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For a power hacksaw blade, pitch means:

  • A.Number of teeth per 10 mm
  • B.Number of teeth per 20 mm
  • C.Number of teeth per 10 cm
  • D.Number of teeth per inch

Answer: D

Pitch of a power hacksaw blade means the number of teeth per inch.

Hacksaw blades are specified by teeth per inch (25 mm). A coarse power hacksaw blade has about 4 to 6 teeth per inch, a medium one 10 to 14, and fine blades 18 to 32. The same count is often written as teeth per 25 mm.

Teeth per 10 mm, per 20 mm or per 10 cm are not units used to grade blades. Strictly, pitch is the distance between adjacent teeth, but trade usage states it as a teeth-per-inch count, which is the reading the question takes.

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