35) The diameter of a drill is measured across the

36) For the same cutting speed, larger diameter drill will have _____ rpm compared to smaller diameter drills

37) Which of the following is used for cutting keyways and grooves?

38) In a vernier caliper 50 divisions of the vernier scale occupy 49 divisions on the main scale. The main scale reading is 40 mm and 20th vernier scale division coincides with the main scale. What is the reading?

39) A right angle is