Intended for the drilling f holes from 0.014" to 0.25" the Precise high-speed drill presses had a sensitive rack-and-pinion feed with adjustable stops built into the elevating 4-inch diameter table (the drill head was adjusted to the correct position on the column and then clamped to it). Using an electronic control unit, speeds could be varied between 10,000 and 45,000 r.p.m. The maximum clearance between table and chuck was 6" and the maximum table lift 1.5". During the 1950s two models were offered, one with a head fixed at 90° to the column, the other able to be rotated through 360° on its support bracket.
"Micro milling" a hardened steel die. The Super 50 shown in use could remove up to 0.005" in one pass leaving a surface finish under 10 micro inches and producing a round and straight hole
Finish grinding a forming die using an original-model Super 50 held in Single Support Universal Mount
Internal grinding a hardened steel ring using a Super 30 mounted in a lathe using the Precise Tapered Wheel Arbor. More on toolpost grinders here
Drilling small holes with an original-model Super 50 attached to an ordinary 14-inch Delta drill press
A production set-up with four Super 50 Power Quill units
drilling, chamfering and milling small parts in brass
An early round-ram Bridgeport miller adapted to carry an original version of the Model 50 held in a Compound Universal Support
Grinding a die held in an independent 4-jaw chuck using a Super 40 secured in a Double-swivel Universal Support
Internal grinding a large hardened steel collar with a Super 50 held the lathe's top slide by a Single Support Universal Mount
Using a Super 50 held in Compound Universal Mount (attached to an overarm mount) to mill an aluminium part held in a dividing head
Correcting a hardened die with a Super 50 mounted on an Index milling machine fitted with one of the many versions of the Precise Universal Mount
Routing a Masonite model with a Super 30 mounted on a 14-inch Delta drill press
Thread milling a fibreglass tube with an original-type Super 40