Iron-type golf club with interchangeable head-shaft connection

An iron-type golf club comprising:

• an iron-type club head including a hosel;
• a tube mounted in the hosel of the club head, the tube being composed of a metallic material and having an upper end with an inner diameter larger than an inner diameter at a lower end of the tube, the tube including a tapered portion and a rotation prevention portion, the rotation prevention portion being located below the tapered portion and defining a keyway having a non-circular configuration;
• a shaft removably coupled to the club head;
• a sleeve mounted on the tip end of the shaft and disposed between the shaft and the tube, the sleeve being composed of a metallic material, a lower section of the sleeve including a frustoconical portion, a keyed portion and a lower end of the sleeve, the frustoconical portion extending along at least one quarter of the length of the lower section, the frustoconical portion being received in the tapered portion of the tube, the keyed portion being received in the rotation prevention portion of the tube, the keyed portion having an external configuration complementary to that of the keyway to prevent rotation of the shaft relative to the club head;
• and
• a mechanical fastener removably securing the sleeve to the tube.