Sunnen shotgun honing tool

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Ive seen a guy on Youtube using what he called a Shotgun honing tool made by Sunnen.Does anyone know of this particular piece of kit and where can they be got.I looked on the Sunnen webpage but I dont see anything on shotgun honing.Thanks in advance.

 

[fourwinds]

Ive used them, they are a fantastic tool. I believe you can purchase direct from Sunnen. They probably do not refer to the unit as a "shotgun" hone, but rather by range of sizes or diameters.

 

[sjk]

Fergal,
Sunnen has been around since Adam and Eve and have been tops in honing, lapping on OD/ID's. I'm sure that if directions are followed you should have better than average results. They also make laps that can achieve dimensions to .00001 thus enabling a Hoke block finish,V2)LOL
John

 

[gamma]

Thanks guys,for your help.