Depth

Effective diameter

Pitch

Minor diameter

Thread chasing dial method

Method by moving the top slide

Method using slotted face plate

Dividing the first drive method

Acme thread

Buttress thread

Saw-tooth thread

Worm thread

Pitch

Depth

Helix angle

Lead

Connecting spindle gear to fixed stud gear

Connecting fixed stud gear to quick change gear box

Connecting quick change gear box to lead screw

Connecting lead screw to changing dial