★ LIMITED TIME OFFER: Get 5% Off EVERYTHING When You Checkout with Code: THESALE ★



Aerotech SteelFiber i70cw Iron Tapered Shaft (.355 tip)

Regular price $53.00 free shipping w/ $49+

Get 5% off EVERYTHING when you checkout with code: THESALE (restrictions may apply >See full details)

WHAT YOU NEED TO KNOW

  • Combination graphite with steel construction
  • Designed for players of all levels
  • Reduced vibrations with high accuracy
  • Weight ranges of 70g - more weight ranges here.
  • Tapered tip - Parallel tip option here
  • High modulus core for strength and power

 

SPECIFICATIONS

SHAFT FLEX LENGTH WEIGHT TORQUE TIP OD BUTT OD PARALLEL TIP BEND POINT
SteelFiber i70cw* Stiff
40"-36.5"
70gr 2.8-3.4 .355" .600" n/a Mid
SteelFiber i70cw* Regular
40"-36.5"
70gr 2.8-3.4
.355"
.600"
n/a Mid
SteelFiber i70cw* Senior
40"-36.5"
70gf 2.9-3.5
.355"
.600"
n/a Mid

 

*All Taper Tip shafts have Constant Weight. The "cw" notation is shown on the logo for all i70 taper tip shafts.

 


STEEL & GRAPHITE?
AEROTECH STEELFIBER GIVES YOU THE BEST OF BOTH WORLDS.

Steelfiber shafts by Aerotech allow you to get the best of both worlds: Get the power of graphite shafts with the stability of steel shafts.


At the core of the SteelFiber shaft is filament-wound carbon fiber. The filament winding process yields a seamless and incredibly uniform bending golf shaft. The high strength-to-weight ratio of carbon fiber delivers the desired stiffness and strength properties at lighter weights than steel, and the lightweight properties of graphite increase club head speed and promote greater distance. In addition, the vibration dampening properties of graphite reduce the risk of injury and player fatigue during the round.
 

The steel fiber material is produced using a bundle drawing process that utilizes multiple reductions in the diameter of stainless steel wire. Once the wire becomes thin enough, 1,000 individual wires are bundled together and placed inside an iron tube that is further reduced until each individual steel wire is 8 microns in diameter. Each 8 micron steel filament is approximately 1/10th the diameter of a human hair. Finally, 3,000 individual filaments are combined and spun onto spools.


SteelFiber Hoop Strength vs Steel:

Comparing the hoop strength of a SteelFiber shaft versus a steel shaft under the same load is equally impressive. The SteelFiber shaft has superior hoop strength to even the steel shaft giving it better stability than the benchmark of the industry.

 

Effect of SteelFiber on Wall Thickness:

Because the density (weight) of the steel fiber is 5x that of graphite, the shaft weight can be manipulated with 1/5th the amount of material which helps minimize wall thickness. This eliminates the ‘boardy’ feel often associated with thicker walled composite shafts promoting a more solid feel through impact.


Perimeter Weighted Golf Shaft

As the world’s first perimeter-weighted golf shaft, SteelFiber adds more stability and forgiveness with every shot. The steel fiber around the perimeter creates a greater density (weight) on the shaft’s surface that moves the shaft wall’s center of gravity (CG) outward, thus increasing the shaft’s Moment of Inertia (MOI).

WHAT YOU NEED TO KNOW

  • Combination graphite with steel construction
  • Designed for players of all levels
  • Reduced vibrations with high accuracy
  • Weight ranges of 70g - more weight ranges here.
  • Tapered tip - Parallel tip option here
  • High modulus core for strength and power

 

SPECIFICATIONS

SHAFT FLEX LENGTH WEIGHT TORQUE TIP OD BUTT OD PARALLEL TIP BEND POINT
SteelFiber i70cw* Stiff
40"-36.5"
70gr 2.8-3.4 .355" .600" n/a Mid
SteelFiber i70cw* Regular
40"-36.5"
70gr 2.8-3.4
.355"
.600"
n/a Mid
SteelFiber i70cw* Senior
40"-36.5"
70gf 2.9-3.5
.355"
.600"
n/a Mid

 

*All Taper Tip shafts have Constant Weight. The "cw" notation is shown on the logo for all i70 taper tip shafts.

