .185 COFA4-4.2- ☐ COFA4b-4.2- ☐
4.3 .169 4.2 .165 4.8 .189 COFA4-4.3- ☐ COFA4b-4.3- ☐
4.4 .173 4.3 .169 4.9 .193 COFA4-4.4- ☐ COFA4b-4.4- ☐
4.5 .177 4.4 .173 5.0 .197 COFA4-4.5- ☐ COFA4b-4.5- ☐
4.6 .181 4.5 .177 5.1 .201 COFA4-4.6- ☐ COFA4b-4.6- ☐
4.7 .185 4.6 .181 5.2 .205 COFA4-4.7- ☐ COFA4b-4.7- ☐
4.8 .189 4.7 .185 5.3 .209 COFA4-4.8- ☐ COFA4b-4.8- ☐
4.9 .193 4.8 .189 5.4 .213 COFA4-4.9- ☐ COFA4b-4.9- ☐
 












COFA Deburring Series 4 - Spare Parts
1 2 3 4
Retainer Pin Assembly Pin Split Pin Blade
GH-H-S-0902 GH-C-V-0206 GH-C-E-0819 See Below
5 6
Spring Fixture
See Below GH-C-V-0541

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-0342 Aluminum, Brass, Magnesium
H   GH-C-E-0343 Grey Cast Iron, Nodular Iron
S   GH-C-E-0344 Carbon Steel, Free Machining Steel
Z   GH-C-E-0345 Long Chipping Steel, Stainless
Z1 GH-C-E-0346 Titanium, Hardened Steel, Nickel Alloy

Blade Options:
Blades are available from stock as front and back cutting (fab) or back cutting only (bco).
Blade Code Blade Type Geo. Series 4
TiN 20° Standard fab GH-C-M-0504
b bco GH-C-M-0914
y TiALN 10° Flat Surfaces fab GH-C-M-0764
yb bco GH-C-M-0874
x TiN 30° Uneven Spec fab GH-C-M-0148
xb bco GH-C-M-0182


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.