Collis Tool 73450 MT3 Taper Shank Pipe Tap Driver

Product Description

The COLLIS TOOL 73450 is an MT3 taper shank split sleeve tapping driver designed for use with a 1/4 inch pipe tap. It accepts a tap shank diameter of 0.562 inches and a tap shank square of 0.421 inches, providing a secure, positive drive during tapping operations. The split sleeve design allows the driver to accommodate the tap without permanent modification to the holder. With a tap entry depth of 1-1/16 inches and a projection of 1/4 inch, this driver suits precision tapping setups on mills, drill presses, and similar machine tools. Licensed machinists and tool and die professionals are the primary users of this type of driver.

The 73450 is intended for use in machine tool applications where an MT3 taper spindle is present. It functions as the interface between the machine spindle and the tap, transmitting torque through the split sleeve grip on the tap shank. This driver is appropriate for production and maintenance machining environments where consistent pipe thread tapping is required. Its 1/4 inch pipe tap capacity makes it suited for light-duty threading tasks in metal fabrication, pipe fitting component production, and similar applications.

Key Features

• MT3 taper shank provides direct fit into compatible machine spindles without an adapter
• Split sleeve design grips the tap shank securely and allows tap changes without special tools
• Accepts 1/4 inch pipe taps with a 0.562 inch shank diameter
• Tap shank square of 0.421 inches ensures positive torque transfer and prevents tap slippage
• 1-1/16 inch tap entry depth accommodates standard pipe tap shank lengths
• 1/4 inch projection keeps the tap close to the driver body for improved rigidity

Compatibility

Designed for use with 1/4 inch pipe taps having a 0.562 inch shank diameter and a 0.421 inch shank square, mounted in machine spindles with an MT3 taper bore.

Installation Notes

Installation is performed by a machinist or toolroom technician. Power down and lock out the machine spindle before inserting or removing the taper shank driver. Clean the MT3 taper bore and the driver shank thoroughly before seating to ensure full contact and prevent fretting. Follow the machine manufacturer's guidelines and applicable shop safety procedures when operating tapping drivers.