Hand Tools Part A

Question 1

Hacksaw blades are sized by ?

Answer 1

Length, width, and thickness

Length of blade is measured between the centres of the holes

Question 2

Saw blade pitch refers to?

Answer 2

Saw blade teeth per inch

Question 3

How many teeth need to be in contact at all time when cutting metal with a hacksaw?

Answer 3

3 at all times

Question 4

14 -pitch is good for what types of metal
18 - pitch
24 - pitch
32 - pitch

Answer 4

Cutting soft, thick, heavy sections of steel

Alloy steels, iron pipe GENERAL SHOP USE

Small cross sections - high carbon steel

Thin sheet metal and tubbng

Question 5

Some simple facts to choose the right blade pitch:

Answer 5

Course blade - soft materials
Fine pitch - hard materials

Question 6

What is the difference between blade kerf and blade set?

Answer 6

Blade set is the way the individual teeth are bent of line with the blade body. Preventing the blade from binding.

Kerf is the width of cut from the blade

Question 7

If a hack saw blade wanders, that means it is?

Answer 7

Worn out and needs to be replaced

Question 8

What is the purpose of the safe edge on a file?

Answer 8

Allows filing up against a should without damaging the finished surface

Question 9

Types of file cuts?

Answer 9

Single cut - produce smooth finish

Double cut - effortless chip removal

Rasps - generally used in woodworking

Curved tooth - soft materials

Question 10

Coarseness of file in sequence:

Answer 10

• rough
• course
• bastard
• second cut
• smooth
• dead smooth

Question 11

Five main classes of files?

Answer 11

• mill or saw file (American pattern) saw sharpening and lathe work
• machinist - rapid metal removal
• Swiss pattern - for fine hand finishing and deburring

Question 12

Rotary burs are good for use on softer materials while rotary files are best for?

Answer 12

Harder tool steels

Question 13

Filing in a bench requires what tools?

Answer 13

1: double cut bastard and single cut smooth with handles
2: a file card
3: a bench vise with soft jaws
4: a steel rule
5: solid square

Question 14

Height of the surface being filed is level with what body part?

Answer 14

Elbow

Question 15

Why should you not run your finger over workpiece when filing?

Answer 15

Oil and grease adheres to the work and makes the file slide instead of cut

Question 16

To remove lots of material you use the cross filing method, when a smooth finish is required you would?

Answer 16

Draw file with a smooth single cut file

Question 17

A dirty file will do what?

Answer 17

Put deep gouges in material

Question 18

Different types of chisels?

Answer 18

Flat or cold chisel - between 40 and 70 degree edge

Cape chisel- cuts keyseats

Round nose chisel - oil grooves for journal bearings

Round nose - squaring 90 degree corners

Question 19

Why is over heating tools when sharpening bad?

Answer 19

Takes out the tempering

Question 20

Enter punches have an included angle of 90 degrees and prick punches have an included angle of?

Answer 20

30 to 60

Question 21

Force in a crescent wrench should be?

Answer 21