Collis Tool 70408 Standard Tapping Driver MT4 Taper Shank

Product Description

The COLLIS TOOL 70408 is a standard tapping driver with an MT4 Morse taper shank, designed for machine tapping operations in drill presses, milling machines, and machining centers. It accepts a 1-5/8 inch tap with a tap entry depth of 2.38 inches and a tap shank diameter of 1.305 inches. The tap shank square measures 0.979 inches, and the driver provides a 3-1/4 inch projection. Weighing 3.6 pounds, this driver delivers solid, rigid tap holding for ferrous and non-ferrous materials in production and maintenance shop environments.

This tapping driver is suited for use in machine shop settings where MT4-spindle equipment is in service. It is appropriate for production tapping, toolroom work, and repair machining where a reliable, rigid tap holder is required. The standard tapping driver configuration is commonly installed by machinists and tool-and-die professionals in industrial and manufacturing facilities.

Key Features

• MT4 Morse taper shank for direct spindle mounting on compatible machines
• 1-5/8 inch tap capacity with 2.38 inch tap entry depth
• 3-1/4 inch projection from spindle face for clearance in typical setups
• Tap shank diameter of 1.305 inches with 0.979 inch shank square for positive drive engagement
• 3.6 pound construction provides mass for stable, vibration-resistant tapping

Compatibility

Designed as an OEM-style replacement or direct-fit tapping driver for MT4-spindle drill presses, milling machines, and machining centers accepting standard tapping driver tooling.

Installation Notes

Installation is performed by machinists or toolroom technicians. Ensure the machine spindle is fully stopped and de-energized before inserting or removing the MT4 shank. Clean the spindle bore and taper shank of any chips or oil film before seating to ensure full taper contact. Follow the machine manufacturer guidelines and applicable shop safety protocols when securing tooling.