Hertel 2386522 Size 45 Screw Machine Drill Bit Hss

Product Description

The HERTEL 2386522 is a screw machine length drill bit designed for high-speed, close-tolerance drilling in metal fabrication and machining applications. Built from high-speed steel with an oxide finish, it is sized at wire gauge No. 45, which equals 0.0820 inches in decimal. The 135-degree split point reduces walking and lowers the thrust needed to start a hole, making it well-suited for production drilling on harder ferrous materials. The overall length is 1.75 inches with a 0.75-inch flute length, keeping the bit compact and rigid for stub-length drilling tasks. A web-thinned, parallel web configuration improves chip evacuation and cutting efficiency.

This bit is intended for use in drill presses, CNC machining centers, and hand-held power tools where a stub-length bit provides better rigidity and reduced deflection. It is a standard choice for machinists, tool-and-die technicians, and production shop operators drilling small-diameter holes in steel, iron, and other metals. The straight-cylindrical shank fits standard collets and chucks without modification. Right-hand spiral flutes are compatible with conventional right-hand rotation spindles.

Key Features

• Wire gauge No. 45 size — 0.0820 inch decimal diameter
• 135-degree split point reduces walking and entry thrust
• High-speed steel construction with oxide coating for wear resistance
• Screw machine (stub) length at 1.75 inches OAL for maximum rigidity
• Web-thinned parallel web for improved chip flow
• Straight-cylindrical shank fits standard drill chucks and collets

Compatibility

Designed as a direct-fit replacement screw machine drill bit for any right-hand rotating drill press, CNC machining center, or hand-held power tool equipped with a chuck or collet accepting a 0.0820-inch straight-cylindrical shank.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician familiar with cutting tool setup and speeds. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable tolerance. Select spindle speed per the material being drilled and the manufacturer recommended surface footage for HSS tooling. Do not exceed the rated operating parameters for the machine or the cutting tool.