Iscar 3335771 Replaceable Drill Tip 0.8747 in IC908

Product Description

The ISCAR 3335771 is a replaceable carbide drill tip designed for use with compatible H3P-series modular drill bodies. Manufactured from solid carbide with a submicron grain material grade, this tip carries a TiAlN coating applied via PVD process for enhanced wear resistance and thermal stability. The tip features a 135-degree point angle, three helical flutes, and a web-thinned geometry to reduce thrust forces and improve chip evacuation. It is installed by clamping into a seat size 22 interface and conforms to ISO 13399 standards. Licensed machinists and tooling technicians install this type of tip in production and job-shop environments where repeatable hole quality and fast tip changes are required.

This drill tip is suited for hole-making and drilling operations in steel and cast iron as primary workpiece materials, with secondary capability in stainless steel, superalloys, titanium, and hard materials. The IC908 grade and TiAlN coating make it well-matched to interrupted cuts and high-speed drilling in ferrous materials. It fits the H3P modular drill system and is identified by ISO number H3P 222-IQ. Typical applications include through-hole and blind-hole drilling on CNC machining centers and turning centers where indexable drill tip systems are used to minimize downtime.

Key Features

• Solid carbide submicron grade construction for edge stability and long tool life
• IC908 manufacturer grade with TiAlN PVD coating for heat and wear resistance
• 135-degree point angle with web-thinned geometry to reduce entry thrust
• Three helical flutes for efficient chip removal in steel and cast iron
• Clamp-style seat size 22 interface per ISO 13399 for repeatable indexing
• Rated for primary use in steel and cast iron; secondary use in stainless, superalloys, titanium, and hard materials

Compatibility

Designed for use with H3P-series modular drill bodies using a seat size 22 interface, identified by ISO number H3P 222-IQ. Compatible drill bodies must accept the H3P insert geometry and clamp-style holding method.

Installation Notes

Installation and indexing of replaceable drill tips should be performed by qualified machinists or tooling technicians following the drill body manufacturer's torque and clamping procedures. Ensure the machine spindle is fully stopped and the tool is removed from the machine before changing tips. Clean the seat and clamping surfaces before seating the new tip to ensure accurate location and secure clamping. Follow applicable shop safety standards and machine tool manufacturer guidelines during tool changes.