We developed this product as an evolution of Overstitch Wheels.

The following are the key points of development.
1. to create 4 types of Cogs (3mm/ 4mm/ 5mm /6mm)
By making Cogs that are compatible with Diamond hole punches, we can handle shapes that cannot be sewn with Diamond hole punches.

2. To make it possible to change the Cog with coins that are close at hand.
The Cog can be easily changed using coins that you have on hand.
Insert a coin into the minus part of the screw and turn it.

3. To make a part of the body where the index finger can be placed.
We made a protrusion on the curled part of the body where the index finger can be placed.
We aimed to create a tool that is easy to work with, avoiding injuries such as cutting the fingertip with the rotating pointed Cog.

4. Two colors for the Cog.
The color of the Cog is divided into two types (black/gray).
It is easy to distinguish the pitch size by the color of the Cog.
・
① Classified the cogs by color and the space between points of cogs(3mm,4mm,5mm,6mm)
correspond to our Diamond Hole Punches.
-space between points 4mm, 6mm → color : Black
-space between points 3mm, 5mm → color : Gray

② You can easily use a coin when you change the cogs.

③ Placing your finger on the protrusion on the body, so as to use this tool more safely and exactly. The body part is plated.

④JAPAN (proof of OKA Factory production) is imprinted.