Mitutoyo 368-912 Holtest Bore Micrometer Set 12-20mm

The Mitutoyo Holtest Series 368 non-interchangeable head sets give you a complete kit for measuring bores: several three-point micrometer heads, the setting rings to zero them, a 150mm extension rod, 2 spanners and a hex wrench. They suit toolrooms, inspectors and quality control teams who measure bores on a regular basis. Three contact points centre the micrometer in the hole, and it can measure close to the bottom of a blind hole.

Two sets are available. The 368-912 covers 12 to 20mm with two heads, and the 368-913 covers 20 to 50mm with four heads. Both read to 0.005mm. The measuring range cannot be enlarged with heads that are not supplied with the set, because the accuracy is then not guaranteed.

Where this product is used

• Measuring bores in a set range with matching setting rings
• Checking blind holes close to the bottom
• Reaching deeper holes with the supplied extension rod

Features

• Three-point contact for stable, self-centring measurement
• Graduation of 0.005mm
• Setting rings supplied with the set
• 150mm extension rod supplied with the set
• 2 spanners and a hex wrench supplied
• Titanium-coated measuring pins on the three-point type

Key specifications

Supplied with

• Micrometer heads
• Setting rings
• Extension rod (150mm), 1 pc
• Spanner, 2 pcs
• Hex wrench, 1 pc

Choosing the right option