Question about Makita Rotary Hammer 1100 Rpm, 4500 Bpm, 7 Amp, ModelNo. HR2445X

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Chunk spec what are the chunk sizes availbale for rotary drill?

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Chuck sizes range from 1/4" to 1/2"

Posted on Aug 27, 2008

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I bought a rotary hammer drill from Asia 220V/60Hz & I want to use this in Canada 110V/60Hz Can I use Step down transformerconverter available in amazon or ebay?


Yes you can.
Make sure the transformer is rated for more power than the drill label states so that you don't burn up the transformer if you stick the drill bit.
For instance, if the drill is rated for 5 amps at 230 volts you should get a 1500 watt transformer. 230 x 5= 1150 watts; the next common size up is 1500 watts. You don't want an 1200 watt if it is available.
Transformers are also rated in KVA [Killovolt-amps] so the same transformer would be 1.5 KVA.
Do the math for your drill and save future problems. If a transformer doesn't have a rating with real numbers, avoid it. There are lots of really cheap ones on the market that you will regret buying.

Feb 07, 2015 | Bosch Rotary Hammers

1 Answer

Skil hevy duty drillhammer


It is called a chuck and comes with a key. Purchase from any hardware store Comes in 1 /4--3/8 and 1/2 sizes ( Drill sizes)

Apr 26, 2013 | Rotary Hammers

2 Answers

What's your problem? rotary hammer will not hammer


Look for a lever that has signs hammer/drill or just drill Place the lever in the hammer position.

Feb 19, 2012 | Bosch Rotary Hammers

1 Answer

Bought a 5378-20 Milwaukee hammer drill used - what are the settings 1 and 2 for? No instruction manuel. thx


one setting w/hammer is for chipping,breaking up stuff.other setting w/hammer and drill symbol is for drilling in masonary application's

Apr 21, 2010 | Milwaukee 5321-21 Rotary Hammer

1 Answer

I have a makita hr2455x rotary hammer drill that won't hammer


you need to get that service,
the grease causes the hammering.
and probably too much pressure was applied
to it.

Mar 25, 2009 | Makita HR2455X 1" Rotary Hammer Drill

1 Answer

Drive systems Question


SDS (or Slotted Drive System) bits for hammer drills/rotary hammers allow the bit to slide in the chuck and enhance the hammering action of the tool. For most applications, these bits provide plenty of torque. SDS Max bits are similar to SDS bits, but have larger shanks and come in larger sizes than SDS bits. These powerful bits are useful in industrial applications.

Aug 27, 2008 | Makita Rotary Hammer 450 Rpm, 2500 Bpm,...

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