Collis Tool 73019 Drill Driver 39/64 Inch MT3 Morse Taper

Product Description

The COLLIS TOOL 73019 is a drill driver designed for use with MT3 outside Morse taper shanks, providing a secure mechanical connection between a taper-shank drill bit and a compatible spindle or machine tool holder. The driver features a 1/4 inch projection and accepts drill tangs in the 0.367 to 0.373 inch thickness range, ensuring proper engagement and positive drive. With a drill size of 0.6094 decimal inch (39/64 inch) and a drill depth of 1-15/32 inches, this part is suited for precision drilling operations in machine shop and production environments. It is typically installed by machinists or tool and die technicians maintaining drill press, lathe, or milling setups.

The 73019 is used in applications requiring a Morse taper drive connection for medium-sized twist drills. It fits MT3 taper spindles commonly found on bench drill presses, knee mills, and engine lathes in both job shop and light industrial settings. The tang-compatible design allows the driver to transmit torque through the tang slot, reducing slip under load. This part is appropriate for any application where a 39/64 inch drill must be driven from an MT3 taper socket with a controlled projection and tang interface.

Key Features

• MT3 outside Morse taper shank for positive taper-fit connection to compatible spindles
• Drill size of 0.6094 decimal inch (39/64 inch) for precise sizing
• 1/4 inch projection for correct positioning of the drill within the holder
• Drill tang thickness range of 0.367 to 0.373 inches ensures secure tang engagement
• Drill depth of 1-15/32 inches supports standard twist drill shank lengths
• Tang-compatible design transmits torque through the tang slot to reduce slippage under load

Compatibility

Designed as an OEM-style drill driver for use with MT3 Morse taper spindles and tang-drive drill bits with a shank tang thickness of 0.367 to 0.373 inches and a drill size of 0.6094 inch.

Installation Notes

Installation is performed by machinists or qualified toolroom personnel. Power down and lock out the machine spindle before inserting or removing any taper-shank tooling. Clean the taper bore and shank thoroughly before seating to ensure full metal-to-metal contact. Do not force the taper with a mallet; use a proper drift and drift slot if removal is needed.