Question

9.62K viewsAugust 1, 2025

Bill 240 July 31, 2025 0 Comments

Wanted to update a set of my irons. The iron that I had been playing is a forged model with a weight in the middle of the club. Terrific feel and my favourite model but the lofts were tradional. Memory doesn’t serve the model of that iron at the moment, but it was exceptional.
I pulled the Nippon shafts to reshaft a set of TS-1. I didn’t notice at the time but the clubs ended up being a shade longer, about 2/3 of an inch. The bore depth of the TS-1 is 1.375 inches. Hosels were clean.
Im wondering if the hosel depth of the older model was more than the hosel depth of the TS-1 ?
Thanks all,

Bill

Britt Lindsey Answered question August 1, 2025

1 Answer

Answer 1 · 2025-08-01T09:12:45+00:00

Bore depth on irons is not the measurement to be concerned with, it’s the bottom of the bore to the ground line. That measurement on the TS1’s is approximately .900″. Usually older irons, and even other modern irons, we have found, have a longer measurement than that. However, if the TS1’s you installed the shafts in are 2/3″ longer in playing length after installing them, that would tell me the measurement was shorter on your old irons than the .900″. That’s the only way the lengths could be longer in the TS1’s, assuming the hosels were clear and clean and the shafts were installed to the bottom of the bore.

Britt Lindsey

Ah! That’s making sense now. The older iron is the KE4 forged; so good I have two sets and if I find any more I’ll buy them.
I’ll take one of the TS-1 apart and do some measurements.
The KE4 forged are the ones with the single weight in the back correct? if so does it matter if they are used?