jj104 workshop technology chapter2 hacksaw
DESCRIPTION
JJ104 Workshop TechnologyTRANSCRIPT
CHAPTER2:HAND TOOL (HACKSAW)
INTRODUCTION
Hack saw is a cutting tool for sawing all metals except hardened steel. It consists of a solid frame or adjustable frame with a handle, wing nut, and blade.
Types of a hacksaw
Various Settings of Teeth
SAFETY MEASURES
Use a perfect hacksaw Ensure that the saw blade is fixed to the
frame in the direction of the saw teeth Ensure that the saw blade is properly
tightened Avoid the use of a new blade to finish the
sawing work Grip tight the work piece to the clamp