I don't exactly which for this package. The pictures show knife and pliers marketings. It looks like the knife says "Ulster Knife" and the pliers' markings seem to be somewhat rubbed off, but the last 3 letters say "KER", which I think stands for BOKER.
Ulster contracted with the USArmy Signal Corps to supply a specific grade of pocket knife, and the Herman Boker Company of New York contracted to supply the pliers. 8.5 inches long by 2.5 inches wide by 2 inches deep. The item "WWI/WWII US SIgnal Corps brown Leather cased took kit, pliers, knife" is in sale since Friday, February 26, 2021. This item is in the category "Collectibles\Militaria\WW I (1914-18)\Original Period Items\United States\Medals, Pins & Ribbons". The seller is "webbeatle" and is located in Wake Forest, North Carolina. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay, Russian federation.