Hertel 336-001070 Countersink 1/8 in 90 Deg 6 Flute Carbide

Product Description

The HERTEL 336-001070 is a solid carbide countersink designed for precision chamfering and seat preparation in metal and composite materials. Built with a 1/8 inch head diameter and a 90-degree included angle, this tool produces clean, accurate countersinks for flathead fastener seating and deburring operations. The six-flute geometry distributes cutting load evenly, reducing chatter and improving surface finish in tight tolerances. The bright, uncoated carbide construction provides hardness and wear resistance across a range of workpiece materials. Weighing just 0.05 pounds, it is suited for use in tight access areas and small-diameter applications common in precision machining environments.

This countersink is applied in machining operations requiring consistent 90-degree chamfers in alloy steel, cast iron, and glass-reinforced plastic. The 1/8 inch straight cylindrical shank fits standard collets and drill chucks, making it compatible with CNC machining centers, drill presses, and hand-held pneumatic tools. It is commonly used by machinists and tooling technicians for countersinking pilot holes for flathead screws in light fabrication, aerospace component work, and industrial assembly operations where a clean, burr-free seat is required.

Key Features

• 1/8 inch head diameter with matching 1/8 inch straight cylindrical shank
• 90-degree included angle and 45-degree centerline angle for standard flathead fastener seats
• Six-flute design reduces chatter and improves surface finish
• Solid carbide construction with bright uncoated finish for hardness and wear resistance
• Right hand cut for conventional spindle rotation
• Single end, no pilot — provides flexibility across pilot hole sizes
• Rated for use in alloy steel, cast iron, and glass-reinforced plastic

Compatibility

Designed for use in alloy steel, cast iron, and glass-reinforced plastic workpieces. The 1/8 inch straight cylindrical shank fits standard collets and drill chucks rated for that shank diameter.

Installation Notes

Installation and use should be performed by qualified machinists or tooling technicians familiar with rotating cutting tool safety. Secure the shank fully in the collet or chuck before operation and verify spindle speed is appropriate for the tool diameter and workpiece material. Always power down and lock out the machine before changing or inspecting tooling. Do not exceed the tool geometry's intended material applications to avoid premature wear or breakage.