Milling on a bench drill

Disclaimer: Bench Drills ARE NOT designed for milling. All this material is presented as information on a possible arrangement of a tool but not as a guide. Drill quills do not have the strength and bearings for side loads tipically associated with milling. Drill chucks should never be used as tool holders for end mills, this is because mills tend to pull the work piece or sink in it and, if the chuck is held with a morse taper, it will come off and fly dangerously and hurt anyone in its way.

Having warned you enough, I will show you a Drill to mill conversion using a milling attachment of my own design and the original arm of the Face plate of the drill as a "Milling Arm".

First of all, the kind of Bench Drill I use is the Black and Decker (r) BT1200

The length of the attachment is 120 mm with a 80 mm spindle and a 40 mm sleeve. The diameter of the spindle is 10 mm to fit twoo 6200 RS bearings that match the 30mm hole of the milling arm. The sleeve is designed for 6mm milling cutters.

Spindle with Milling Cutter Sleeve and Bearings

The bearings are a pair of 6200 2RS

6 mm hole for milling cutters

The Spindle is cut to fit Drill Chuck

Two Threaded holes for a screw to hold cutters

The "milling arm" is the original Drilling Table arm

I use the original arm for the Faceplate of the drill

Another picture of the arm. The hole is 30mmm wide

30 mm hole of the "milling arm"

Milling arm with the spindle for the drill

Milling arm and spidle before I put it in the chuck

Milling attachment and chuck

Bench Drill to mill

Only needs a milling cutter

Another view of the final product

I did not remove the chip guard

Another view of the milling conversion

Extended bench drill to mill conversion

Milling arm holder