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Color Coded for Application Recognition 1/2” Application5/8” Application

The strength of Drywall relies on maintaining the Three-Point Bond of the components shown: Drywall Structure A - Face paper B - Gypsum C - Back Paper Conventional Installation methods can’t accomplish this. A. Face Paper B. Gypsum C. Back Paper

Typical Installation Problems Nails: Driving the nail too deeply fractures the gypsum and cuts through the face paper.

Typical Installation Problems (Cont’d) Screws: the face paper is cut due to driving the screw too deeply or is torn from friction between the paper and the rotating screw head.

Typical Installation Problems (Cont’d) Sharp edges on rotating screws can result in lacerated fingers, resulting in lost time.

Solution To Installation Problems The shoulder on the Pre-Set limits nails & screws to a constant depth, thereby limiting fracture of gypsum and avoiding cut face paper. A Small Innovation With Huge Advantages

The Pre-Set Device Material: Polycarbonate Properties: High impact strength Temperature range – 40F to 212F Good dielectric strength Inexpensive Dual radius design provides a superior bond

Color-Coded for Size Recognition Pre-Sets are color coded to make size recognition immediate.

Pre-Set with Knurled Pins for Steel Studs Friction between the Pre-Set and the face paper draws the paper down in a smooth arc, maintaining the paper’s structural integrity. Pre-Set minimizes fracture of gypsum.

Pre-Set Screws Face paper is not damaged by overdriving because of positive stop provided by the Pre-Set. Does not cut fingers because the Pre-Set is stationary while screw is rotating into the Drywall.

Finishing Pre-Sets provide a 1/16” recess of the screw or nail head below the surface of the Drywall to ensure an adequate depression to receive joint compound. 1/16”

Temporary Positioning of Drywall Drywall may be positioned using the Pre-Set but not driving it to depth. As such, it allows the choice of relocating the Drywall or driving the Pre-Set to the desired depth.

Time Management If a plain screw misses the stud, the screw will still advance through the Drywall. A Pre-Set screw will stop advancing when the shoulder contacts the Face Paper or the Drywall. Simply grab the Pre-Set and reposition it to the appropriate location.

Changing the Industry Standard Hand installation of nails and screws is time- consuming, therefore expensive. Pre-Sets provide a bridge to the future of Drywall installation by enabling the use of Pneumatic and or Battery Delivery System.

Nail Gun Application Simple modification of current Pneumatic Delivery System permits easy revision to Pre- Set Technology. Driving a nail (3 strokes) Driving a screw Nail gun 4 Seconds 1 Second (Nail & screw times include accessing them from a pouch or apron.)

Modified To Pre-Set Pneumatic Gun To Include Stud-Finder & Laser Level

Pre-Set Pneumatic Application for Steel Studs

Pneumatic Installation of Drywall in Wood Application

Pre-Set’s For Vinyl Siding Applications

Pre-Set for Vinyl Siding Application

Pneumatic Pre-Set for Vinyl Siding

Summary A Perfect Fit For Nail/Screws Fasteners Creates a 3-point bond between sheetrock and stud Innovative Collar creates a consistent depth Provides most uniform contact with studs Perfect butt joints using Pre-Sets installed down the center Greater load bearing capacity Perfect for ceiling applications Fastest installation Lowest labor cost Advantage of Pre-Sets over conventional nails & screws:

Self Tapping Test Pre-Sets Drywall into Steel

May 1,2004 Dear Mr. Murtha: I have tested the Pre-Sets that you sent me and find that they are as good as you claimed they would be. I could detect no observable tearing of the face paper on the sheetrock which, combined with the backing paper provides most of the strength of the sheetrock. The tearing which occasionally occurs when using screws is in my opinion, one of the major causes of failure. Another factor to consider is the increased shear area that derives from the diameter of the Preset being larger than the diameter of the screw alone. Consider a ceiling application: The Drywall panel is supported by the holding capacity of the screws, which is limited by the shear strength of the sheetrock. The area in shear at each screw is the surface area of a cylinder that would be extruded by whichever holding device is selected(screw, nail, etc.). That area is described by the formula A= Dt where t represents the thickness of the panel and D is the diameter of the extruded cylinder. From this you can see that a device with a larger diameter provides a larger area to resist shearing forces. Based upon the sizes of the Presets and screws that you sent me, the 0.336" diameter Preset would result in a shear area that is almost 7% larger than that which the " diameter screw head would provide. I think that your idea to modify a pneumatic nailer to utilize the Presets also merits serious consideration. I examined one model of such a tool, and believe it could be easily adapted. If so, installation of sheetrock using pneumatic nailers could become the industry standard once the cost vs. benefit is realized. The time to install a panel of Wallboard could be reduced by a factor of about four by my estimate. I wish you luck with your endeavor. Cordially, Richard C. Macy Professor Emeritus U.S. PATENT NUMBER: TESTIMONIAL

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