Special training and certification is required before using any ...

[michelleunicorn]

Special training and certification is required before using any kind of _____.
 
  a. powder-actuated fastening tool
  b. electrically powered tool
  c. pneumatic nail or screw system
  d. hydraulic lift or press tool

Question 2

A grinder can catch on rough material edges and shift around, especially when using rotary bits called _____.
 
  a. burr bits
  b. backing bits
  c. kerf bits
  d. saber bits

[IRincones]

Answer to Question 1

a

Answer to Question 2

a

[michelleunicorn]

Thanks for the timely response, appreciate it

[Hdosisshsbshs]

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