Description
SPI Small Hole Gage: Flat Bottom Type, 0.400 – 0.500″ – 30-429-5
- Full radius measuring faces with flat bottom, ideal for measuring shallow holes, slots, grooves
- Size adjustment by knurled knob
- Final size is obtained by measuring over the contact points with a micrometer
- Gaging surface is fully hardened
- Satin chrome finish
- Extra long for gaging deep holes and slots
See all SPI Small Hole Gages: Flat Bottom Type

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