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Big Bertha OS Irons

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Big Bertha OS Irons

Product Description

20 Out of 20 Score: Golf Digest 2018 Hot List Big Bertha OS Irons promote more distance in an entirely new way, led by extraordinary light and strong Exo-Cage that allows us to strategically position weight to increase forgiveness, and helps our industry-leading, next-generation 360 Face Cup produce even faster ball speeds and more distance.

More Forgiveness and Ball Speed from New Exo-Cage Technology

The uniquely light-and-strong design of the Exo-Cage allows more weight to be positioned in strategic locations to increase forgiveness while also helping our next-generation 360 Face Cup technology to function more efficiently.

Even More Ball Speed from Next Gen 360 Face Cup

Next-generation 360 Face Cup technology elevates clubface COR closer to the USGA limit to produce even faster ball speeds and more distance.

Higher Launch for Longer Carry from Tungsten-Loaded Standing Wave

Tungsten-Loaded Standing Wave technology in the sole lowers the center of gravity to promote a higher launch angle for longer carry and more ball speed on hits low on the face.

Progressive Center of Gravity for Increased Control

Progressive Center of Gravity technology entails moving the CG location progressively lower in each head from the highest-lofted to the lowest-lofted, promoting higher launch and long carry in the long-irons and increased control in the short-irons.

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PRODUCT SPECS

Big Bertha OS Irons Product Specs

Name	Loft	Availability	Standard Length	Lie	Offset	Graphite Swing Weight	Steel Swing Weight
#4	20.5°	RH / LH	39.125"	60.5°	0.260	D0	D2
#5	23°	RH / LH	38.50"	61.3°	0.240	D0	D2
#6	26°	RH / LH	37.875"	62.0°	0.220	D0	D2
#7	30°	RH / LH	37.25"	62.5°	0.200	D0	D2
#8	34.5°	RH / LH	36.625"	63.0°	0.175	D0	D2
#9	39°	RH / LH	36.00"	63.5°	0.150	D0	D2
PW	44°	RH / LH	35.75"	64.0°	0.125	D0	D2
AW	49°	RH / LH	35.50"	64.0°	0.100	D0	D2
SW	54°	RH / LH	35.25"	64.0°	0.100	D0	D2

TT Speed Step 80 (Steel)

Manufacturer	Flex	Shaft Weight	Torque	Kickpoint
True Temper	Regular	88	Low	Low
True Temper	Stiff	89	Low	Mid
True Temper	Regular	85	Low	Low
True Temper	Stiff	85	Low	Low

UST Mamiya Recoil ES 460 Graphite

Manufacturer	Flex	Shaft Weight	Torque	Kickpoint
UST	Light (F2)	64	Mid	Low
UST	Regular (F3)	65	Mid	Low
UST	Stiff (F4)	68	Mid	Low
UST	Light (F2)	63	Mid	High
UST	Regular (F3)	64	Mid	Low-Mid
UST	Stiff (F4)	67	Mid	Low-Mid

GALLERY

More Forgiveness and Ball Speed from New Exo-Cage Technology

The uniquely light-and-strong design of the Exo-Cage allows more weight to be positioned in strategic locations to increase forgiveness while also helping our next-generation 360 Face Cup technology to function more efficiently.

Even More Ball Speed from Next Gen 360 Face Cup

Next-generation 360 Face Cup technology elevates clubface COR closer to the USGA limit to produce even faster ball speeds and more distance.

Higher Launch for Longer Carry from Tungsten-Loaded Standing Wave

Tungsten-Loaded Standing Wave technology in the sole lowers the center of gravity to promote a higher launch angle for longer carry and more ball speed on hits low on the face.

Progressive Center of Gravity for Increased Control

Progressive Center of Gravity technology entails moving the CG location progressively lower in each head from the highest-lofted to the lowest-lofted, promoting higher launch and long carry in the long-irons and increased control in the short-irons.

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