Products for bench top machinists | LittleMachineShop.com

Boring Bar, 3/8" Indexable, HSS Triangle Inserts, A R Warner Kit #12

Boring Bar, 3/8" Indexable, HSS Triangle Inserts, A R Warner Kit #12 - Main image
$92.97 $149.95 In stock

This Arthur R. Warner Co. precision tool holder kits use high speed steel or carbide inserts. These are production quality tool holders that are made in the USA. LEARN MORE

The Arthur R. Warner Co. is a family-owned American manufacturer of high speed steel products with specialization in cutting, shaping, pre-grinding, heat treating, and finish grinding of premium grades of flat high speed steel. Their quality is excellent and LittleMachineShop.com is proud to carry their products.

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Customer Reviews (5.0 / 5 · 5 reviews)

Julian ★★★★★

I've been using this kit for a few weeks now, and the HSS triangle inserts cut cleanly through mild steel without chattering. The 3/8" shank fits securely in my tool post.

Joshua ★★★★★

The indexing mechanism locks in tight right out of the box, which made swapping to a fresh triangle edge quick and hassle-free. I’ve been using it on a manual lathe for light profiling, and the HSS insert holds an edge noticeably longer than my old carbide bits.

Evelyn I. ★★★★★

Cut through some hardened steel on my lathe today and the HSS inserts held their edge way better than the cheap import sets I've been using. This kit is solidly built and the insert indexing was precise right out of the box.