Grafalloy PROCUSTOM .370 Tip Graphite Iron Shafts

Grafalloy PROCUSTOM .370 Tip Graphite Iron Shafts

Grafalloy PROCUSTOM .370 Tip Graphite Iron Shafts are designed to give clubmakers maximum versatility when fitting a wide range of players. With a unique combination flex system — R/S and A/L — these shafts allow builders to fine-tune performance by adjusting tip and butt trim profiles. Whether you're building for a junior, senior, or mid-handicap player, the PROCUSTOM delivers adaptability without sacrificing performance or consistency.

The .370 parallel tip design provides a stable platform for trimming to exact specifications, allowing for seamless integration across different iron head styles. Lightweight and responsive, Grafalloy PROCUSTOM .370 Tip Graphite Iron Shafts offer smooth feel, improved launch characteristics, and accessible performance that suits players at all levels. It's a proven go-to shaft for custom builders who value flexibility, fitting range, and reliability in every set.

Can’t find the option you’re looking for? Reach out — we likely carry it or can get it.

IMPORTANT Shipping Details

• Custom-built orders ship in 3–5 business days
• Even expedited shipping follows standard build timelines
• Each order is handled with precision — thank you for your patience!

Need it built?

Add all club components (shaft, head, grip, etc.) to your cart and message us during or right after checkout with your build specs — we’ll assemble your club(s) free of charge. Note: Free builds add 3–5 business days to shipping for custom work.

Grafalloy PROCUSTOM .370 Tip Graphite Iron Shafts Spec Sheet