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Citing Wikipedia's article on Metallurgy

Egyptian weapons made from meteoric iron in about 3000 BC were highly prized as "daggers from heaven".[11]

The listed source is:
11. W. Keller (1963) The Bible as History. p. 156. ISBN 0-340-00312-X

I wasn't able to find this book online, but the description on Open Library suggests it's rather a "Biblical Archeology" book than a mainstream historical book.

Q1: Were 3000 BC Egyptians really using weapons made from meteoric iron?
Q2: If so, were these really called "daggers from heaven"?

If possible, give the actual archeological findings confirming this.

tl;dr As commonly understood, the claim is a bit exaggerated by a few hundred years. They had iron artefacts at the time and a few resemble weapons. This cannot be regarded as widespread use of weapons made from meteoric iron at the time 3000BCE.

Wikipedia lists the famous

Tutankhamun's meteoric iron dagger

No Egyptian archaeological evidence exists of iron smelting until the 6th century BC. The earliest known example of the use of metallic iron in Egypt dates to approximately 3400 BC.

The other iron objects were wrapped with Tutankhamun’s mummy; these include a miniature headrest contained inside the golden death mask, an amulet attached to a golden bracelet and a dagger blade with gold haft. All were made by relatively crude methods with the exception of the dagger blade which is clearly expertly produced.
This suggests that the dagger was probably imported to Egypt perhaps as a royal gift from a neighboring territory, indicating that at this time Egypt’s knowledge and skills of iron production were relatively limited. Only further analytical testing can confirm if all of these artifacts are made from meteorite iron but they do appear to suggest that iron was a material used to indicate high status at the time of Tutankhamun’s death in approximately 1327 BC.

While it is often found to consist of meteoric iron origin (Daniela Comelli et al.: "The meteoritic origin of Tutankhamun’s iron dagger blade", Meteoritics & Planetary Science 1–9, 2016, DOI), and possible to have been 'made' within Egypt, king Tut's dagger is now widely seen as probably a gift from a Hittite ruler. (Michel Valloggia: "La maîtrise du fer en Egypte: entre traditions indigènes et importations", Mediterranean Archaeology 1, 195–204, 2001.)

Other examples for

Meteoric iron
Bronze Age

Many examples of iron working from the Bronze Age have been confirmed to be meteoritic in origin.

In ancient Egypt an iron metal bead was found in a graveyard near Gerzeh that contained 7.5% Ni. Dated to around 3200 BC, Geochemical analysis of the Gerzeh iron beads, based on the ratio of nickel to iron and cobalt, confirms that the iron was meteoritic in origin.

• Dated to around 2500 BC, an iron dagger from Alaca Höyük in Turkey was confirmed to be meteoritic in origin through geochemical analysis.


• Dated to around 2300 BC, an iron pendant from Umm el-Marra in Syria was confirmed to be meteoritic in origin through geochemical analysis.


• Dated to around 1400 BC, an iron axe from Ugarit in Syria was found to be meteoritic in origin.


• Dated to around 1400 BC, several iron axes from the Shang Dynasty in China were also confirmed to be meteoritic in origin.


• Dated to around 1350 BC, an iron dagger, bracelet and headrest from the tomb of Tutankhamun were confirmed to be meteoritic in origin. The Tutankhamun dagger consists of similar proportions of metals (iron, nickel and cobalt) to a meteorite discovered in the area, deposited by an ancient meteor shower.

This "many examples" should be read as 'comparatively many' in the context of archaeology. These "highly prized weapons" weren't issued for general use in the armies of the day.

It seems at first it was made primarily into beads and other jewellery (Thilo Rehren et al.: "5,000 years old Egyptian iron beads made from hammered meteoritic iron", Journal of Archaeological Science
Volume 40, Issue 12, December 2013, Pages 4785-4792).

