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Boring Bar, 3/8" Indexable, 80 Deg HSS Diamond Inserts, A R Warner Kit #13

Boring Bar, 3/8" Indexable, 80 Deg HSS Diamond Inserts, A R Warner Kit #13 - Main image
$112.46 $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 minimum boring diameter is 0.330".

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 (4.4 / 5 · 5 reviews)

William ★★★★★

The indexing mechanism clicks solidly into each position, making insert swaps fast and repeatable. Paired with a steady feed, the 80° geometry leaves a surprisingly clean bore wall in mild steel.

Grace ★★★★★

Finally, a boring bar that holds its edge through multiple passes on stainless without chattering. The 3/8" shank fit my holder perfectly and the inserts locked in tight with no play.

Ella H. ★★★★★

The 80-degree HSS diamond inserts cut through steel like butter, and the 3/8" bar is perfectly rigid for precise boring. I'm really impressed with how clean the finish is on every pass.