HAND TAP CS - 50 MM X 4.0 MM (3 PCS) - ALPS
https://www.toolsnsafety.com/shop/hand-tap-cs-50-mm-x-4-0-mm-3-pcs-alps-4344
https://www.toolsnsafety.com/web/image/product.template/4344/image_1920?unique=c7c0967
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Carbon Steel Cut Thread Hand Taps Millimeters
