Crafted from resistant alloys steel, the tool features ergonomic antislip handles to slippage during delicate watch repair operations Essential for crown tubes in watch case, servicing chronographs, or adjusting waterproof seal during intricate jewelry repairs Precisions engineered with 4 interchangeable pin and double hexagonal / octagonal tip, this watch crown tube removers delivers high torqued for secure tube across multiple case size Ideal for professional watchmakers, jewelry restorers, and horology enthusiasts requiring surgical precisions in luxury watch maintenance The grooves on hardened steel pin ensures not damage during, making it great watch for various watch models, Manufacturer: FHGSPQWM