Collis Tool 71203 Letter J MT1 Morse Taper Drill Driver

Product Description

The COLLIS TOOL 71203 is a Letter J drill driver with an MT1 outside Morse taper shank, designed for use in Morse taper spindles on drill presses, lathes, and milling machines. It accepts a drill tang and drives a 0.277 inch diameter drill bit at a 1 inch drill depth. The tang thickness compatibility range runs from 0.158 to 0.162 inches, and the driver features a 3/16 inch projection. Machinists and toolroom technicians use this type of driver to positively locate and drive taper-shank tooling in MT1 spindle bores without slippage.

This driver is suited for light-duty machining operations in shops requiring Letter J size drill access through a Morse taper No. 1 spindle. Typical applications include through-hole drilling, production work on benchtop drill presses, and lathe tailstock operations where a tang-drive interface provides secure tool engagement. It is appropriate for both manual machine shops and vocational training environments where MT1 tooling is standard.

Key Features

• MT1 outside Morse taper shank for positive engagement in No. 1 taper spindles
• Drives Letter J drill size at 0.277 inch diameter
• 1 inch drill depth capacity
• Drill tang compatible with 0.158 to 0.162 inch tang thickness range
• 3/16 inch projection for proper tool positioning

Compatibility

Designed as an OEM-style replacement driver for MT1 spindle machines requiring Letter J drill size capability with tang-drive engagement.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before inserting or removing any Morse taper tooling. Clean the spindle bore and taper shank of all chips, oil, and debris before seating the driver to ensure full taper contact. Use a drift key through the spindle slot to safely eject the driver - never strike the drill or driver directly.