HAND TAP - HSS - 1/2 INCH X 13 - UNC - ALPS
https://www.toolsnsafety.com/shop/hand-tap-hss-1-2-inch-x-13-unc-alps-4175
https://www.toolsnsafety.com/web/image/product.template/4175/image_1920?unique=c7c0967
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High Speed Steel Cut Thread Hand Taps UNC
