Insize 3228 Wide Range Three Points Internal Micrometers

Insize 3228 Wide Range Three Points Internal Micrometers

The Insize 3228 Wide Range Three Points Internal Micrometer series is a mechanical (non-digital) internal micrometer designed to cover large diameter ranges with just a handful of models, rather than requiring a separate tool for every inch increment. Each unit uses a three-point contact for even, consistent readings around the bore, along with carbide measuring faces and a ratchet stop for consistent measuring pressure. Covering ranges from 2"-2.8" up to 8"-12" (and metric equivalents from 50mm up to 300mm), the series is supplied complete with a setting ring on all models except the 3228-12, along with a manufacturer inspection certificate for traceable accuracy. This makes the 3228 series a practical choice for machine shops, fabrication facilities, and inspection labs that need to check large bores without a large collection of individual gauges.

Key Features

• Wide measuring range covers large bores in just a few models per size range
• Three-point contact delivers even, consistent readings around the bore
• Carbide measuring faces for long-lasting durability and accuracy
• Ratchet stop ensures consistent measuring pressure on every use
• Setting ring included on all models except the 3228-12
• Supplied with manufacturer inspection certificate for traceable accuracy

Specifications

Items Included

• Insize 3228 wide range three points internal micrometer in the selected range
• Setting ring (included on all ranges except 3228-12)
• Fitted storage case
• Manufacturer inspection certificate
• Instruction manual

Insize 3228 Wide Range Three Points Internal Micrometers Data Sheet