T&T: BSP die

[Larry N. Brown]

Trying to install  oil bypass systems on my two Yanmar mains and my Yanmar
powered Kubota genset. Couple weeks ago I asked a question about BSP to NPT
adapters and got several good suggestions but I couldn't find them in SS. I
ordered 1/8" SS NPT nipples from McMaster-Carr and they arrived yesterday.
Borrowed a 1/8" BSP tap and die from a friend but then the trouble began. I
need BSP tapered. Looks like the tap is 1/8" tapered but when I cut down the
nipple with the die, it won't thread into the block. I think the die is BSPP
instead of BSPT.

Any suggestion of a supplier? Tried MC but they want $34 for it. Hate to waste
the money on 3 cuts.

Regards,

Larry and Teri
M/V Cigano, 47' Prairie Sundeck Cruiser
Lying: 64 Cypress Road
          Covington, LA