C2 - Use Portable Tools LT #3 Hammer

Question 1

What precautions should be taken when handling carbide-tipped bits?

Answer 1

1) Don’t drop onto hard surfaces
2) Don’t lever when in holes
3) Store so tips are protected and won’t rattle against eachother

Question 2

How is a cut started when using a demolition hammer?

Answer 2

Down into the concrete near edge area then angled

Question 3

What is the hammer drill mainly used for?

Answer 3

To drill small-diameter holes up to 20 mm (3/4”) in concrete using the hammer mode

Question 4

When is rotary-only mode used on a hammer drill?

Answer 4

To drill holes in steel and wood.

Question 5

What is a rotary hammer used for?

Answer 5

Can handle most drilling jobs, also used for light chiselling and demolition work.

Question 6

A rotary hammer is ideal for setting an anchor why?

Answer 6

Rotary mode drills and hammer mode sets the anchor

Question 7

Rotary hammers, depending on the size, can drill how deep?

Answer 7

50-mm to 150 mm

Question 8

Rotary-hammer mode is used for drilling which materials?

Answer 8

For concrete, rotary-only mode is used for most other kinds.

Question 9

How can you make sure the depth of the hole is accurate?

Answer 9

Using a depth-gauge

Question 10

How can you drill large-diameter holes in concrete?

Answer 10

Using a large drill or rotary hammer in drill-only mode, a core bit can be used

Question 11

What is a core bit?

Answer 11

a hollow, cylindrical drill bit that is usually closed at one end and has a series of cutting teeth at the open end. Cutting teeth usually impregnated with undustrial diamonds.

Question 12

Demolition hammers are also known as what?

Answer 12

Breakers or jack hammers

Question 13

What modes does a demolition hammer have?

Answer 13

Hammer-only

Question 14

What does a bull point attachment do?

Answer 14

An attachment that comes to a sharp point, used for breaking up concrete or other hard materials, mainly demo

Question 15

What does a chisel attachment do?

Answer 15

Used for breaking up concrete, wider than the bull point, taking a bigger bite but less impact.

Question 16

What does a scaling/wide chisel do?

Answer 16

Similar to an ordinary chisel, except that it has a wider blade - remove tiles, ornamental brick etc

Question 17

What does a digger attachment do?

Answer 17

Slightly wider than the chisel, used for digger and trenching jobs

Question 18

What does a spade do?

Answer 18

Has a wide, shovel-shaped end and is used with a demo hammer for digging in softer materials

Question 19

What does an asphalt cutter do?

Answer 19

Used when removing asphalt

Question 20

What does a tamping tool do?

Answer 20

Used to pack down gravel or loose gravel

Question 21

What does a bushing tool do?

Answer 21

Makes decorative patterns on a concrete wall

Question 22

What does a blow-out bulb do?

Answer 22

A blow-out bulb and round brush are used to clean out holes before inserting anchors

Question 23

With a hammer drill what is the hammer mode for?

Answer 23

Small diam. holes up to 20 mm in concrete

Question 24

In a hammer drill, what is the rotary-only mode for?

Answer 24

Used to drill holes in steel and wood

Question 25

Which mode is used for drilling concrete with a Rotary hammer?

Answer 25

drill only mode, use a core bit