A-A-54584
section between the serrated thumb grip and the inner end shall be extended over the lower surface of the core to the opposite side edge. The center portion of the free end shall be provided with a lip to hold the grooved insert securely in place. The upper corners of the free end shall be slightly rounded. The inner ends shall be assembled in the sheath and shall be securely held by crimping.
Handle. The handle and the assembled blade holder shall be attached by a pin rivet and two 5/16 inch washers. The washers shall be placed on the pin rivet between the handle and the holder. The rivet shall hold the parts with sufficient tension for the blade holder to remain folded in the handle to protect the blade when closed, and to stay in an open position during use, but without excessive tension which would prevent the holder from being freely opened and closed.
Razor guard. The razor guard shall be a removable and reversible tooth guard, as shown in the drawing.
Blade. The blade shall be two-piece, consisting of a rib and a cutting blade. The rib shall securely hold the cutting blade. The cutting blade shall have a single cutting edge. The central portion of the cutting blade shall have an optional rectangular hole, provided the hole required during the manufacturing process, and shall not exceed the maximum limits, specified on the drawing.
Finish.
Razor. The razor components fabricated from nickel silver sheet metal shall be chromium plated. All exterior surfaces of the razor shall have a bright polished finish. The outer end pin rivet attaching the blade holder in the handle shall be smoothly peened.
Blade. The cutting edge of the blade shall be bilaterally ground and honed to razor sharpness. The final honed bevels shall be flat, smooth and continuous throughout the entire length. Except for the extreme 1/8 inch at either end, the cutting edge shall be free from micro-cracks, and not more than 5 percent of the edge length shall show nicks, notches, or unhoned portions when viewed microscopically at a magnification of 100 diameters. The remainder of the blade shall have a smooth, bright polished finish. The entire blade shall be free from rust and scale.
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