Products for bench top machinists | LittleMachineShop.com

Insert, TPGH-32.51 Carbide

Insert, TPGH-32.51 Carbide - Main image
$8.96 $11.95 In stock

TPGH-32.51 carbide insert is a 60° triangle with a 11° relief. The center hole is a 70°-90° single countersink, and a single-sided chip breaker.

It has an inscribed circle (IC) of 0.375" (3/8"), a thickness of 0.156" (5/32"), and a corner (nose) radius of 0.0156" (1/64").

The insert is designated TPGH32.51 (ANSI) or TPGH09T304 (ISO).

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 (4.6 / 5 · 5 reviews)

Sebastian T. ★★★★★

The 60° triangle with 11° relief cut through my stainless steel like butter, and the single-sided chip breaker kept the mess to a minimum. It’s a bit pricier than some others, but the precision is worth it for my setup.

Scarlett ★★★★★

Installed these on my lathe yesterday for a finish pass on some mild steel; the chip breaker cleared chips nicely without buildup. The 3/8" IC fit my tool holder perfectly.

Harper E. ★★★★★

Ground a batch of 4140 with these TPGH-32.51 inserts and the single-sided chip breaker cleared chips better than expected. The 11° relief angle worked nicely on my tool holder without any fitment issues.