There are three primary types of No. 50 Milling Machine tapered tool holders that Lucas spindles were designed to accept. It is essential to correctly identify the type of tool arbor that you are trying to us in your Lucas so that we can supply the correct Drawback Collet Adapters and Tooling Drive Keys.

Here is a simple method of 50MM Tooling Arbor Identification. Simply use a micrometer and check the distance across the Driving Key 'flats' on the Tooling Arbor you wish to use and compare the dimesion to the information below.

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Late Model PTE Setting Gage Calibration

Recalibration of the setting gauge may be required to maximize the holding power of the Lucas PTE tool holding mechanism for any one of several reasons. The more common reasons are:

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Manual Tool Ejector (MTE) Bevel Gear Fitting Notes

When fitting the bevel gear sets used in Lucas Manual Tool Ejector assemblies, care must be taken to assure that the bevel gears are properly meshed to give maximum tooth engagement (for strength) while still having sufficient backlash to prevent difficult rotation and a subsequent 'bony' feeling to the gears.

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Power Tool Lock & Ejector (PTE) Service Tips

A customer should attempt only simple, basic service operations on a Lucas PTE system. I do not recommend that ANY customer attempt to perform an 'in field' rebuild of the PTE. There are too many different designs, and too many 'shop tricks'. Since a tool that is released from the Spindle while the machine is running presents a considerable personnel hazard, even telephone assistance beyond the most basic items is not provided.

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