Collis Tool 73424 Split Sleeve Tapping Driver MT3

Product Description

The COLLIS TOOL 73424 is a split sleeve tapping driver with an MT3 Morse taper shank, designed for use with 3/4 inch taps on drill presses and milling machines. The split sleeve design allows quick tap changes without removing the driver from the spindle, improving cycle time in production tapping operations. Tap entry depth is 1-51/64 inches, projection is 1/4 inch, tap shank diameter is 0.59 inches, and the tap shank square measures 0.442 inches. This driver is installed by machinists and tool-room technicians working with tapping attachments on standard Morse taper spindles.

This tapping driver is suited for production and job-shop environments where repetitive tapping operations are performed on drill presses, turret lathes, or milling machines equipped with an MT3 spindle. The split sleeve mechanism accommodates the 3/4 inch tap size and provides positive drive engagement while allowing the tap to float axially, reducing the risk of tap breakage during through-hole and blind-hole tapping. Typical applications include metalworking shops handling ferrous and non-ferrous materials.

Key Features

• MT3 Morse taper shank for direct spindle mounting on compatible machines
• Split sleeve design enables fast tap changes without removing the driver from the spindle
• 1-51/64 inch tap entry depth accommodates standard 3/4 inch tap geometry
• 1/4 inch projection keeps the tap close to the work surface for rigid setup
• Tap shank square of 0.442 inches provides positive rotational drive engagement
• Lightweight at 0.5 pounds, suitable for repeated manual and semi-automatic tapping cycles

Compatibility

Designed for use with 3/4 inch taps on machine spindles fitted with an MT3 Morse taper. Verify tap shank diameter of 0.59 inches and tap shank square of 0.442 inches match the tap being used before installation.

Installation Notes

Installation is performed by machinists or tool-room technicians. Power down and lock out the machine spindle before seating or removing the MT3 taper shank driver. Clean the spindle bore and taper shank with a lint-free cloth to ensure full taper contact and prevent fretting. Do not use the driver beyond its rated tap size, as overloading the split sleeve can cause premature wear or tap breakage.