Iwanson Decimal Spring Caliper

Description

Iwanson Decimal Spring Caliper

Thickness matters in crown and lab work. This Iwanson spring caliper reads in decimal units on a 100 mm scale. The catalogue lists it for metal and porcelain, so it suits checking copings and crowns.

What the Scale Gives You

A decimal scale lets you read fine steps of thickness. In addition, the catalogue gives the size as 100 mm. So the iwanson spring caliper is a compact tool for routine checks at the bench.

Checking Metal Thickness

Place the caliper tips on each side of the metal. Then let the spring close the tips gently. Next, read the scale. Also take readings at several points, since thickness can vary across a coping.

Checking Porcelain

Porcelain needs even thickness for strength and looks. Therefore, measure at the cusps and the margins. If a spot reads thin, adjust before you finish the crown.

Good Habits for Accurate Readings

• Clean the tips before each reading.
• Close the tips and check the zero first.
• Hold the part steady while you read.
• Record the value right away.

Looking After the Spring

Inside, a spring gives a steady, light force. So avoid forcing the tips wide open, because that can weaken the spring. Also store the caliper where it will not take knocks. With that care, your iwanson spring caliper keeps reading true for years.

Iwanson Caliper Order Information

Our spec covers this caliper, and it passes a look in the United States. The caliper is stainless steel that conforms to ASTM F899. Should the caliper show a factory fault, it falls inside three years against manufacturing defects; we then put it right. Note that it ships non-sterile; clean it before use, and you can reuse it. For a longer rule, see our Castroviejo calipers. Explore the orthodontic and lab range or our FAQ page.

Professional use only. Read our cleaning advice and shipping info.