 


STEEL & GRAPHITE?
AEROTECH STEELFIBER GIVES YOU THE BEST OF BOTH WORLDS.

Steelfiber shafts by Aerotech allow you to get the best of both worlds: Get the power of graphite shafts with the stability of steel shafts.


At the core of the SteelFiber shaft is filament-wound carbon fiber. The filament winding process yields a seamless and incredibly uniform bending golf shaft. The high strength-to-weight ratio of carbon fiber delivers the desired stiffness and strength properties at lighter weights than steel, and the lightweight properties of graphite increase club head speed and promote greater distance. In addition, the vibration dampening properties of graphite reduce the risk of injury and player fatigue during the round.
 

The steel fiber material is produced using a bundle drawing process that utilizes multiple reductions in the diameter of stainless steel wire. Once the wire becomes thin enough, 1,000 individual wires are bundled together and placed inside an iron tube that is further reduced until each individual steel wire is 8 microns in diameter. Each 8 micron steel filament is approximately 1/10th the diameter of a human hair. Finally, 3,000 individual filaments are combined and spun onto spools.


SteelFiber Hoop Strength vs Steel:

Comparing the hoop strength of a SteelFiber shaft versus a steel shaft under the same load is equally impressive. The SteelFiber shaft has superior hoop strength to even the steel shaft giving it better stability than the benchmark of the industry.

 

Effect of SteelFiber on Wall Thickness:

Because the density (weight) of the steel fiber is 5x that of graphite, the shaft weight can be manipulated with 1/5th the amount of material which helps minimize wall thickness. This eliminates the ‘boardy’ feel often associated with thicker walled composite shafts promoting a more solid feel through impact.


Perimeter Weighted Golf Shaft

As the world’s first perimeter-weighted golf shaft, SteelFiber adds more stability and forgiveness with every shot. The steel fiber around the perimeter creates a greater density (weight) on the shaft’s surface that moves the shaft wall’s center of gravity (CG) outward, thus increasing the shaft’s Moment of Inertia (MOI).

LIMITED TIME OFFER: FREE Standard Express US D2D - 2 to 4 business days (2pm PT cutoff)

 

SHIPPING CARRIERS & DELIVERY TIMES

Shipping Within the Continental US Cutoff Time
(on regular business days)**
Delivery Cost

Standard Express US D2D* (> $49+ orders)

2pm PT 2-4 business days FREE (no code needed)
USPS First Class Mail (< $49 orders) - Note: longer delivery times!* 2pm PT 7-10 business days
$3.75
Expedited US D2D*
4pm PT 2-4 business days $7.50
USPS Priority Mail  2pm PT
2-4 business days
$7.50
Fedex Ground 2pm PT 1-7 business day $12
2-day Air US D2D*
4pm PT 2 business days $14
Fedex Express Saver 4pm PT 2-3 business days $17
Fedex 2-day Air 4pm PT 2 business days $39
Fedex Overnight (1 day) 4pm PT
1 business day
$49
Overnight Saturday Delivery Friday 4pm PT On Saturday $69

 

PROCESSING (CUTOFF) TIMES

All orders for in-stock and non-assembled items (like shafts/clubs), will ship according to the cutoff time on regular business days. If there are any unforeseen delays, we will reach out to you by e-mail or phone to confirm the additional processing time. For assembled items, please allow an additional 3-5 business days to process and prepare your order before shipping.

 

POSSIBLE SHIPPING DELAYS

  • If you selected "USPS First Class Mail", please note your order may take up to 10 business days to arrive.
  • Please allow longer times for your order to arrive in remote areas and during sale periods. Delivery times may also be extended during US and international holidays
  • If the address is determined to be undeliverable by the carrier, the package will not be re-shipped.

*"Standard Express US D2D", "Expedited US D2D", and "2-day Air US D2D" shipping services may be with either USPS or Fedex. If you need a specific carrier, please choose the desired shipping option provided by that carrier (which may require additional costs). PO box delivery addresses must have USPS carrier selected as the shipping option. 2-day Air service not available for PO box addresses, Guam, Puerto Rico, Virgin Islands, Northern Marina Islands, and Armed Forces territories. USPS First Class Mail is not recommended for customers who need their orders delivered within 5 business days. Please select a faster method/carrier (or contact us if you have questions).

