Amcraft Red & Blue Duct Board Kerfing Tools
Amcraft Red and Blue duct board tools let fabricators cut clean, precise grooves and end cut-offs in fiberglass duct board. With a simple change of blades, the Red and Blue tools fabricate four different end cut-offs, making them essential hand tools for HVAC sheet-metal shops and duct board fabrication.
Amcraft Red & Blue Tools at a Glance
Red Tool — 90° V or Miter Cut
| #1100 | 1" Red Tool |
|---|---|
| #1084 | 1-1/2" Red Tool |
| #2100 | 2" Red Tool |
| #3000 | 3" Red Tool |
The Red tool makes a 90° V or miter cut and is used for Cuts #2, #3, and #4 in the V-groove method.
Blue Tool — Fabricate 4 End Cut-Offs
| #1102 | 1" Blue Tool |
|---|---|
| #1087 | 1-1/2" Blue Tool |
| #2102 | 2" Blue Tool |
Fabricate four different end cut-offs with a simple change of blades. The Blue tool completes the final cut in the V-groove method.
"V" Groove Method
Using Amcraft Redand Bluekerfing tools with the Amcraft Layout Square, follow these four cuts to form a clean V-groove:
- First Cut:Cut with the Red Tool.
- Second Cut:Measure from the top right of the Red cut, then cut with the Red Tool.
- Third Cut:Measure from the top right of the Red cut, then cut with the Red Tool.
- Fourth Cut:Measure from the top right of the Red cut, then cut with the Blue Tool.
Pro tip:Pair these tools with the Amcraft Layout Squarefor accurate, repeatable measurements on every groove.
Frequently Asked Questions
What is the difference between the Amcraft Red and Blue tools?
The Red tool makes a 90° V or miter cut and handles Cuts #1, #2, and #3 in the V-groove method. The Blue tool fabricates four different end cut-offs with a simple change of blades and completes the final #4 cut.
What board thicknesses do these tools cover?
Both tools are offered in multiple sizes to match common duct board thicknesses: 1", 1-1/2", 2", so you can match the tool to your board.
Do I need both tools to make a V-groove?
Yes. The V-groove method uses the Red tool for the first three cuts and the Blue tool for the fourth, so both are required to complete the groove.
