Collis Tool 72299 Letter O MT2 Drill Driver

Product Description

The COLLIS TOOL 72299 is a Letter O Morse Taper 2 (MT2) outside taper drill driver designed for use with letter-size drill bits in machine tool applications. The 72299 features a 1/4-inch projection and accommodates drill tang thicknesses from 0.199 to 0.203 inches, making it a precise fit for standard Letter O drill shanks at a 0.3160-inch decimal size. This driver provides a secure, concentric connection between the drill bit and the spindle, reducing runout and improving hole accuracy. It is installed by machinists, toolroom technicians, and maintenance professionals working with drill presses, milling machines, and lathes equipped with MT2 spindles.

The COLLIS TOOL 72299 is suited for production and toolroom environments where MT2-spindle equipment is in use. It accepts Letter O drill bits with a drill depth capacity of 1-1/8 inches and a drill tang compatible design that locks the bit securely during operation. Typical applications include precision drilling in metal fabrication shops, maintenance facilities, and industrial manufacturing operations requiring repeatable hole sizing at 0.3160 inches decimal.

Key Features

• MT2 outside Morse taper shank for direct mounting in MT2-equipped spindles
• Letter O drill size at 0.3160 inches decimal diameter
• 1/4-inch projection for compact tool length and reduced overhang
• Drill tang compatible design secures bit and prevents rotation under load
• Drill tang thickness range of 0.199 to 0.203 inches for precise tang fit
• 1-1/8-inch drill depth capacity

Compatibility

Designed as an OEM-style drill driver for use with MT2 outside Morse taper spindles accepting Letter O drill bits with tang thicknesses between 0.199 and 0.203 inches.

Installation Notes

Installation is performed by machinists or toolroom technicians. Power down and lock out the machine spindle before inserting or removing the driver. Clean the MT2 taper bore and driver shank of chips and oil before seating to ensure full taper contact and minimize runout. Do not use the driver to transmit torque without the drill tang properly engaged in the tang slot.