Table of Content
Hacksaw frame and blade
- Hacksaw frame
- Solid frame
- Adjustable frame
- Adjustable frame
- Parts of hacksaw
- Parts of hacksaw blade
- All-hard blade
- Flexible blade
- Pitch of the blade
- Specification
- Example
- Staggered set
- Wave set
- Selection of blade
- Pitch selection
- Bench vice
- Type of vices
- Quick releasing
- Pipe vice
- Parts of a bench vice
- Vice clamps or soft jaws
- Hand vice
- Leg vice
- Main parts of a leg vice
- Pin vice
- Toolmaker’s vice
Drill (Parts and functions)
- Parts of a Drill
- Point
- Shank
- Tang
- Body
- Flutes
- Land/Margin
- Body Clearance
- Web
- Drill Angles
- Angles
- Point Angle/Cutting Angle
- Helix Angle
- Rake Angle
- Clearance Angle
- Chisel Edge Angle/Web Angle
- Designation of Drills
- Example
- Drilling defects and causes
- Oversized holes
- Overheated drills
- Rough holes
- Unequal flow of chips
- Broken drill or split web
- Chisel
- Parts of a chisel
- Flat chisels
- Cross-cut or cape chisels
- Half-round nose chisels
- Diamond point chisels
- Web chisels/punching chisels
- Angles of chisel
- Point angles and materials
- Rake angle
- Clearance angle
- Radius gauges
Countersinking
- Angles for countersinking
- Countersinks
- Countersinks with pilot
- Countersink whole sizes
- Counter boring and spot facing
- Counter boring
- Counter bore
- Counter bores: sizes and specification
- Spot facing
- Reamers
- What is a ream?
- Advantages of ‘reaming’
- Classifying of reamers
- Parts of a hand reamer
- Whole size for riming
- Calculating drill for reamer
- Finished size
- Undersize
- Oversize of drill hole
- Reamer hole undersize
- Surface finish rough
- Drilling machines
- The Sensitive Bench Drilling Machine
- Drill – Holding Devices
- Drill Chuck
- Taper Sleeves and Sockets
- Work – holding devices
- The machine vice
- Clamps and Bolts
- Cutting speed and RPM
- Feed in drilling
HANDS taps and wrenches
- Use of Hand Taps
- Feature
- Types of Taps in a set
- Tap Wrenches
- Double-ended Adjustable Tap Wrench or Bar Type Tap Wrench
- T-Handle Tap Wrench
- Die and die stock
- Uses of Dies
- Solid Type Tap Wrench
- Types of Dies
- Dircular Split Die/Button Die
- Half Die
- Adjustable Screw Plate Die
- Die Nut
- Tap Drill Size
- What is tap drill Size?
- Tap Drill Size for Different Threads
- Compare this with the table of tap drill sizes for ISO metric threads.
- Blank size for external threading
- Why should the blank size be less?
- What should be the blank size?
- Radial drilling machines
- Feature
- Drilling machines (Portable type)
- Necessity
- Types
- Power operated drilling machines
- Electric hand drill
- Hand operated drilling machines
The Indian standard system of limits and fits Terminology
- Basic size
- Actual size
- Limits of size
- Maximum limit of size
- Minimum limit of size
- Hole
- Shaft
- Deviation
- Upper deviation
- Lower deviation
- Actual deviation
- Tolerance
- Zero line
- Fundamental deviation
- Fundamental tolerance
- Tolerance size
First and their classification as per the Indian standard
- Fit
- Expression of a fit
- Clearance fit
- Maximum clearance
- Minimum clearance
- Interference
- Inference fit
- Maximum interference
- Minimum interference
- Transition fit
- Hole basis system
- Shaft basis system
- The B.I.S. System of limits and fits- Reading the standard chart
- Screw thread measurement (gauges)
- Screw pitch gauge
- Thread gauge
- Ring thread gauge
- Screw thread caliper gauge
- Screw thread micrometer
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