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General bench work
Question | Answer |
---|---|
Name 3 facts about the vice | Made of cast iron, holding close prevents vibrations, soft jaws are used to protect piece |
What is a ball pein hammer made of | Head - high carbon steel, handle - ash or hickory |
Where should a hammer be held | At end of handle |
What are mallets | Mallets are used to form sheet metal |
What are mallets made of | They are made of soft material so they don't leave mark e.g. copper, lead, rawhide, plastic |
Name 2 types of saws | Senior hacksaw - used in engineering room, junior hacksaw - light work |
What material and orientation are the teeth on the blade | High speed steel, forward |
Why are the teeth staggered side to side | So the teeth cut a wider space than the blade so it doesn't get stuck, called a set |
Name 3 sets | Wave - LLLCRRRCLLLC Rakerr - LRCLRC Straight - LRLRLRLR |
What are files used for | Removing material, high carbon steel |
What are files classified by | Grade, shape, size |