Insert, APKT-1003 Square Shoulder

APKT1003 Square Shouldered carbide coated insert. Shape is an 85-degree parallelogram with an 11-degree relief. The center hole is a double countersink and there is a single-sided chip breaker.

It has an inscribed circle (IC) of 0.26" (17/64"), a thickness of 0.137", and a corner radius of 0.0156" (1/64").

This insert is grade XAF798 which is a combination of 2-4 um nc-TiAIN coating and ultra-fine carbide substrate of high strength and toughness.

It is suitable for milling from light to medium load and bore machining of all kinds of materials, turning of stainless steel from finishing to semi-finishing and roughing turning of high-temperature alloys. Also suitable for finishing operations under unstable cutting conditions with a light cutting force; and works better for intermittent cutting by providing a wide cutting zone for steel materials.

This is the correct insert for the LittleMachineShop.com indexable end mills: 5428, 5429, 5430, and 5929.

*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.

Carbide cutting tools are a hard composite material , primarily tungsten carbide, bonded with cobalt. They can withstand extreme temperatures (up to 1,000° C) and heavy mechanical loads without losing their hardness.

Many of our carbide inserts are coated, typically with TiN (Titanium Nitride). This coating reduces friction and improves wear resistance.

Carbide indexable inserts save money since only the insert, not the entire cutting tool, needs to be made of carbide. However, when compared to solid carbide or high-speed steel (HSS), they are slightly less rigid. They can be prone to cutting pockets in your stock if the edge breaks. It is this quality which drives many of our customers to our T-15 high-speed steel made in the USA.

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.