Tour Edge Hot Launch E521 Irons Specifications

Full factory loft, lie and length chart for the Tour Edge Hot Launch E521 irons, 2020–2021.

Years produced: 2020–2021
Category: Super Game Improvement Irons
Construction: hollow-body iron-wood with perimeter weighting, Houdini Sole and a super-shallow face
Material: stainless steel hollow body
Set makeup: 3–AW

Loft, lie & length chart

Standard men's steel-shaft specifications for the Tour Edge Hot Launch E521 irons.
Club	Loft (°)	Lie (°)	Length (in)
3	20	60	39.25
4	23	60.5	38.75
5	26	61	38.25
6	29	62	37.75
7	32	62.5	37.25
8	36	63	36.75
9	40	63.5	36.25
PW	44	64	35.75
AW	49	64	35.5

Lofts and lies are the factory standard build. Individual clubs may differ if they have been bent, re-shafted or re-gripped during their life.

About the Tour Edge Hot Launch E521

The Hot Launch E521 Iron-Wood is the first Extreme Spec (E-range) model in Tour Edge's value line, announced in October 2020 alongside the C521 and sold as the 2021-season line. It is a hollow-body iron-wood: metalwood-style perimeter weighting, a super-shallow face, slice-fighting offset with heel weighting, and the patented Houdini Sole that moves mass low and deep while cutting turf drag. Lofts are deliberately weak for the category — a 32-degree 7-iron — because the distance recipe is metalwood-style launch rather than strong lofts. Stock shafts were Mitsubishi Chemical's super-light FUBUKI graphite at 55 to 60 grams, with the KBS Max 80 as the steel option; each club shipped with a headcover.

Stock shafts

Mitsubishi Chemical FUBUKI — graphite
KBS Max 80 — steel

Related models

Frequently asked questions

What is the loft of a Tour Edge Hot Launch E521 7-iron?

The Hot Launch E521 7-iron has a loft of 32 degrees, a lie of 62.5 degrees and a length of 37.25 inches.

Why are the Hot Launch E521 lofts weaker than the C521's?

The E521 is a hollow-body iron-wood aimed at slower swing speeds: its distance comes from metalwood-style face flex and an extremely low, deep centre of gravity, and the weaker lofts — 32 degrees at the 7-iron against the C521's 31 with a much weaker ladder above it — help those players actually get the ball airborne.

Do Tour Edge E521 iron-woods come with headcovers?

Yes, every E521 iron-wood shipped with its own headcover, reflecting its hybrid-like construction.

What shafts did the Hot Launch E521 come with?

The stock build used Mitsubishi Chemical's super-light FUBUKI graphite metalwood shafts at 55 to 60 grams depending on flex, with the KBS Max 80 as the stock steel option.

Finding a used set

The Tour Edge Hot Launch E521 ran from 2020 to 2021 and is no longer in production, so the used market is the only source. Search eBay, 2nd Swing, Golf Avenue and the PGA Tour Superstore trade-in listings, and check the loft and lie against the chart above before buying — sets this age have often been bent from standard.

Data compiled from:

touredge.com/hotlaunche521iron-wood official product page, archive.org snapshot of 28 October 2020 — the manufacturer specification chart image (e521ironwoodspecs.png on Tour Edge's Wix CDN, read directly) giving loft, lie and shaft length for the #3 iron through AW, plus the 55-60 gram Mitsubishi FUBUKI stock graphite and KBS Max 80 stock steel shaft copy, the Lamkin Z5 grip, right- and left-hand availability, the included headcover and the women's-length-minus-1-inch note.
The Houdini Sole, hollow-body perimeter weighting, slice-fighting offset and super-shallow face design points are taken from the same official page's technology sections.
Year note: the Hot Launch 521 series was announced in October 2020 and marketed as the 2021 line; year_introduced records the announcement year per the schema convention. Tour Edge does not publish offset figures, bounce or swing weight for this model, so those keys are omitted.

Last reviewed 2026-07-29. Spot an error? [email protected]