Tools Chap 2 Flashcards
How are files categorised (4)
Length
Section
Grade
Cut
Grades of file (4)
Bastard
Second
Smooth
Dead smooth
Cut of file
Single
Double
Types of file (8)
Hand
Flat
Half round
Round
Square
Knife edge
Rasp
Triangular
Types of hammers
Ball pein
Cross pein and straight pein
Nylon faced
What’s used to hold small jobs for working on
Toolmakers clamp
What is a Engineers rule made from
High carbon steel
How are scribers sharpened
Closing the legs and then outside of the legs sharpened on a oilstone
Hacksaw
How much teeth does a Fine-toothed blade have ?
24-32 teeth per inch
Hacksaw
How much teeth does a coarse toothed blade have ?
18 teeth
How much teeth does a Junior hacksaw have?
32 teeth per inch
Radial hacksaw blades
Cutting contours, radii and straight lines
How are chisels sharpened
Emery wheel (grindstone)
How are V blocks classified?
By maximum diameter of the work they can hold
How are V blocks supplied?
In pairs and stamped with an identification mark
What degree is the protractor head accurate to?
Up to one degree
Use of Vernier calliper 4 c’s
Calibrate
Clean
Close
Check
Three types of standard gauges ?
Plug
Calliper
Profile
Three types of pneumatic hand drills
Straight
Angled
Pistol
What types of tools does the pneumatic drill hold within the chuck
Twist drill
Cone cutter
Rotational files
Hole saws
Abrasive pads
Countersinking tool
What must the pneumatic rivet hammer be pressed against at all times when operating?
Hard surface
What should you do if the air hose breaks?
Turn off the air supply
DO NOT try and catch the hose
Two grades of twist drill
Carbon steel
High speed steel
What material usually doesn’t need lubrication
Cast iron
Brass
The centre punch mark must be :
Accurate in position
Large enough to take the chisel edge of the drill
Imperial reamer
1 in 48
Metric reamer
1 in 50
What is used for cutting internal threads
Taps
What are the three types of taps?
Taper
Second
Plug
External thread gen
Male
Steps of Installing a wire thread insert
Drill the hole
Tap hole
Install insert
Break the tang (with tang break off tool)
What are the classes of fit? 1-5
Class 1 - loose
Class 2 - free fit
Class 3 - medium
Class 4 - close fit
Class 5 - tight fit