05Z038 - Walter MT3 to 1-1/4 Inch Weldon Annular Cutter Adaptor with Coolant Inducer

Maximize Drilling Efficiency with the Walter #3 Morse Taper Adaptor

The Walter 05Z038 #3 Morse Taper Adaptor is a precision-engineered accessory designed to significantly expand the capabilities of your drilling equipment. In the industrial metalworking sector, efficiency and tool longevity are paramount. This adaptor allows operators to convert standard machinery equipped with a #3 Morse Taper (MT3) spindle—such as stationary drill presses, radial arm drills, and heavy-duty magnetic drilling units—into powerhouses capable of utilizing large-diameter annular cutters. By transitioning from traditional twist drills to annular cutters, shops can achieve faster cycle times, cleaner holes, and reduced power consumption.

One of the standout features of this specific adaptor is its integrated coolant inducer. Heat generation is the primary enemy of cutting tools, particularly when drilling through thick steel plate or hard alloys. The built-in coolant ring allows for the connection of a lubrication system that feeds coolant directly through the center of the adaptor and down to the pilot pin of the cutter. This internal lubrication method is far superior to external flooding, as it ensures the cutting teeth are constantly lubricated and chips are effectively evacuated from the hole. This results in a dramatic increase in the lifespan of your annular cutters and ensures a superior surface finish on the bore.

Constructed from high-strength hardened steel, the Walter 05Z038 is built to withstand the high torque and axial forces generated during heavy drilling operations. The 1-1/4" Weldon reception is machined to tight tolerances, ensuring a secure, slip-free grip on the cutter shank. This rigidity minimizes runout and vibration, which is critical for maintaining hole accuracy and preventing premature tool failure. Whether you are working in a fabrication shop, a maintenance department, or a structural steel facility, this adaptor provides the versatility needed to tackle large hole-making tasks without the need for expensive, dedicated magnetic drills.

By integrating this adaptor into your tooling inventory, you unlock the potential to drill larger diameters with less horsepower, as annular cutters remove only the periphery of the hole rather than converting the entire area into chips. This efficiency makes the Walter 05Z038 an essential investment for any operation looking to optimize their metal drilling processes.