I designed HiKOKI system case front handle referred from this model. https://www.printables.com/model/841950-makita-makpac-front-handle

It uses six M5 x 15 mm socket head cap screws and six M5 nuts.

The handle hinge is a common shape for both the left and right sides.

No Heat-Sets Required.

This MOD is confirmed to work with HiKOKI System Case Size 2 (M-size). 

It may also be compatible with other sizes (1/S, 3/L, etc.) and Makita MakPacs.

I printed with Qidi ABS-GF,5 perimeters,15% (Gyroid),no Support.

<BOM>

6x M5 x 15 mm socket head cap screws

6x M5 nuts

6x Large-diameter washers :Larger than standard size is recommended to prevent damage to the case body

<Assembly >

Using the jig's holes (3.5 mm) as a guide, first drill pilot holes (approx. 3 mm) in 6 locations with a thin drill bit.

Using the pilot holes as a guide, drill the final holes (6 locations) with a 5 mm drill bit.

Place one side of the hinge over the case holes and secure it with 3 M5 bolts, using the (large-diameter recommended) washers from the inside of the case.

Insert the FrontHandle.stl into the hinge.

Place the other hinge part over the handle body.