Ko-ken Allen bit Sockets

[Ralf11]

I hear that Ko-ken has the "nut-grip" technology with the ring shaped spring on some of their Allen bit sockets, but looking at the Koken web site I can't figure out which ones have this.

Anybody know?

 

[Fedwrench]

Ko-Ken calls it grip ring.

available in 62 or 100 mm bit length 3/8 drive.

3015M-62-100 series

8 piece metric set 3,4,5,7,8,10, & 12 mm

RS3015M/8-L62

RS3015M/8-L100

 

[Ralf11]

Thanks

Any 1/4" drive Allen socket with the grip-ring?

I couldn't find any on Palmac's site...

 

[pizza]

why rely on some retailer's site to learn about a company's offerings?
there's no substitute for the catalog:
http://www.koken-tool.co.jp/catalog/KOKEN_201908ENSP.pdf

once you find what you want, search on amazon.co.jp if you're not seeing it on palmac

 

[Fedwrench]

Thanks

Any 1/4" drive Allen socket with the grip-ring?

I couldn't find any on Palmac's site...

There aren't any 1/4 inch drive grip ring bits listed in my 2017-2018 Koken catalog.

Update: I glanced over the offering chart on page 38 in the catalog Pizza linked above, and the chart only shows the grip ring being offered in 3/8 drive.