This is a tap and dye machine or cutting tool, which is used when creating screw threads.

An orthographic illustration of a die displaying sides 1, 2, and 4.

An orthographic illustration of a die displaying sides 1, 3, and 2.

An orthographic illustration of a die displaying sides 1, 4, and 5.

An orthographic illustration of a die displaying sides 1, 5, and 3.

An orthographic illustration of a die displaying sides 2, 1, and 3.

An orthographic illustration of a die displaying sides 2, 3, and 6.

An orthographic illustration of a die displaying sides 2, 4, and 1.

An orthographic illustration of a die displaying sides 2, 6, and 4.

An orthographic illustration of a die displaying sides 3, 1, and 5.

An orthographic illustration of a die displaying sides 3, 2, and 1.

An orthographic illustration of a die displaying sides 3, 5, and 6.

An orthographic illustration of a die displaying sides 3, 6, and 2.

An orthographic illustration of a die displaying sides 4, 1, and 2.

An orthographic illustration of a die displaying sides 4, 2, and 6.

An orthographic illustration of a die displaying sides 4, 5, and 1.

An orthographic illustration of a die displaying sides 4, 6, and 5.

An orthographic illustration of a die displaying sides 5, 1, and 4.

An orthographic illustration of a die displaying sides 5, 3, and 1.

An orthographic illustration of a die displaying sides 5, 4, and 6.

An orthographic illustration of a die displaying sides 5, 6, and 3.

An orthographic illustration of a die displaying sides 6, 2, and 3.

An orthographic illustration of a die displaying sides 6, 3, and 5.

An orthographic illustration of a die displaying sides 6, 4, and 2.