Hertel 89321954 Screw Machine Drill Bit 1-1/16 in Hss

Product Description

The HERTEL 89321954 is a screw machine length drill bit designed for high-throughput drilling operations in metal fabrication, machining, and mechanical trade work. Built from high-speed steel with a bright, uncoated finish, this bit measures 1-1/16 inches in diameter and features a 118-degree point angle suited for general-purpose drilling in steel, iron, aluminum, and similar materials. The shorter-than-standard screw machine length profile increases rigidity and reduces deflection, making it well suited for drill press and CNC lathe applications where stability and hole accuracy matter.

This drill bit is used in machine shops, fabrication facilities, and industrial maintenance settings where larger-diameter holes are required in metal workpieces. With a 4-inch flute length and 6-1/4-inch overall length, it fits standard drill press chucks and boring setups targeting hole sizes in the 0.6000-inch-and-above range. Right-hand cut orientation is the standard configuration for conventional spindle rotation on most machine tools.

Key Features

• 1-1/16 inch (1.0625 inch) diameter for larger bore applications
• 118-degree split-point-compatible angle for general-purpose entry on ferrous and non-ferrous metals
• High-speed steel construction provides heat resistance during sustained drilling cycles
• Bright, uncoated finish allows easy visual inspection of cutting edge condition
• Screw machine length body increases stiffness and reduces runout versus jobber-length bits
• Right-hand cut for use with standard clockwise-rotation machine spindles

Compatibility

Designed as a general-purpose screw machine length drill bit suitable for use in drill presses, CNC lathes, milling machines, and manual boring setups that accept large-shank tooling in the 1-1/16 inch diameter range.

Installation Notes

Installation and use should be performed by qualified machinists or mechanical trade professionals familiar with machine tool operation. Secure the bit firmly in the chuck or collet and verify runout before beginning a drilling cycle. Always power down and de-energize the machine spindle before changing tooling. Follow applicable shop safety standards and manufacturer guidelines for speeds and feeds appropriate to the workpiece material.