A hammer drill, also known as a "rotary hammer", "roto-drill" or "hammering drill", (see also rotary drill) is a rotary drill with a hammering action. The hammering action provides a short, rapid hammer thrust to pulverize relatively brittle material and provide quicker drilling with less effort. These tools are usually electric powered, but increasingly are also seen running off of cordless battery technology. The same technology is also used in electric "demolition hammers", also known as "chipping guns" or "breakers".
Read more about Hammer Drill: Types of Hammer Drills: "Cam-Action" (Percussion) and "Electro-Pneumatic", Use, Rotary Hammers, History
Other articles related to "drill, hammer drill, hammers, hammer, drills, hammer drills":
... masonry bit shown here is a variation of the twist drill bit ... Masonry bits typically are used with a hammer drill, which hammers the bit into the material being drilled as it rotates the hammering breaks up the masonry ... the bit also brings the cutting edges onto a fresh portion of the hole bottom with every hammer blow ...
... The rotary hammer drill (also known as a rotary hammer, roto hammer drill or masonry drill) combines a primary dedicated hammer mechanism with a separate rotation ... Generally, standard chucks and drills are inadequate and chucks such as SDS and carbide drills that have been designed to withstand the percussive forces are used ... are intended for masonry drilling only and the hammer action cannot be disengaged ...
... The hammer drill is similar to a standard electric drill, with the exception that it is provided with a hammer action for drilling masonry ... The hammer action may be engaged or disengaged as required ... Most electric hammer drills are rated (input power) at between 600 and 1100 watts ...
... production of their first bench drilling machines, hand sanders, braces, and the first universal drill, sanding and polishing machines equipped with circular saws ... In 1934 followed their first electric hand drill and in 1936 their first geared chucks ... They produced their first hammer drill in 1957 and the first hammer drill with electronic speed regulation in 1969 ...
... 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 ...
Famous quotes containing the words drill and/or hammer:
“Swift blazing flag of the regiment,
Eagle with crest of red and gold,
These men were born to drill and die.
Point for them the virtue of slaughter,
Make plain to them the excellence of killing
And a field where a thousand corpses lie.”
—Stephen Crane (18711900)
“This Administration has declared unconditional war on poverty and I have come here this morning to ask all of you to enlist as volunteers. Members of all parties are welcome to our tent. Members of all races ought to be there. Members of all religions should come and help us now to strike the hammer of truth against the anvil of public opinion again and again until the ears of this Nation are open, until the hearts of this Nation are touched, and until the conscience of America is awakened.”
—Lyndon Baines Johnson (19081973)