Hertel 84024025 Cobalt Drill Bit 3/16 in 135 Pt 1/4-28

Product Description

The HERTEL 84024025 is a cobalt threaded shank drill bit designed for drilling into high-tensile strength materials. It measures 3/16 inch (0.1875 inch) in diameter with an overall length of 2.125 inches and a flute length of 1.125 inches. The 135-degree split point reduces walking on entry and minimizes the need for a center punch. A web-thinned, tapered web configuration lowers thrust requirements during drilling. The oxide coating provides added surface hardness and basic corrosion resistance. This bit is built for right-hand cutting with a regular spiral flute pattern and is suited for trade professionals working with hard alloys, stainless steel, and other high-tensile materials.

This drill bit is used in applications requiring precise hole placement in tough base materials. The 1/4-28 threaded shank is designed for use in quick-change or threaded chuck systems common in production and MRO environments. It conforms to NAS 965 specification, making it appropriate for aerospace and industrial maintenance applications. HVAC, mechanical, and millwright trades commonly use cobalt bits of this type when drilling into hardened brackets, flanges, or structural members that standard high-speed steel bits cannot handle effectively.

Key Features

• Cobalt construction rated for high-tensile strength material applications
• 135-degree split point reduces walking and entry burr
• Web-thinned tapered web lowers drilling thrust
• Oxide coating adds surface hardness and corrosion resistance
• 1/4-28 threaded shank for quick-change chuck compatibility
• NAS 965 specification compliance for industrial and aerospace use
• Right-hand cut with regular spiral flute for efficient chip evacuation

Compatibility

Designed as an OEM-style replacement or direct-use threaded shank drill bit for threaded chuck systems accepting a 1/4-28 shank, suitable for production drilling and MRO operations involving high-tensile strength base materials.

Installation Notes

Installation and use should be performed by qualified machinists or trade professionals familiar with drill press, hand drill, or right-angle drill operation. Secure the threaded shank fully into the chuck before applying power. Verify the chuck system accepts a 1/4-28 threaded shank before mounting. Use appropriate cutting fluid when drilling high-tensile or stainless materials to extend tool life and manage heat buildup.