Drill Square MEDIUM (Drill Guide 90 Degrees)
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This Listing is for ONE ONLY 9536814-301 MEDIUM DRILL SQUARE.
Each Drill Square is machined from O-1 "Pennsylvania USA" tool steel, heat treated and then tempered to Rockwell RHC 60+. As you can see in the images there is a 90 degree “V” groove machined on the outside edge of each leg of the Drill Square.
Sometime due to cramped quarters, awkward body positions or just plain hard to reach situation it is very difficult to always drill a hole at 90 degrees to the surface of the part or component. Used correctly this Drill Square can virtually eliminate angular errors.
To use this drilling aid, place one leg of the Drill Square against the surface to be drilled. Then place the point of the drill at the intended location for the fastener hole. Rotate the drill motor/drill to contact the center of the "V" groove which is perpendicular to the surface to be drilled. The drill is pressed against the "V" groove over the entire 1.5" length. This ensures the drilling axis is at 90 degrees to the surface. Used correctly, the resulting fastener hole will be at 90 degrees to the work surface.
The legs of this Drill Square are equal and measure 1.5" in length.
Check out other Sizes of Drill Squares shown in one of the photos.