History
The definitive origin of the first hammer drill is a matter of discussion, although if you look at "hammer drills" and "rotary hammers" as separate categories, the origins are clear. Hilti had the first "electro-pneumatic" rotary hammer on the market in 1967 (the Hilti TE 17) and the Milwaukee Electric Tool Corporation states that in 1935, it was selling a lightweight 1/4-inch electric hammer drill (cam-action) .
Read more about this topic: Hammer Drill
Famous quotes containing the word history:
“I cannot be much pleased without an appearance of truth; at least of possibility—I wish the history to be natural though the sentiments are refined; and the characters to be probable, though their behaviour is excelling.”
—Frances Burney (1752–1840)
“Hence poetry is something more philosophic and of graver import than history, since its statements are rather of the nature of universals, whereas those of history are singulars.”
—Aristotle (384–322 B.C.)
“The best history is but like the art of Rembrandt; it casts a vivid light on certain selected causes, on those which were best and greatest; it leaves all the rest in shadow and unseen.”
—Walter Bagehot (1826–1877)