Abstract: A head 2 includes: a face member fc1 having a hitting surface 4; and a body member bd1 having a hosel 6, a sole surface 8, and a toe-side surface 9. The face member fc1 further has a top-side flange FL1 including a top surface 5. The body member bd1 has a hosel-forming part 24 including the hosel 6, a sole-forming part 28 including the sole surface 8, and a toe-forming part 26 including the toe-side surface 9. The hosel-forming part 24 has a heel joint portion Jh joined to a heel-side end of the top-side flange FL1. The toe-forming part 26 has a toe joint portion Jt joined to a toe-side end of the top-side flange FL1. A body missing portion ms1 in which the body member bd1 is not present is provided between the toe joint portion Jt and the heel joint portion Jh.

Abstract: A golf club set includes a plurality of golf clubs 1 having different loft angles. The golf clubs 1 include at least one 1st golf club 1A having a loft angle of less than 34 degrees, and at least one 2nd golf club 1B having a loft angle of not less than 34 degrees. Each of the at least one 1st golf club 1A and the at least one 2nd golf club 1B comprises a clubface 3 provided with a plurality of face grooves 8 having a depth. The depth of the face grooves 8 of the at least one 2nd golf club 1B is larger than the depth of the face grooves 8 of the at least one 1st golf club 1A.

Abstract: A golf club set 2 includes three or more golf clubs. A straight line passing through a face center Fc and parallel to a toe-heel direction is defined as an X-axis, and an X-coordinate of a sweet spot SS is defined as SS-X. When the SS-Xs of respective heads are defined as SS-X1, SS-X2, . . . , SS-Xn (n is an integer of equal to or greater than 3) in an ascending order of a loft angle from the head having the smallest loft angle, the set 2 satisfies the following formulas 1 and 2: SS-X1?SS-X2? . . . ?SS-Xn??(Formula 1); SS-X1>SS-Xn??(Formula 2).

Abstract: A golf club set includes a plurality of golf clubs 1 having different loft angles. The golf clubs 1 include at least one 1st golf club 1A having a loft angle of less than 34 degrees, and at least one 2nd golf club 1B having a loft angle of not less than 34 degrees. Each of the at least one 1st golf club 1A and the at least one 2nd golf club 1B comprises a clubface 3 provided with a plurality of face grooves 8 having a depth. The depth of the face grooves 8 of the at least one 2nd golf club 1B is larger than the depth of the face grooves 8 of the at least one 1st golf club 1A.

Abstract: A head 2 includes: a face member fc1 having a hitting surface 4; and a body member bd1 having a hosel 6, a sole surface 8, and a toe-side surface 9. The face member fc1 further has a top-side flange FL1 including a top surface 5. The body member bd1 has a hosel-forming part 24 including the hosel 6, a sole-forming part 28 including the sole surface 8, and a toe-forming part 26 including the toe-side surface 9. The hosel-forming part 24 has a heel joint portion Jh joined to a heel-side end of the top-side flange FL1. The toe-forming part 26 has a toe joint portion Jt joined to a toe-side end of the top-side flange FL1. A body missing portion ms1 in which the body member bd1 is not present is provided between the toe joint portion Jt and the heel joint portion Jh.

Abstract: A head 2 includes: a face member fc1 having a hitting surface 4; and a body member bd1 having a hosel 6, a sole surface 8, and a toe-side surface 9. The face member fc1 further has a top-side flange FL1 including a top surface 5. The body member bd1 has a hosel-forming part 24 including the hosel 6, a sole-forming part 28 including the sole surface 8, and a toe-forming part 26 including the toe-side surface 9. The hosel-forming part 24 has a heel joint portion Jh joined to a heel-side end of the top-side flange FL1. The toe-forming part 26 has a toe joint portion Jt joined to a toe-side end of the top-side flange FL1. A body missing portion ms1 in which the body member bd1 is not present is provided between the toe joint portion Jt and the heel joint portion Jh.

Abstract: A head 2 includes a face member fc1 formed by casting and a body member bd1 having an opening 20 on a hitting surface 4 side. The opening of the body member bd1 is covered by the face member fc1. The face member fc1 includes a flat plate portion PT forming the hitting surface 4 and a flange FL extending backward from a peripheral edge of the flat plate portion PT. The flange FL includes a first flange FL1 located in a top-side region, and a second flange FL2 located in a sole-side region. The flange FL is not provided in a toe-side region and a heel-side region. The flange FL is joined to the body member bd1.

