Harvey Tool 25512-C3 Solid Carbide Counterbore 3/16 in

Product Description

The HARVEY TOOL 25512-C3 is a solid carbide counterbore designed for precision enlarging and finishing of drilled holes to accept fastener heads and bearing seats. Built with 4 flutes and coated in AlTiN (Aluminum Titanium Nitride) finish, this tool delivers high heat resistance and extended tool life in demanding cutting applications. The 3/16 inch cutter diameter and matching 3/16 inch shank diameter make it a compact, rigid choice for small-diameter counterboring work. Machining professionals and toolroom technicians use this counterbore on CNC machining centers and manual mills where tight tolerances and clean floor finishes are required.

This counterbore is suited for metalworking applications in job shop, manufacturing, and maintenance environments. The AlTiN coating improves performance in ferrous and hard materials, including alloy steels and stainless. With a 3/4 inch flute length and 3 inch overall length, the 25512-C3 handles typical counterboring depths on medium-duty workpieces. It is appropriate for use by machinists and tool and die makers working with small-format components requiring precise fastener seat geometry.

Key Features

• Solid carbide construction for rigidity and wear resistance in metal cutting
• AlTiN coating provides high-temperature resistance and extended cutting life
• 4-flute geometry delivers smooth floor finish in counterbored holes
• 3/16 inch cutter diameter matches 3/16 inch shank for a compact, balanced profile
• 3/4 inch flute length accommodates standard counterboring depth requirements
• 3 inch overall length suits most machining center and manual mill setups

Compatibility

Designed as an OEM-style solid counterbore for use in CNC machining centers and manual milling machines accepting a 3/16 inch shank diameter toolholder or collet.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Secure the 3/16 inch shank in a properly sized collet or endmill holder, ensuring full and even clamping contact before operation. Confirm spindle RPM and feed rate are appropriate for the workpiece material and cutter diameter before engaging the cut. Inspect the cutting edges and coating for wear or chipping before each use and replace the tool if damage is present.