Japanese NHK plug gauge depth gauge GDH201 GDH401

Japanese NHK plug gauge depth gauge GDH201 GDH401

Japanese NHK plug gauge depth gauge GDH201 GDH401

The machining technology of screw head forming tool punch is a highly precise machining technology that cannot be followed by others. In addition to excellent features such as high stamping accuracy and quality uniformity, it is also produced under comprehensive quality control.

punch press

The punch we manufacture is called a head punch, which is one of the molds used for screw manufacturing.
It is a mold used to mold screw heads and driver drive holes during the head processing of screw manufacturing, and is also one of the important components in screw fastening.
We have developed a punch and high-speed steel material (high-speed tool steel) for processing in cold forming, utilizing plastic processing technology. It has been widely used in automotive screw and bolt sizes through intelligent small size screw tightening.

Since 1966, we have been inviting you to visit NHK Spaspunch.
Based on our proprietary technology developed over the years, we will continue to develop and supply a variety of high hit punches.

Q gauge/bite force gauge

We use our grinding technology to provide instruments for checking the quality of screwdriver drive holes.
These are instruments used to manage the depth and opening of drive holes for screw products, which is essential for quality control of screw products.
We mainly produce manual plug gauges for bite confirmation that meet various standards, as well as gauges for Q-size measurement (sink depth measurement).
The Q-size measuring instrument consists of three products: gauge pin (measuring piece), sleeve (main body), and dial gauge.