93SE148 - 3/4 Inch HSS Mag Drill Bit, 3 Inch Depth

Precision HSS Annular Cutter for Deep Hole Drilling

The 3/4" High Speed Steel (HSS) Annular Cutter is engineered for industrial-grade performance in heavy-duty metal fabrication applications. Designed with a substantial 3-inch depth of cut, this tool is capable of penetrating thick structural beams, plates, and tubing in a single pass, eliminating the need for stacking or flipping materials. Manufactured from premium High Speed Steel, it provides excellent heat resistance and edge retention, ensuring consistent performance across multiple cuts.

Unlike traditional twist drills that must convert the entire area of the hole into chips, this annular cutter removes material only at the periphery, ejecting the center as a solid slug. This mechanical advantage translates to faster cutting speeds, reduced power consumption, and significantly less physical feed pressure required from the operator. The precision-ground teeth geometry is optimized to reduce vibration and chatter, resulting in a hole with superior surface finish and dimensional accuracy that often requires no secondary reaming or deburring.

This cutter is an essential tool for structural steel erection, bridge construction, and heavy equipment manufacturing. Its compatibility with standard magnetic drill presses makes it a versatile solution for both shop and field environments. To maximize tool life and cutting efficiency, the use of appropriate cutting fluid or coolant is highly recommended during operation.