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Starrett 666-20 feeler gauge roll 0.02 in 25 ft uncoated steel in cardboard dispensing case

Starrett

Starrett 666-20 Feeler Gauge Stock Roll 0.02 in 25 ft Uncoated measurement tool

SKU CH-HRGK-3180N

Precision feeler gauge stock roll provides 25 ft of 0.02 in steel blade in a dispensing case for gap measurement

  • Precision shimming with ±0.00055 in tolerance
  • 25 ft roll provides extended cutting length
  • Uncoated steel blade resists surface contamination
  • Cardboard dispensing case protects and organises stock
  • Inch and metric markings simplify dual-system work

Starrett 666-20 Feeler Gauge Stock Roll

The Starrett 666-20 is a precision feeler gauge stock roll designed for mechanics and technicians who need to cut custom shims or gap blades on demand. It provides a continuous 25 ft length of uncoated steel strip marked with inch and metric equivalents for versatile workshop use.

Thermals noise and power draw

As a passive steel measurement tool, the 666-20 generates no heat, emits no noise and draws no power during normal use. Its uncoated finish and straight blade style ensure consistent tactile feedback without electrical or thermal interference.

Sustained load behaviour

Under repeated measuring tasks the roll maintains its stated tolerance of +/- 0.00055 in across the full 25 ft length. The cardboard dispensing case protects the stock from deformation so thickness accuracy remains reliable throughout extended sessions.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $49.99
Typical for this category: the median of 3,030 items is $54.99.

Specifications

Product
Brand nameSTARRETT

Questions about this item

How do I install the 0.02 in feeler gauge stock from the cardboard dispensing case, and what step do people often get wrong?

Pull the required length straight from the case, cut it cleanly with snips, and verify the blade lies flat; the common error is bending the 1/2 in wide steel strip while unrolling, which ruins the +/- 0.00055 in tolerance.

What maintenance or replacement will the uncoated steel feeler gauge roll need later?

Wipe each cut piece with a light oil after use to prevent rust on the uncoated surface; replace any section that shows nicks, corrosion, or permanent set because the 0.02 in thickness must stay within the stated tolerance.

What limit appears first when the 25 ft roll is used continuously for precision gaps?

The +/- 0.00055 in thickness tolerance is the first limit; if the steel work-hardens or wears unevenly during sustained use, the blade will fall outside that tolerance before the roll length is exhausted.

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