You can compare the Vessel to an Impact Phillips Tip. If same, then all good.
Best test is to actually see how it actually fits the Mikuni Carb screws. The difference from a regular Phillips will be obvious, as the JIS tip will NOT cam out or strip the Screw.
American Tips were designed to cam-out to avoid over-torquing during the assembly line process. It's a "Go - No Go" approach that eliminates guesswork and speeds up assembly.
Vessel’s Megadora 900 cross-point screwdriver has been developed to the JIS (Japanese Industrial Standard), meaning the tip design is superior to a typical Phillips head screwdriver. The JIS screwdriver tip works with both Phillips and JIS screws, without experiencing cam out which can strip the screw and make it difficult to remove.
Vessel 900 P2*100 Phillips #2 x 4" (100mm) Blade Magnetic Megadora Screwdriver
Vessel's unique hybrid Cross Point design was born from the JIS specifications they helped establish,
but has been dimensionally refined to accommodate most industrial specifications including ANSI, DIN, and others.
Fully hardened chrome vanadium steel blade with high precision black tip. Magnetic tip holds screws securely.
Triple-molded handle for comfort. The corners of the hexagonal cross-section are molded with elastomer for a soft fit and high torque transmission.
Non-slip mesh handle surface for a secure grip in oily conditions.
Blade Length: 4” (100mm)
Overall length: 8-1/4”
Made in Japan
Vessel 900P2-100 Magnetic Megadora Phillips #2, Cross-Point #2 Screwdriver
900P2100, 900 P2 100