**For non-personalized and non-assembled products, cutoff time on business days refers to Monday through Friday, and on non-US holidays. For orders placed on weekends (or Friday after the cutoff time), they will ship on the following business day.

If you selected a shipping method with determined delivery dates, such as "2-Day Air Shipping", the delivery date will be counted as the Nth day starting the following business day after the ship date. For example, if you order ships on a Friday after the cut-off time with 2-Day Air, your order will arrive on Wednesday (assuming no holidays in between).

 

IMPORTANT: All delivery times subject to in-stock products and deliverable addresses. For assembled shaft and club orders, please allow an extra 3-5 business days to process your order before shipping.

 

Free shipping offer only applies to orders delivered in the Continental US. Customers outside the US, please email us at help@grips4less.com and we'll provide you with a special shipping discount too! :) Offer may not be combined with other discount codes.

 

WHAT YOU NEED TO KNOW ABOUT SHIPPING

 

MAKE SURE YOU ARE ABLE TO RECEIVE PACKAGES FROM THE POST OFFICE
The default shipping carrier, unless otherwise specified by the customer-selected shipping option during checkout, will be USPS or Fedex. If your address is not deliverable by USPS, please select a Fedex shipping option. If your package is returned by the post office, we will not re-ship it unless additional postage is paid.

 

HOW CAN I TRACK MY PACKAGE?
Once your order ships, you will receive an automated email with the tracking link from our shipping carrier. Please allow 24 hrs for the tracking link to be updated correctly. For orders shipped with First Class Standard Shipping or some shaft orders, there will be no en-route updates aside from the initial carrier pick-up and final delivery update.

 

WHERE WILL MY ORDER SHIP FROM?
We ship every order from our 30,000 square foot warehouse in sunny Southern California. Our most common shipping carrier is with USPS (US and international), Fedex (US and International) and DHL (international).

 

DO YOU SHIP INTERNATIONALLY (OUTSIDE THE US)
Yes, we do!  We offer competitive weight-based shipping rates with DHL (3 business days), USPS Priority (5-7 business days), Fedex International Economy (3-5 business days) and Fedex International Priority (1-2 business days) to almost country outside the US. 

Please note all prices are in $USD unless otherwise stated. And with some international orders, there may be additional duties/taxes based on YOUR COUNTRY'S regulations that you will be responsible for.  

To find out your international shipping rate, please add your items to the Cart and begin the checkout process. After entering your shipping address, you will see a selection of shipping carriers and their respective costs depending on the service you select. Or contact us by e-mail with your full shipping address, and the items/qtys you'd like to order, and we can provide some competitive shipping quotes for you. 

 

If you have any questions, feel free to contact us!


Customer Reviews

Based on 20 reviews
90%
(18)
10%
(2)
0%
(0)
0%
(0)
0%
(0)
D
D.R.

Aerotech SteelFiber i70cw Iron Tapered Shaft (.355 tip)

J
J.H.

Great service and fast shipping. Thx

J
J.C.
Service

Fantastic servic and communication

H
H.
Great shaft

This shaft has really helped me lower the flight with my 3iron and its so easy to hit. I definitely have gained 3-6 yards of carry just with the switch to this graphite styled shaft.

J
J.R.
Shafts aerotech

Great transaction. Outstanding communication with Carol Suh. Fine company to do business with.

Questions & Answers

Ask a Question
  • i am interested in the i70cw stiff shaft for my iron set 4-pw, however I am 5'8'' so I need them -1.25, can I order this way from you? or should I just use a #5 shaft in my 4 iron, so it's 1 inch shorter, thus order the 5-pw (2) shafts, the nine and the PW would both use a PW shaft?

    The i70cw shafts, once installed, are around 2” over standard playing length depending on the depth of the hosel. In almost all cases the shafts will need to be butt trimmed. In your case, you would need to butt trim at 3” or more to attain his playing length. As you mentioned, you could install the 5i shaft in the 4i and so on. This is called a hard step and makes the shaft play about 1/3 flex stiffer. Regardless of a standard installation or a hard step, the shafts will still need to be butt trimmed. We do not perform any shaft trimming. Let us know if you have any additional questions!