VESSEL GO-SAI Bit [No.GS5P-01] (Assorted 5PC Set) (Japan Import)

Works well for those japanese screws. Strong bits

Good product. Quality material & design. Nice selection of size,length & purpose of use. A quality set of bits for proffesional mechanics or backyard mechanics alike. Not practical for a drill or impact tool but great for any ratcheting screw driver that accepts 1/4" bits.

Works great on my motorcycles

Nice but a little odd that the detents on the bits do not match the spacing of those on interchangable 1/4" bits in the US.

I bought these to use with my Vessel 220BW ball-grip driver handle, and they work very well for that. There's not enough wobble or rattling to speak of. These bits do have a longer 13mm base that slides into the chuck, so they will only work with Japanese standard drivers. I knew that going in. They are very well made. All the dimensions are cut perfectly, the finish is nice, and they're made in Japan with Japanese tool steel, which is right up on the same level with US and German made steels. All Japanese made phillips head bits are JIS, even if it doesn't state it on the package. I find that JIS fits standard US phillips hardware much better than regular phillips, and doesn't try to cam out nearly as bad. I ordered another, different 5-peice set of these too, they're just not in yet. The black Vessel Go-sai belt-loop bit holder work best to hold these, even though it'sa tight fit until you can get it worn in a little. They don't quite fit right in my other standard 25mm-length bit holders.

I was skeptical as I’ve multitudes of Phillips drivers, every work area has a collection and yes sometimes you find one works on a partial screw better than others but when my son introduced me to the Vessel Go-Sai bit tools I found that they generally do provide to be a much better driver. Hey they’re not life changing but certainly worth having a set or two if you’re serious about your tools. Recommended

These are very well made and seem to be very durable. NOTE: not mase for US standard drivers and equipment. They do not lock in to any of my drivers or adapters. The lock-in detent is too far down the shaft to allow the locking mechanisum of my tools to close and the bits fall out. I will be cutting the double ended ones in half and grinding in a detent at the right place to allow them to fit in my tools.

Best thing i've ever used for building Tamiya kits.

These drill screw driver bits are Japanese made & are the best I have come across for the handyman to use. Not expensive & better steel & fit than a lot that you get with your drill & also the hardware store.

早速、活躍しました！ なかなか良さげです。 価格も安いし、良いですね！

The quality is good

Son muy buenas puntas ya tengo varios juegos y son de excelente calidad, solo hay que t4abajar el zocalo que viene mas largo pero nada importante ampliamente recomendado.

Bits are in the original package, looking nice and very precisely made. They fit perfectly in screws and holders without any play (must be Japanese 13 mm deep holder or other that can fit longer anvil of those bits. I use Vessel ball grip and Wiha Centrofix. They fit 1/4" (6.3 mm) chucks and holders but they can't lock in in some of them). I primarily appreciate those single-tip slim Ph1 and Ph2 bits. It is challenging to find those bits but I think they are the best and worth the money, especially for JIS crosshead screws on Japanese products: cars, motorcycles, electronics, bicycles etc. It will take time to assess the quality of the steel they are made of, I trust Vessel on that matter. Thanks to Amazon, to seller Shop Motto and Vessel.