Products for bench top machinists | LittleMachineShop.com

Grooving & Cut-Off Tool, 3/8" Indexable HSS Inserts, A R Warner Kit #21

Grooving & Cut-Off Tool, 3/8" Indexable HSS Inserts, A R Warner Kit #21 - Main image
$129.47 $184.95 In stock

This Arthur R. Warner Co. precision tool holder kits use T15 high speed steel or carbide inserts. These are production quality tool holders that are made in the USA. LEARN MORE

This Arthur R. Warner Co. indexable cut-off and grooving tool has a 0.375" shank and is 4.5" long.

The maximum cutting depth of the groover inserts is approximately 0.25".

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.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.8 / 5 · 5 reviews)

Ellie ★★★★★

The T15 HSS inserts cut through 3/8" stock like butter, and the indexing feature made swapping worn edges quick. This holder feels solid and precisely ground, so setup was accurate right out of the box.

Steven ★★★★★

Picked this up for some door channel work and the T15 HSS inserts cut through the aluminum like butter. The indexing mechanism clicks into place precisely, making insert swaps quick and hassle-free.

Amelia D. ★★★★★

The 3/8" indexable inserts are a huge time saver—they swapped out in seconds when I hit a stubborn weld. Cuts clean and stays sharp through heavy use.