Slide 1 Slide 2 Safe Use of Agricultural Mechanics Hand Tools 6831.14 Slide 3 Sharpen Cutting Tools Hand tools used for cutting should be sharp to improve safety and efficiency Slide 4 Use Proper Tool Using the proper tool for the job can reduce or eliminate injuries Slide 5 Teeth Fine or small teeth on a saw blade make a smoother cut, but coarse or large teeth cut faster Slide 6 Slide 7 Adjustable Wrench Is used to turn various size nuts and bolts Slide 8 Slide 9 Brick Trowel Is used to place and spread mortar Slide 10 Slide 11 Ball Peen Hammer Is used to hammer metal objects such as punches, chisels, or parts of small engines Slide 12 Slide 13 Cold Chisel Is used to cut metal Slide 14 Slide 15 Combination Square Is used to mark 45 degree and 90 degree angles Slide 16 Slide 17 Combination Wrench Is used to turn both hex and square nuts Slide 18 Concrete Float Is used to level concrete Slide 19 Slide 20 Coping Saw Is used to cut curves in wood Slide 21 Slide 22 Countersink Is used to flare the top of a hole to recess the head for a flathead screw or bolt Slide 23 Slide 24 Crosscut Saw Blade is used to cut across the grain of wood Slide 25 RIP SAW BLADE CROSS CUT BLADE Slide 26 Hacksaw Is used to cut metal, and there should be at least three teeth in contact with the metal Slide 27 Slide 28 Long Nose Pliers Are used to reach into recessed areas Slide 29 Slide 30 Measuring Tools For wood are usually divided into 16 parts per inch or 116ths Slide 31 Slide 32 Miter Saw Is used to cut angles Slide 33 Slide 34 Nail Hammer Is used to drive nails to fasten one board to another Slide 35 Rip Nail Slide 36 Ripping Hammer Is used to remove wood and to drive nails Slide 37 Rip Saw Blade Is used to cut with the grain of the wood Slide 38 Slip Joint Pliers Are used to hold various sizes of materials Slide 39 Slide 40 T Bevel Is used to find and transfer various angles Slide 41 Slide 42 Try Square Is used to mark 90 degree angles Slide 43 Slide 44 Vise Grip Pliers Are used for extra firm holding or gripping Slide 45 Slide 46 Wire Strippers Are used to remove insulation from electrical wires, to gauge wires sizes, and to crimp terminals Slide 47 Slide 48 Slide 49 Wrecking Bar Is used to rip and pry wood Slide 50 Slide 51 Hammer Hold handle near the end away from hammer head to improve accuracy and leverage Slide 52 Slide 53 Hammer Large nails require the use of a heavier hammer than small nails Slide 54 Hammer Using nails to fasten wood is fast, but is the weakest method Slide 55 Hammer Many types of nails are available The correct type should be used for the job Slide 56 Hammer Common nails are use most in construction, but finishing nails should be used when the head needs to be set below the surface of the wood Slide 57 Slide 58 Measuring and Marking Tools Measure twice, cut once is a good rule to follow to reduce the amount of wasted time and materials Slide 59 Measuring and Marking Tools Most wood measuring tools are divided into 116 marks Slide 60 Measuring and Marking Tools The shortest lines on the rule are usually 116 measurements Slide 61 Measuring and Marking Tools The string of a chalk line should be stretched tight and snapped in the middle to mark an accurate long straight line Slide 62 Slide 63 Measuring and Marking Tools A scratch awl, file, or scriber can be used to mark a scratch on metal Slide 64 Measuring and Marking Tools Soapstone is used to mark metal without leaving a permanent scratch Slide 65 Slide 66 Metal Cutting Tools Files since files only cut on the forward stroke, pressure should be reduced on the backstroke Slide 67 Slide 68 Metal Cutting Tools Hacksaws teeth should point away from the handle because most cutting is done on forward strokes Slide 69 Slide 70 Metal Cutting Tools Taps and dies When used to cut threads in metal, oil should be used for lubrication Slide 71 Slide 72 Slide 73 Screwdrivers Used the correct size and type for the job Slide 74 Screwdrivers A heavy duty screwdriver has a square shank so that a wrench can be used to help remove large screws Slide 75 Slide 76 Saws DO NOT saw out the marked line because board will be too small if it was measured and marked accurately Slide 77 Saws Saw on the waste side of the mark Slide 78 Saws Hand crosscut saw is used to cut off ends of boards across the grain Slide 79 Slide 80 Saws Hand ripsaw is used to rip a board Slide 81 Saws Coping saw has a very narrow, thin blade that can be removed and inserted in a hole to saw out a hole in the middle of a board Slide 82 Saws A coping saw can be use to cope molding and saw curves Slide 83 Squares Handle should be held firmly against edge of board Slide 84 Squares The combination square can be used as a miter square, plumb bob, level, depth gauge, marking gauge, and inside and outside try square Slide 85 Slide 86 Slide 87 Slide 88 Squares A framing square has rafter tables Slide 89 Sanding Sand with the grain and use fine or very fine sandpaper to prevent scratches Slide 90 Sanding Coarse sandpaper is used to remove large amounts of wood when sanding, but it leaves scratches in the wood Slide 91 Safe Use of Agricultural Mechanics Hand Tools 6831.14
