THR 110 Lecture Notes - Lecture 1: Miter Saw, Combination Square, Crosscut Saw (Song)
Document Summary
Hand tools human powered to make our lives easier . Measuring and marking: pencils and scribes (pointed metal, tape measures various lengths, can tell increments by counting the number of spaces between the lines, between any sequential inch marks, squares right (90 degree) angles. Cutting blades must always be sharp: saws not so popular. Important to note that a hack saw is used to cut metal. Most metal blades are fine toothed and are less likely to cut you when you touch them: utility or retractable knives use extreme caution, scissors. Joining and prying: hammers identified by the type of head (peen) and the opposite side of the head. Boring not really a category anymore: drill bits three types. Twist or spiral for wood, metal and plastic. Speed-bore or paddle (flat bit) for wood. Shaping and paring modifies the shape: chisels, sureform aka cheese graters. Box end wrenches can also ratchet if you buy them that way.