Abstract: Ahead 2 includes: a face member fc1 having a hitting surface 4; and a body member bd1 having a hosel 6, a sole surface 8, and a toe-side surface 9. The face member fc1 further has a top-side flange FL1 including a top surface 5. The body member bd1 has a hosel-forming part 24 including the hosel 6, a sole-forming part 28 including the sole surface 8, and a toe-forming part 26 including the toe-side surface 9. The hosel-forming part 24 has a heel joint portion Jh joined to a heel-side end of the top-side flange FL1. The toe-forming part 26 has a toe joint portion Jt joined to a toe-side end of the top-side flange FL1. A body missing portion ms1 in which the body member bd1 is not present is provided between the toe joint portion Jt and the heel joint portion Jh.

Abstract: A golf club set 2 includes three or more golf clubs. A straight line passing through a face center Fc and parallel to a toe-heel direction is defined as an X-axis, and an X-coordinate of a sweet spot SS is defined as SS-X. When the SS-Xs of respective heads are defined as SS-X1, SS-X2, . . . , SS-Xn (n is an integer of equal to or greater than 3) in an ascending order of a loft angle from the head having the smallest loft angle, the set 2 satisfies the following formulas 1 and 2: SS-X1?SS-X2? . . . ?SS-Xn??(Formula 1); SS-X1>SS-Xn??(Formula 2).

Abstract: A head 2 includes a face member fc1 formed by casting and a body member bd1 having an opening 20 on a hitting surface 4 side. The opening of the body member bd1 is covered by the face member fc1. The face member fc1 includes a flat plate portion PT forming the hitting surface 4 and a flange FL extending backward from a peripheral edge of the flat plate portion PT. The flange FL includes a first flange FL1 located in a top-side region, and a second flange FL2 located in a sole-side region. The flange FL is not provided in a toe-side region and a heel-side region. The flange FL is joined to the body member bd1.

Abstract: A putter type golf club head 1 having a face 2 for hitting a ball on a front side has a head main body 1A provided in a face 2 side with a concave portion 3 and a face insert 1B made of an elastic material attached to the concave portion 3 of the head main body 1A. The face insert 1B has a three-layered structure composed of a first layer 8 disposed in a frontmost side, a third layer 10 disposed in a rearmost side and a second layer 9 sandwiched between the first layer 8 and the third layer 10, wherein hardnesses h1, h2 and h3 and moduli of repulsion elasticity r1, r2 and r3 of the first layer 8, second layer 9 and third layer 10, respectively, satisfy relationships: h1>h2, h3>h2, r1>r2 and r3>r2.

Abstract: A putter type golf club head 1 having a face 2 for hitting a ball on a front side has a head main body 1A provided in a face 2 side with a concave portion 3 and a face insert 1B made of an elastic material attached to the concave portion 3 of the head main body 1A. The face insert 1B has a three-layered structure composed of a first layer 8 disposed in a frontmost side, a third layer 10 disposed in a rearmost side and a second layer 9 sandwiched between the first layer 8 and the third layer 10, wherein hardnesses h1, h2 and h3 and moduli of repulsion elasticity r1, r2 and r3 of the first layer 8, second layer 9 and third layer 10, respectively, satisfy relationships: h1>h2, h3>h2, r1>r2 and r3>r2.

Abstract: An iron golf club set 2 includes n iron golf clubs. Toe side sole widths d1 of the clubs are defined as d1(1), d1(2), . . . , d1(n) in an ascending order of a real loft angle L1. A maximum value of the toe side sole widths d1 is defined as d1max. A minimum value of the toe side sole widths d1 is defined as d1min. Heel side sole widths d2 of the clubs are defined as d2(1), d2(2), . . . , d2(n) in an ascending order of a real loft angle L1. A maximum value of the heel side sole widths d2 is defined as d2max. A minimum value of the heel side sole widths d2 is defined as d2min. The maximum value d1max is substantially equal to the minimum value d1min. The maximum value d2max is substantially equal to the minimum value d2min.