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Japanese Industrial Standard screw drive bits are exceedingly difficult to obtain/ purchase from a UK supplier. Very often Phillips bits are used instead, which ends up damaging the screw head particularly if the screw is seized in.I order this product direct from Japan for under £10 including postage and shipping .10 days after placing the order the parcel arrived safely The seized screws I needed to extract were removed with ease.If you own a Japanese Car or M/Bike and carry out your own repairs they will be the best investment you ever make
Verified purchase: Yes | Condition: New
Most folks don't realize that the Philips head screws on Japanese cars and motorcycles usually aren't. They're usually JIS (Japanese Industrial Standard). Using Philips bits on JIS screws often chews up the heads, A JIS screw can often be identified by the punch mark (see picture) between two of the flutes on the head. Also, the flutes have parallel edges, rather than the tapered edges of Philips head screws. These Vessel JIS bits are very high quality. They fit the screw heads snugly and won't cam out. Listed as 8 mm bits, they actually measure 7.87 mm, or exactly 5/16" - the perfect size to fit hand operated impact tools such as the one shown in the pictures.
Verified purchase: Yes | Condition: New
These JIS drivers are forged and machined steel (NOT chinesium). While they look like standard Phillips drivers, JIS cross drivers are slightly different in the taper angle and the shape of the of the ramps. Pricey but absolutely required for Japanese motorcycles, engines, cars and heavy equipment when loosening and tightening to torque specs for cross-head screws WITHOUT destroying the screwheads. Interestingly, JIS drivers work well on Phillips head screws but Phillips drivers destroy JIS screws! JIS screws USED TO BE identified by a small dot on their heads,
Verified purchase: Yes | Condition: New
Like most Japanese machined items the metal, workmanship and finish coating appear to be of the highest quality. If you factor in free shipping from Japan it's a good or reasonable deal on an item that is not available locally or even in North America from what I could see. I bought this to replace the poor quality bits that came with an impact driver that came with a impact socket set and am pleased with them. The only reason I haven't given them five stars is that I havent had them long enough to determine their resistance to corrosion.
Verified purchase: Yes | Condition: New
Work great on JIS screws found on Japanese motorcycles especially from the 60-70-80s. Would like to see some where they are mounted in 3/8" drive sockets.
Verified purchase: Yes | Condition: New
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