Hertel C.E96.S15-1 Cobalt Reduced Shank Drill Bit Set 5 Pc

Product Description

The HERTEL C.E96.S15-1 is a 5-piece cobalt reduced shank drill bit set covering sizes from 1 inch to 2 inches in 1/4-inch step increments. Built from cobalt high-speed steel with a bright uncoated finish, these bits are designed for general-purpose metalworking where standard HSS tooling falls short. The reduced shank diameter of 3/4 inch allows larger-diameter bits to be chucked in standard drill presses and hand drills without requiring oversized equipment. The 118-degree standard point angle suits most common metal drilling applications. The set ships in a wood storage block for organized bench storage. Total weight is 3.5 pounds.

This set is suited for metalworking and multipurpose drilling tasks in light industrial, maintenance, and fabrication environments. The step-increment sizing from 1 inch through 2 inches makes it a practical solution for machinists, maintenance techs, and pipefitters who need to drill large-diameter holes in steel, iron, and similar materials without investing in a full complement of individual bits. Each bit features a 6-inch overall length and a 3-inch flute length, providing adequate chip clearance for through-hole work in moderate-depth applications.

Key Features

• Cobalt construction for improved heat and wear resistance over standard HSS in ferrous metals
• Reduced shank diameter of 3/4 inch fits standard chucks despite large cutting diameters
• 118-degree standard point angle for general metalworking compatibility
• Size range of 1 inch to 2 inches in 1/4-inch increments covers five common large-diameter needs in one set
• Bright uncoated finish — no coating to chip or peel during high-heat drilling
• Wood block storage keeps bits organized and protected between uses

Compatibility

Designed for use in standard drill presses and hand drills with chucks accepting a 3/4-inch shank. Suitable for metalworking and multipurpose drilling applications requiring large-diameter holes.

Installation Notes

Large-diameter cobalt drill bits should be installed and operated by qualified machinists or maintenance personnel familiar with proper feed rates and cutting speeds for the material being drilled. Always secure the workpiece with clamps or a vise before drilling — never hold by hand. Use cutting fluid or coolant where appropriate to extend bit life, even though the bits are rated for dry use. Inspect the drill press chuck and arbor for runout before use to avoid bit damage or workpiece damage on large-diameter cuts.