Seco 74015898 Indexable Drill Insert WCMX04 Hx Carbide

Product Description

The SECO 74015898 is a solid carbide indexable drill insert designed for use in indexable insert drills on CNC machining centers and manual drill presses. Built to WCMX04 insert style standards, this trigon-shaped insert features an 80-degree included angle and a 7-degree relief angle, providing a geometry suited for center-cutting and through-hole drilling operations in a range of workpiece materials. The HX grade designation indicates an uncoated solid carbide construction. With a 0.250-inch inscribed circle and a 0.031-inch corner radius, this insert fits standard WCMX04 toolholders commonly found in production and job-shop environments. Machinists and CNC operators handling drilling applications will find this insert a direct fit for compatible tooling systems.

This insert is intended for indexable drill bodies requiring a WCMX04-style center or peripheral insert seat. It is suited for use in light-to-medium-duty drilling operations on steel, cast iron, and similar machinable materials in both production and maintenance machining settings. The uncoated solid carbide construction makes it particularly applicable where coating is not required or where re-grinding and precise geometry retention are priorities. Sold individually per package with a minimum order quantity of 10 units.

Key Features

• WCMX04 insert style with 80-degree trigon geometry for center-cutting drill applications
• Solid carbide construction, HX grade, uncoated for consistent edge performance
• 0.250-inch inscribed circle diameter fits standard WCMX04 toolholder seats
• 0.031-inch corner radius reduces cutting-edge stress at drill entry and exit
• 7-degree relief angle provides clearance suitable for a wide range of workpiece materials
• Compact geometry: 0.157-inch length and 0.094-inch thickness for precise insert pocket fit

Compatibility

Designed as a replacement indexable drill insert for toolholders and indexable drill bodies requiring a WCMX04-style insert seat with an 04 insert size code.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the drill body and insert pocket are clean and free of chips or debris before seating the insert. Use the correct torx or clamping screw specified by the drill body manufacturer and tighten to the toolholder manufacturer's recommended procedure. Never attempt to index or replace inserts while the machine spindle is energized or the machine is in cycle.