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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