IGM FD3130 is the optional steel template for making 12.7 mm box joints on IGM FD300 and FD600 jigs. It mounts onto the existing jig structure without modifications. It includes red positioning stops. For use, the IGM M100-12781 HW downcut D12.55 x 25 mm router bit with 8 mm shank and the D15.8 x 4 mm guide bushing are required, both not included. Distributed in Italy by Krollit, official IGM distributor since 2007.
- Joint type: 12.7 mm box joint
- Compatible with: IGM FD300 and FD600 jig
- Template material: steel
- Positioning stops: included, red
- Guide bushing: not included β D15.8 x 4 mm required, the same as supplied with the FD300 jig
- Required router bit, not included: IGM M100-12781 HW downcut D12.55 x 25 mm, 8 mm shank
Who the FD3130 is suitable for
| Profile |
Compatibility |
Reason |
| Owner of an IGM FD300 or FD600 jig |
Suitable |
Extends the existing jig with 12.7 mm box joint capability without purchasing new equipment |
| Woodworker producing furniture, boxes and solid wood containers |
Suitable |
The 12.7 mm pitch produces wider fingers than 8 mm, with a more pronounced decorative appearance on thicker workpieces |
| User who does not own an FD300 or FD600 jig |
Not suitable |
The FD3130 is an optional template β it requires the FD300 or FD600 jig as a base |
Not suitable for: use without the correct downcut router bit β the 12.7 mm box joint requires the IGM M100-12781 HW D12.55 x 25 mm router bit with 8 mm shank; using bits with a different diameter will not produce a precise joint.
Standard equipment
- Steel template for 12.7 mm box joint
- Red positioning stops
Technical specifications
| Joint type |
12.7 mm box joint |
| Compatibility |
IGM FD300 and FD600 jig |
| Template material |
Steel |
| Included stops |
Yes, red |
| Required bushing |
D15.8 x 4 mm, not included β the same as the FD300 jig |
| Required router bit |
IGM M100-12781 HW downcut D12.55 x 25 mm, 8 mm shank, not included |
Frequently Asked Questions
Does the FD3130 work with both the FD300 and FD600?
Yes, the FD3130 template is compatible with both IGM FD300 (305 mm) and FD600 jigs. It mounts onto the existing structure without modifications or additional tools.
What is the difference between the 12.7 mm FD3130 and the 8 mm FD3080?
The difference is the width of the joint fingers: 12.7 mm for the FD3130 versus 8 mm for the FD3080. The wider fingers of the FD3130 are preferred on thicker workpieces, over 18 mm, where an 8 mm pitch would look too tight, and when a more visible decorative effect is desired on the joint. The two templates require different router bits and are not interchangeable.
Is the 15.8 mm bushing the same one included with the FD300 jig?
Yes. The FD3130 uses the same D15.8 x 4 mm guide bushing supplied with the FD300 jig for making half-blind dovetails. Users who already own the FD300 do not need to purchase the bushing separately β only the M100-12781 router bit is required.
Which router bit is required to use the FD3130?
For the 12.7 mm box joint with the FD3130 template, the IGM M100-12781 HW downcut D12.55 x 25 mm router bit with 8 mm shank is required. The 12.55 mm diameter, slightly smaller than 12.7 mm, is calibrated to produce fingers with the correct clearance for a precise joint. Contact Krollit at +39 0825-1494022 to check availability.
Can I use multiple optional templates on the same FD300 jig?
Yes. The IGM FD300 jig accepts several interchangeable optional templates: 8 mm box joint (FD3080), 12.7 mm box joint (FD3130), small lapped dovetail and through dovetail. Each template mounts and removes quickly on the same structure. Contact Krollit for the complete catalogue of compatible templates.
