Sandvik Coromant 7357599 Corodrill 870 Replaceable Tip Drill

Product Description

The SANDVIK COROMANT 7357599 is a solid carbide replaceable tip drill insert from the CoroDrill 870 series, designed for high-precision solid drilling in production environments. The tip measures 11.11mm (0.4374 inch) in cutting diameter and features a 142-degree drill point angle with a TiAlN coating applied via PVD process. It carries manufacturer grade 4334 with a fine grain carbide substrate, delivering consistent hole quality and tool life across a broad range of workpiece materials. Licensed machinists and CNC operators install this insert as a precision-fit replacement in compatible CoroDrill 870 holders.

This replaceable tip is suited for solid drilling applications in both horizontal and vertical machining centers, as well as turning centers with driven tooling. Primary workpiece material compatibility spans steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium, corresponding to ISO material codes P, M, K, N, and S. The PM insert geometry and regular helical flute design support stable chip evacuation in through-hole and blind-hole operations at production feed rates.

Key Features

• 11.11mm (0.4374 inch) cutting diameter with 7/16 inch fractional equivalent
• 142-degree drill point angle for standard point geometry entry
• TiAlN coating via PVD process for elevated heat resistance and extended wear life
• Fine grain solid carbide substrate, manufacturer grade 4334
• 2-flute helical design with PM geometry for consistent chip control
• Clamp-style insert holding in insert seat size 8 CoroDrill 870 holders
• Compatible with ISO material groups P, M, K, N, and S workpieces

Compatibility

Designed for use with CoroDrill 870 series replaceable tip drill holders accepting insert seat size 8. ISO number 870-1111-8-PM 4334 identifies the precise holder-to-tip pairing required for proper fit and runout performance.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. The machine spindle must be fully stopped and the tool holder secured before tip removal or installation. Use the manufacturer-specified clamping key or torque tool for the insert clamp; do not overtighten by hand. Inspect the insert seat for chips or contamination before seating the new tip to ensure proper contact and runout accuracy.