PUNCH

PRICK PUNCH

PRICK PUNCH

The tip of the Prick punch is 40 degree.
A prick punch is similar to center punch is used for marking out.
Prick punch tip is sharped angled tip to produces a deeper indentation.
Prick punch is also known as a Dot punch.

CENTER PUNCH

CENTER PUNCH

Center punch is used to mark the center of a point.
It is used for mark the center of the hole when drilling holes.

SURFACE PLATE

SURFACE PLATE

It is flat plate used as the horizontal reference plane for precision inspection.

Comments

PARTS OF FILES

PARTS OF FILES Parts of file Knife Edge File Pillar File Round File Square File Triangle File Needle File

SCRIBING BLOCKS

TYPES OF SCRIBING BLOCKS SIMPLE SCRIBING BLOCK UNIVERSAL SCRIBING BLOCK POINT SCRIBER

Hexagonal Bolts & Nut, Square Nut with proportions and its line diagrams.

HEXAGONAL BOLTS AND NUT PROPORTIONS FOR HEXAGONAL BOLTS From Design Data Book Assuming Diameter (d) = 24 mm Size across flat (S) = 1.25d+6 mm Size across corner (e) = 1.155×S Height of the nut (h) = 0.8 d to d Angle =30° The length of threaded part Height (h) = 0.75 d to 0.8 d length (l) = 2d+5 mm, for bolt up to and including. length (l) = 2d+10mm, for bolts length above 80 mm and up to 200 mm. length (l) = 2d+20 mm, for lengths above 200 mm. V - THREAD WITH FLAT CREST AND ROOT Hexagonal bolt thread part (v- thread with flat crest and root) Pitch (P) = 3 mm Height (H) = 3 mm PROPORTIONS FOR HEXAGONAL NUT Assuming Diameter (d) = 24 mm Size across flat (S) = 1.25d+6 mm Size across corner (e) = 1.155×S Height of the nut (h) = 0.8 d to d Angle =30° PROPORTIONS FOR SQUARE NUT Size across the flat (s) = 1.5 d +3 mm Size across the corner e = √2 ×s Height of the nut h = 0.8 d to d

HAND VICE, PIPE VICE, PIN VICE AND TOOL'S MARKER'S VICE

HAND VICE, PIPE VICE, PIN VICE AND TOOL'S MARKER'S VICE HAND VICE PIPE VICE PIN VICE AND TOOL'S MARKER'S VICE

CARPENTRY TOOLS 04

CARPENTRY TOOL 04 Auger Wheel Brace Bradawl Ratchet Brace Block plane Compass plane Plough plane Smoothing plane Trying plane Metal Jack plane Firmer or outside Socket chisel Mortise chisel Bevelled edge Firmer chisel Paring Chisel Flat file Firmer chisel Bull nose rebate plane Spoke shave Router plane Rebate plane Scribing or inside Wooden Jack plane Parts of plane Gimlet

TYPES OF CHISELS

TYPES OF CHISELS Parts of chisel Cutting Angle for cold chisel Mortise chisel Socket chisel Diamond point chisel Half round chisel Cross cut chisel Flat chisel

MECHDESIGN

Search This Blog