Hook’s Law Apparatus

Spherometer Laboratory • Brass dial head 40 mm diameter, mounted on stainless steel screw. • Head divided into 100 divisions, reading to 0.01 mm and registering on vertical scale 10-0-10. • Frame with three legs of stainless steel. • Distance between two legs is 40 mm approximately. • Pitch 1mm.

Vernier Calipers Digital • Hardened Stainless Steel construction, bright LCD display. • Easy push button Metric English conversion. • Operates on one 1.5V silver oxide battery (included). • Automatic shut off. • 0-150mm x 0.01 mm / 6 inches x 0.0005 In. • Comes complete with foam lined sturdy case, and instructions.

Micrometer Screw Gauge • Strong rugged metal construction. • Economical, suitable for all uses, teaching, demonstration, labs, machine shops. • Measuring screw handle, Satin finish with friction knurling for easy rotation. • With locking mechanism to hold measurements. • 25 x 1 mm, reads to 0.01 mm. • Supplied with hex wrench for zero adjustment and plastic case for storage.

Screw Gauge Micrometer Demonstration • About 200 mm long, made of aluminum. • Black spray painted individually packed. • Measurements are approximate