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Golf Iron Sets

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Mizuno Pro 221 / Pro 225 Combo Iron Set 4-PW Project X LZ 6.0 Stiff Steel RH
stickhawk
Mizuno Pro 221 / Pro 225 Combo Iron Set 4-PW Project X LZ 6.0 Stiff Steel RH
$1,020
Mizuno Pro 221 Iron Set - 4-PW - Project X 6.0 Stiff Flex Steel - NEW
HouseOfGolf
Mizuno Pro 221 Iron Set - 4-PW - Project X 6.0 Stiff Flex Steel - NEW
$750
Mizuno Pro 221 4-PW Iron Set Stiff Flex Right Project X LS 6.0 Steel # 186497
golfclubbrokers
Mizuno Pro 221 4-PW Iron Set Stiff Flex Right Project X LS 6.0 Steel # 186497
$642
Mizuno JPX 825 Pro 4-PW,GW Iron Set Stiff Flex Right Project X 6.0 Steel #186564
golfclubbrokers
Mizuno JPX 825 Pro 4-PW,GW Iron Set Stiff Flex Right Project X 6.0 Steel #186564
$352
Mizuno Pro 221 Iron Set - 3-PW - Project X 6.0 Stiff Flex Steel - NEW
HouseOfGolf
Mizuno Pro 221 Iron Set - 3-PW - Project X 6.0 Stiff Flex Steel - NEW
$830
Mizuno Pro 221 Iron Set - 3-PW - Project X 6.0 Stiff Flex Steel - NEW
HouseOfGolf
Mizuno Pro 221 Iron Set - 3-PW - Project X 6.0 Stiff Flex Steel - NEW
$800
Mizuno MP-18 MMC 4-PW Iron Set Right Stiff Project X Rifle 6.0 Steel # 178816
golfclubbrokers
Mizuno MP-18 MMC 4-PW Iron Set Right Stiff Project X Rifle 6.0 Steel # 178816
$352
Mizuno JPX 923 Tour 4-PW Iron Set Stiff Right Project X LZ 6.0 Steel # 187775
golfclubbrokers
Mizuno JPX 923 Tour 4-PW Iron Set Stiff Right Project X LZ 6.0 Steel # 187775
$630
Used RH Mizuno Pro 225 HMB Forged Irons 4-PW Project X LS X Stiff Steel Set
SwingPointGolf
Used RH Mizuno Pro 225 HMB Forged Irons 4-PW Project X LS X Stiff Steel Set
$800
Mizuno Pro 223 Iron Set 4-PW Steel Project X Rifle Precison 6.5 X-Stiff Flex
Akersgolf
Mizuno Pro 223 Iron Set 4-PW Steel Project X Rifle Precison 6.5 X-Stiff Flex
$800
Mizuno Pro 223 Iron Set 4-PW+AW Project X Loading Zone 6.0 120g Stiff Steel RH
stickhawk
Mizuno Pro 223 Iron Set 4-PW+AW Project X Loading Zone 6.0 120g Stiff Steel RH
$1,220
Titleist T100 2021 4-PW Iron Set Stiff Flex Right Project X LZ 6.0 Steel #183798
golfclubbrokers
Titleist T100 2021 4-PW Iron Set Stiff Flex Right Project X LZ 6.0 Steel #183798
$665
READ Mizuno Pro 719 Forged Boron Iron Set 4-PW GW Project X 6.0 Stiff Flex RH
central_golf
READ Mizuno Pro 719 Forged Boron Iron Set 4-PW GW Project X 6.0 Stiff Flex RH
$360
Callaway Rogue ST Pro Iron Set 4-PW Steel Project X Rifle 105g 6.0 Stiff Flex
Akersgolf
Callaway Rogue ST Pro Iron Set 4-PW Steel Project X Rifle 105g 6.0 Stiff Flex
$600
Mizuno Pro 225 HMB Iron Set - 4-PW, GW - Regular Flex Steel - NEW
HouseOfGolf
Mizuno Pro 225 HMB Iron Set - 4-PW, GW - Regular Flex Steel - NEW
$950
Mizuno MP-18 SC Forged 4-PW Iron Set Project X LZ 6.0 120g Steel Stiff
clubfindersgolf
Mizuno MP-18 SC Forged 4-PW Iron Set Project X LZ 6.0 120g Steel Stiff
$500
Callaway X Forged '18 6-PW Iron Set Steel Project X 6.0 Stiff Flex
Akersgolf
Callaway X Forged '18 6-PW Iron Set Steel Project X 6.0 Stiff Flex
$270
Callaway X Forged CB 21 4-PW Iron Set Stiff Right Project X IO 6.0 Steel #187744
