Products for bench top machinists | LittleMachineShop.com

Insert, TPMW-1.81.5.5 HSS

Insert, TPMW-1.81.5.5 HSS - Main image
$8.51 $13.95 In stock

TPMW-1.81.5.5 insert made from T-15 high speed steel, combine the advantages of high-speed steel cutting tools with the convenience of indexable tooling.

Insert is a 60° triangle with a 11° relief. The center hole is a 40°-60° single countersink, and there is no chip breaker.

It has an inscribed circle (IC) of 0.21875" (7/32"), a thickness of 0.094" (3/32"), and a corner (nose) radius of 0.008" (1/125").

The insert is designated TPMW1.81.5.5 (ANSI) or TPMW090204 HSS (ISO). 

This high-quality insert is made in America by the Arthur R Warner company.

Inserts are sold individually—no need to buy a pack of 10 inserts.

*NOTE: Make sure you get the correct inserts and retaining screws for your indexable turning tools. Our chart of indexable inserts shows which inserts and which screw to use with each of our indexable tools.

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Customer Reviews (5.0 / 5 · 5 reviews)

Ella F. ★★★★★

The 11° relief on this T-15 HSS insert makes for noticeably cleaner cuts in my lathe work. I’ve swapped out my carbide for these on softer metals and they hold an edge longer than I expected.

Evelyn ★★★★★

Cutting through some tough stainless steel today and this triangular insert held its edge noticeably longer than the HSS bits I've used before. The 11° relief really helps clear chips in deep cuts.

Grace ★★★★★

Honestly, I was a little skeptical about indexable HSS, but the 11° relief makes these cut noticeably freer than I expected. They hold an edge well on mild steel, though I wouldn't push them on anything harder.