Collis Tool 71166 MT1 Morse Taper Drill Driver

Product Description

The COLLIS TOOL 71166 is an MT1 outside Morse taper drill driver designed to hold and drive taper-shank drill bits in machine tool spindles. It accepts a drill size of 0.166 inches (decimal) and provides a drill depth of 3/4 inch. The drill tang compatible design accommodates tang thicknesses ranging from 0.09 inches minimum to 0.094 inches maximum. This driver is installed by machinists and toolroom technicians working with drilling machines, lathes, or milling machine setups that use MT1 taper spindles.

This drill driver is suited for precision drilling applications in machine shops and light manufacturing environments where MT1 taper tooling is standard. It is used in benchtop drill presses, engine lathes, and similar equipment configured with a No. 1 Morse taper spindle. The 3/16 inch projection dimension supports accurate tool positioning within the spindle bore. Typical applications include production drilling, fixture work, and toolroom operations requiring consistent taper-shank bit retention.

Key Features

• MT1 outside Morse taper for direct spindle mounting in No. 1 Morse taper machines
• Accepts drill size of 0.166 inches for precise bit fitment
• Drill tang compatible design with tang thickness range of 0.09 to 0.094 inches
• 3/4 inch drill depth provides secure engagement and stable bit retention
• 3/16 inch projection supports accurate positioning in the spindle bore

Compatibility

Designed as an OEM-style drill driver for machine tool spindles with a No. 1 Morse taper (MT1) bore. Compatible with taper-shank drill bits that have a tang thickness between 0.09 and 0.094 inches and a decimal drill size of 0.166 inches.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before seating or removing any Morse taper tooling. Use a proper drift key through the spindle slot to eject the driver - never strike the taper body directly. Inspect the taper bore and driver shank for burrs or debris before seating to ensure full contact and prevent spindle damage.