golfclubbrokers
Callaway X Forged CB 21 4-PW Iron Set Stiff Right Project X IO 6.0 Steel #187744
$600
Callaway 2013 X Hot Pro Iron Set 4-PW Rifle Project X 6.0 Stiff Steel Mens RH
stickhawk
Callaway 2013 X Hot Pro Iron Set 4-PW Rifle Project X 6.0 Stiff Steel Mens RH
$398
Titleist T100S 2021 4-PW,48*Iron Set Right Stiff Project X LZ 6.0 Steel # 184480
golfclubbrokers
Titleist T100S 2021 4-PW,48*Iron Set Right Stiff Project X LZ 6.0 Steel # 184480
$836
Titleist MB 712 Forged 4-PW Iron Set Project X Rifle 6.0 Steel Stiff
clubfindersgolf
Titleist MB 712 Forged 4-PW Iron Set Project X Rifle 6.0 Steel Stiff
$330
Titleist 620 CB Forged 4-PW Iron Set Project X Rifle 6.0 Steel Stiff
clubfindersgolf
Titleist 620 CB Forged 4-PW Iron Set Project X Rifle 6.0 Steel Stiff
$930
Ping i59 Iron Set - 4-PW - Project X IO 6.0 110g Stiff Flex Steel - Black Dot
HouseOfGolf
Ping i59 Iron Set - 4-PW - Project X IO 6.0 110g Stiff Flex Steel - Black Dot
$640
Mizuno Pro 221 Iron Set - 3-PW - Project X 6.5 Extra Stiff X Flex Steel - NEW
HouseOfGolf
Mizuno Pro 221 Iron Set - 3-PW - Project X 6.5 Extra Stiff X Flex Steel - NEW
$870
RIGHT HAND TAYLORMADE STEALTH GOLF IRON SET 4-PW PROJECT X IO 6.0 STIFF
Shanstat
RIGHT HAND TAYLORMADE STEALTH GOLF IRON SET 4-PW PROJECT X IO 6.0 STIFF
$849
Cobra Aerojet 6-PW,GW Iron Set Right Stiff Flex Project X LZ 6.0 Steel # 181027
golfclubbrokers
Cobra Aerojet 6-PW,GW Iron Set Right Stiff Flex Project X LZ 6.0 Steel # 181027
$396
Mizuno JPX 900 Forged 4-PW Iron Set Extra Stiff Right Project X LZ Steel #187634
golfclubbrokers
Mizuno JPX 900 Forged 4-PW Iron Set Extra Stiff Right Project X LZ Steel #187634
$410
READ Callaway RAZR X Muscleback MB 4-PW Iron Set Project X 6.0 Stiff Flex RH
central_golf
READ Callaway RAZR X Muscleback MB 4-PW Iron Set Project X 6.0 Stiff Flex RH
$292
Mizuno MP 60 Iron Set 3-PW Project X Precision Rifle 6.0 Stiff Steel Mens RH
stickhawk
Mizuno MP 60 Iron Set 3-PW Project X Precision Rifle 6.0 Stiff Steel Mens RH
$224
Titleist 2021 T100S Iron Set 4-PW+AW Project X 6.0 Stiff Steel Mens RH
stickhawk
Titleist 2021 T100S Iron Set 4-PW+AW Project X 6.0 Stiff Steel Mens RH
$870
Titleist T100S 2021 4-PW Iron Set Right Stiff Flex Project X LZ Steel # 183737
golfclubbrokers
Titleist T100S 2021 4-PW Iron Set Right Stiff Flex Project X LZ Steel # 183737
$660
Mizuno MP 52 Iron Set 3-PW Project X Precision Rifle 6.0 Stiff Steel Mens RH
stickhawk
Mizuno MP 52 Iron Set 3-PW Project X Precision Rifle 6.0 Stiff Steel Mens RH
$319

Flex refers to how much the shaft of the golf club bends during the swing. There are generally five ratings for flex: extra stiff, stiff, regular, senior, and ladies. Your optimal flex will vary based on your technique and driver distance.

As shown here:

Flex Driver Distance
Extra stiff Over 275 yards
Stiff 240-275 yards
Regular 200-240 yards
Senior 180-200 yards
Ladies Under 180 yards

Iron sets typically include seven or eight clubs consisting of 4, 5, 6, 7, 8 and 9 irons in addiiton to a pitching wedge and sometimes a gap wedge.