Collis Tool 74452 MT4 Taper Shank Pipe Tap Driver

Product Description

The COLLIS TOOL 74452 is an MT4 taper shank split sleeve tapping driver designed for machine tapping of 3/4 inch pipe threads. The driver accepts a 3/4 inch pipe tap and provides 1-11/16 inches of tap entry depth, giving machinists and maintenance technicians adequate reach for through-hole and blind-hole pipe thread applications. The split sleeve design allows the tap to be held securely while permitting controlled axial float during the tapping cycle. With a tap shank diameter of 0.906 inches and a tap shank square of 0.679 inches, the 74452 is built for use in machining centers, drill presses, and manual milling operations where consistent pipe thread quality is required.

This tapping driver is suited for metalworking shops, industrial maintenance facilities, and trade professionals who require precision pipe thread tapping in steel, iron, and similar ferrous materials. The MT4 taper shank mounts directly into compatible machine spindles without an intermediate adapter. The 3/8 inch projection positions the tap close to the spindle face, reducing deflection and improving thread accuracy in production or repair settings.

Key Features

• MT4 taper shank for direct spindle mounting without an adapter
• Split sleeve design secures 3/4 inch pipe taps with controlled axial float
• 1-11/16 inch tap entry depth for through-hole and blind-hole applications
• 0.906 inch tap shank diameter and 0.679 inch tap shank square for precise tap retention
• 3/8 inch projection minimizes overhang and reduces tap deflection

Compatibility

Designed for use with 3/4 inch pipe taps featuring a 0.906 inch shank diameter and 0.679 inch shank square, mounted in machine spindles accepting an MT4 taper shank.

Installation Notes

Installation is performed by machinists or maintenance technicians with experience in machine tapping operations. Power down and lock out the machine spindle before inserting or removing the taper shank driver. Ensure the MT4 taper and spindle socket are clean and free of chips or burrs before seating the shank. Follow the machine manufacturer guidelines and applicable shop safety procedures when setting feed rate and speed for pipe thread tapping.