But:

Indeed, sporadic iron objects were found at Egyptian sites, but it is generally accepted that iron smelting began in Egypt after its invasion by the Assyrians in 691 BC. (p19)

Egypt and areas under its influence along the Nile broadly followed this trajectory of copper, bronze and iron transition. Gold and other metals such as lead were also worked during this time, such that a long-distance trade had evolved by 2000 BC. Despite its advantages, iron was not universally accepted in the Middle East because Egypt only fully embraced it around 700 BC, more than six centuries after its adversaries, neighbours and trading partners adopted it (Craddock 2000; Holl 2000). The Cushite Egyptian Pharaohs were defeated by iron-armed Assyrians in 691 BC. This supports the argument that the adoption of metallurgy, such as technology in general, is culturally mediated; no matter how many perceived advantages there are, society determines what is and what is not acceptable. (p23)

_{"Origins of Metallurgy in Egypt and Adjacent Areas" in: Shadreck Chirikure: "Metals in Past Societies. A Global Perspective on Indigenous African Metallurgy", Springer: Cham, Heidelberg, 2015.}

Its rarity making this iron a precious metal. Although quite quickly metal workers also used iron to complement metal edges.

A decidedly non-biblical archaeology source would be
Otto Johannsen: "Geschichte des Eisens. Stahleisen: Düsseldorf, ³1953.

Although this older work lists a Sumerian urudu-an-bar (meaning copper of the skies/heavens) from 3100 BCE as the oldest find.

Meteoric iron was also available to lithic people. This usually contains about 10% Ni and is therefore much harder and more difficult to work. The nickel content varies from 4 to 26%, and can be easily detected as there seem to be no ores capable of giving this level of nickel in a homogeneous form by direct smelting.

It has been calculated that there are at least 250 t of meteoric material extant, and that 99.4% of this is malleable." However, the problems are much the same as with native copper. When cold hammered, the material tends to crack along well-defined crystal planes. With care and annealing, or by hot forging, small artefacts can be made and lithic peoples in the Cape York area of West Greenland have been making tools from meteoric material containing about 8%Ni. While prolonged heat treatment at elevated temperatures will destroy the structure of meteoric iron in time, the material will be always recognizable by its composition.
_{R. F. Tylecote: "A History Of Metallurgy", Maney: London, ²1992.}

H. H. COGHLAN: "Notes on prehistoric and early iron in the Old World", 1977, (2 ed.), Pitt Rivers Museum Occ. Paper No.8, Oxford

In summary we have to note that strictly speaking, iron was known at that time and a few artefacts would qualify as "weapons". But the iron from that time is at once much too rare and expensive (paid for in gold, six time the weight of gold judged as inadequate payment); and on the other hand of really inferior quality as a real world weapon, with bronze and even copper having better material qualities than the iron: so, practically speaking:

No, around 3000BCE the Egyptians didn't use enough iron weapons to really allow answering the question in the positive.

This became only widespread after 1400BCE, with smelted and forged iron and steel, starting most probably from Anatolia (the Hittites).

(GA Wainwright: "The coming of iron", Antiquity, Volume 10, Issue 37 March 1936 , pp. 5-24 DOI)

This is graphically summarised (notice the isolated meteoric iron spots in Egypt and Mesopotamia) in

Ünsal Yalçin "Zum Eisen der Hethiter". (PDF) In: Ü. Yalçın, C. Pulak & R. Slotta (Hrsg.): Das Schiff von Uluburun - Welthandel vor 3000 Jahren, Ausstellungskatalog, Bochum 2005, 493-502.

The actual artefacts used to date the spread of iron weapons:

<sup>The early iron dagger from Alaca Höyük (ca. 2800 BCE, 2400 BC–2300 BC but maybe 2500 BC)

Dagger from the Royal Tombs of Ur, ca. 2600 BC–2300 BC</sup>

(Src: Helmut Föll: "Iron, Steel and Swords", Hyperskript "Allgemeine Materialwissenschaft", Christian-Albrecht-Universität Kiel, undated (2012?), PDF)