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

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.

Great little set of Japanese bits. I got the vessel driver to go with these and it's a great addition to the tool box.

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.

Very high quality and workmanship for the price. Would buy again

Stuff made in Japan used a little bit different types of screws. Normal screwdrivers will work but can very easily slip and mar up the head of the screws. It makes black screws look bad with the exposed metal from slipping. These grip Japanese screws perfectly so no marring of the head and no slipping. A must have if you work on anything made in Japan.

The bits are TOP NOTCH! Solid feel and fit.

Had some Asian machines I had to work on and thought their Phillip screws were wonk. Then found about about the JIS standards. Bought this set as the most affordable with good reviews. WOW! Made all the difference on the "Asian" hardware BUT also worked far better on actual Phillips screws than regular Phillips heads. May never buy another "Phillips" driver again. Should have spent the extra $2 to get the driver set. They're also slightly magnetic. Great for holding the screw or hunting down a dropped one but not magnetic enough to be jumping to nearby parts. Only reason I dropped a star on comfort was because they don't fit snug in any 1/4" drive sockets. Still, a pleasure to use.

Good quality a always