The most advanced set of Single-Length Irons in the golf industry.
Proper clubface alignment at address is everything when it comes to dropping approach shots on the pin. Alignment being off by only 1º or 2º either way means adding an extra 8 to 15 feet to your birdie putt. The Blackstone's bright white scoring lines against the black PVD background makes club-face alignment exact and automatic at address.
With a set of Blackstones you will find a lot more birdies on the golf course.
Custom fitted based upon your wrist-to-floor measurement (see below for measurement instructions).
Includes headcovers and distance clips.
Black PVD (Physical Vapor Deposition) finish for zero glare at address.
PVD finish produces a harder surface for extra ball compression and greater distance.
Bright white scoring lines for precise clubface alignment at address.
Loft angles instead of club numbering for precise distance control.
State of the art precision face and sole grinding.
Deep undercut rear cavity produces a low center of gravity for maximum trajectory and distance.
Identical swing-weight and moment of inertia (MOI) throughout the set.
Shafted with our proprietary Black Steel shafts for zero glare and extreme tour performance.
All human beings share the same skeletal, muscle, tendon, and joint functions and from a mechanical standpoint are the same regardless of height or sex. Non-mechanical differences arise in custom fitting however, for instance: the height of a bicycle seat needs to be greater for a taller person than a shorter person even though the mechanical design of the bicycle remains the same. By the same token there is only one true fitting variable in the building of golf clubs and that is club length. Based upon your wrist-to-floor measurement we adjust your club length to correspond to the lie angle of our club-heads in order to ensure a proper fitting.
Taking your Wrist-to-Floor Measurement:
The wrist-to-floor measurement should be taken while standing on a hard surface.
Wear jogging/gym shoes or street shoes (not golf shoes).
Stand with your back against the wall at strict military attention. Place your shoulders and head against the wall, your feet together, and your arms rigid and straight down at your sides.
Hold a pencil in your right hand (right handed golfer). Back your arms against the wall and then take the pencil and make a mark where your left wrist joint hits the wall. Just the opposite for a left-handed golfer.
Measure from this mark to the floor.
Important: Do not round-up the measurement to the next higher inch increment. For instance, if your measurement is 34 and 7/8″, do not round up to 35″.
One Iron Golf Club Lengths
Do not order based upon what you consider to be your favorite iron (ie: #7 iron), and do not use that corresponding wrist-to-floor measurement when placing your order. When ordering you need to specify your actual wrist-to-floor measurement to ensure a proper fitting. This chart reflects club length based upon our club-head lie angles. Consequently, our fitting process does not apply to any other brand.
For the taller golfer: based upon your wrist-to-floor measurement you may be concerned that your irons would be a typical #3 or #4 iron club length; however, do not compare your measurement to your current #3 or #4 iron. The lie angles of your “long” irons are much flatter than ours which, at your size, requires you to bend over excessively and reach out for the ball at address. The club head lie angle of our irons is 63.5º which is far more upright and allows you, for the first time, to stand upright and much closer to the ball at address resulting in the ideal upright swing posture and swing plane. The taller golfer benefits the most from our fitting formula since they have never played golf clubs that have even come close to fitting them properly. The result being that they have had to develop a very inefficient posture and swing where they are bent over excessively and reaching way out for the ball with every iron in the bag.
How Does the Wrist-to-Floor Measurement Work?
It is based upon trigonometry. At the point of ball impact in the downswing, your wrist, the ground, and the club-head, form a right triangle. Assuming an ideal swing posture, there is a non-linear mathematical relationship between your wrist-to-floor measurement while standing at attention and your wrist-to-ground distance at ball impact.
The club-head lie angles are known for the irons and fairway woods as well as the length of one side of the right triangle based upon your mathematically factored wrist-to-ground distance at impact. This gives us the measurement of two angles and the length of one side. We then use trigonometry to solve for the hypotenuse or club length. This is somewhat oversimplified as we factor in shaft deflection and numerous other factors. The fitting formula that we developed produces the ideal golf club length for anyone regardless of height or arm length.
You can check out using either a PayPal account or credit card. If you would rather pay with a check or money order contact us for instructions through the Contact page of this website. This option is available to USA residents only.
Since all orders are custom built your credit card will be charged when production begins (within 24 hours).
We only ship by FedEx. On the shipping date you will receive an email from FedEx with your tracking number.
Ohio residents will be charged 7.25% sales tax.
We ship world-wide using FedEx exclusively.
International shipping charges include brokerage/clearance fees.
Import duties and taxes are the responsibility of the customer and will be collected upon delivery. If these taxes are not paid your order will be shipped back to us and we will have no alternative but to deduct from your refund the cost of shipping both ways and the import duties/taxes charged to us. Check with your local customs office for estimated duties/taxes.
Fully try-out our golf clubs at your home course and at your convenience for a full month. We feel that to truly evaluate a set of golf clubs to determine if they are right for you takes time; and hence, our 30-day return policy (does not include Used/Demo golf clubs, Accessories, or Special Orders). To our knowledge we are the only golf club manufacturer in the entire industry who offers a full money-back return policy on golf clubs after they have been played which should tell you volumes about our commitment to our customers.
If you are not completely satisfied you may return your golf clubs within 30-days of receipt for a full refund of your original purchase price (no hidden fees or re-stocking charges). A return authorization must be obtained before we can accept a return of merchandise. Contact us for this authorization on-line through the Contact page of this website. Shipping/handling charges are not refundable. All contents listed on the original Packing Slip must be included for a full refund. Return shipping charges are the responsibility of the customer. Our return policy is only valid once per customer. Any alterations to the original golf club voids this policy. Refunds on international returns will be held for ten business days for possible assessment of Customs/Duty charges. If assessed they will be deducted from your refund.
We warrant our golf clubs to be free of defects in material and workmanship for a period of one year following the original ship date. We will, without charge to the original purchaser, repair or replace the club if it proves to be defective during normal use within this period (normal use does not include misuse or abuse and the associated damages ie: dents on the top, side, rear, or sole of a wood club-head). This does not cover grip or cosmetic wear and tear due to normal usage. Any alterations to the original golf club voids this warranty.