Balance Spring

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 Double Scale • Vernier Caliper Double Scale Sturdy construction. • Measures in inches and cm. • 150 mm x 0.05 mm / 6 inch x 1/128 inch

Polished brass, in hardwood case with hinged lid. Divided compartment with dust cover holds nickel-silver and aluminum fractions. With chrome plated brass forceps. Capacity 1 mg to 100gm. Capacity 1 mg to 200gm. Capacity 1 mg to 500gm. Capacity 1 mg to 1000gm. Capacity 1 mg to 2000gm.

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