SERIES 368 Holtest 3 Point Internal Micrometer
 
Measurement applications
With 3 equally spaced anvils accurate alignment within a bore ensures consistent diameter measurements

Series 368 Metric Holtest sets
No.RangeRing GaugePrice
368-901-10 6-12mm 177-125 dia. 8mm/177-126 dia. 10mm £723.00
368-991 12-20mm 177-177 dia. 16mm £499.00
368-992 20-50mm 177-139 dia. 25mm/177-290 dia. 40mm £1220.00
368-993 50-100mm 177-314 dia. 62mm/177-318 dia. 87mm £1810.00
368-994 100-200mm 177-298 dia. 125mm/177-302 dia. 175mm £2480.00
Features
• 3 point contact (Self centering)
• Contact Points are made of hardened alloyed steel
• Can be fitted with extension rods for deeper holes
• Boxed sets are also supplied with Extension Rod (100 or 150mm), Spanner and Hex-Wrench
• Clear graduations on satin chrome finish
Accuracy
6-20mm 2µm/0.0001"
20-100mm 3µm/0.00015"
100-300mm 5µm/0.0002"
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