Holtests – Series 368 – Three Point/Two-Point Internal Micrometers

Starting at $539.10

These Holtests are versatile, self-centering three-point internal micrometers for the accurate and efficient direct-measurement of internal diameters. Three anvils, evenly spaced at 120° apart, contact the internal wall surfaces and find true alignment with the axis of the bore for accurate ID measurement.
TiN-coated measuring contact points(over 6mm/.275″ range models) provide excellent durability and impact resistance and allow the instrument to measure right to the bottom of a blind hole.
Highly durable because of carbide-tipped contact points (anvils).
Measurement can be taken closer to the bottom of the blind bore.
Can measure deep holes using an Extension rod (optional) which is available on models over 6mm (.275″) measuring range.
With Ratchet Stop for constant force.
Setting Rings for zero point adjustment are optional.
Supplied in fitted plastic case up to 100mm / 4”. Over 100mm / 4” supplied in wooden case.

Clear
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SKU: N/A Category:

Description

SKUItem TypeModelRangeInd. RangeAccuracyRemarksHead Assy Order No.Rings IncludedPriceBuyhf:att:pa_item-typehf:att:pa_color
368-021Inch-0.8-1in-.0001inCarbide Contact Point--$1,350.00
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inch
368-022Inch-.1-.12in-.0001inCarbide Contact Point--$1,350.00
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inch
368-023Inch-.12-.16in-.0001inCarbide Contact Point--$1,089.00
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inch
368-024Inch-.16-.2in-.0001inCarbide Contact Point--$1,089.00
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inch
368-025Inch-.2-.24in-.0001inCarbide Contact Point--$1,089.00
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inch
368-026Inch-.24-.28in-.0001inCarbide Contact Point--$1,089.00
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inch
368-261InchHT-.35”R.275-.35in-.0001inwith titanium coated contact points04AZB139-$539.10
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inch
368-262InchHT-.425”R.35-.425in-.0001inwith titanium coated contact points04AZB140-$539.10
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inch
368-263InchHT-5”R.425-.5in-.0001inwith titanium coated contact points04AZB141-$539.10
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inch
368-264InchHT-.65”R.5-.65in-.0001inwith titanium coated contact points04AZA721-$558.90
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inch
368-265InchHT-.8”R.65-.8in-.0001inwith titanium coated contact points04AZA722-$558.90
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inch
368-266InchHT-1”R.8-1in-.00015inwith titanium coated contact points04AZA730-$580.50
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inch
368-267InchHT-1.2”R1-1.2in-.00015inwith titanium coated contact points04AZA731-$580.50
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inch
368-268InchHT-1.6”R1.2-1.6in-.00015inwith titanium coated contact points04AZA739-$725.40
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inch
368-269InchHT-2”R1.6-2in-.00015inwith titanium coated contact points04AZA740-$765.00
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inch
368-270InchHT-2.5”R2-2.5in-.00015inwith titanium coated contact points04AZA754-$769.50
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inch
368-271InchHT-3”R2.5-3in-.00015inwith titanium coated contact points04AZA755-$835.20
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inch
368-272InchHT-3.5”R3-3.5in-.00015inwith titanium coated contact points04AZA756-$857.70
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inch
368-273InchHT-4”R3.5-4in-.00015inwith titanium coated contact points04AZA757-$897.30
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inch
368-274InchHT-5”R4-5in-.00025inwith titanium coated contact points04AZA783-$1,152.00
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inch
368-275InchHT-6”R5-6in-.00025inwith titanium coated contact points04AZA784-$1,305.00
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inch
368-276InchHT-7”R6-7in-.00025inwith titanium coated contact points04AZA785-$1,341.00
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inch
368-277InchHT-8”R7-8in-.00025inwith titanium coated contact points04AZA786-$1,386.00
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inch
368-278InchHT-9”R8-9in-.00025inwith titanium coated contact points04AZA787-$1,575.00
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inch
368-279InchHT-10”R9-10in-.00025inwith titanium coated contact points04AZA788-$1,764.00
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inch
368-280InchHT-11”R10-11in-.00025inwith titanium coated contact points04AZA789-$1,782.00
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inch
368-281InchHT-12”R11-12in-.00025inwith titanium coated contact points04AZA790-$1,827.00
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inch
368-916Inch Set-.275-.5in.275-.35 in,.35-.425 in,.425-.5 in-with extension rod-.35in DIA., .5in DIA.$1,989.00
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inch-set
368-917Inch Set-.5-.8in.5-.65 in,.65-.8 in-with extension rod/titanium coated contact points-.65in DIA.$1,341.00
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inch-set
368-918Inch Set-.8-2in.8-1 in,1-1.2 in,1.2-1.6 in,1.6-2 in-with extension rod/titanium coated contact points-1in DIA., 1.6in DIA.$3,069.00
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inch-set
368-919Inch Set-2-4in2-2.5 in,2.5-3 in,3-3.5 in,3.5-4 in-with extension rod/titanium coated contact points-2.5in DIA., 3.5in DIA.$4,374.00
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inch-set
368-920Inch Set-4-8in4-5 in,5-6 in,6-7 in,7-8 in-with extension rod/titanium coated contact points-5in DIA., 7in DIA.$6,696.00
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inch-set
368-926Inch Set-.08-.12in.08-1 in,.1-.12 in---.1in DIA.$2,871.00
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inch-set
368-927Inch Set-.12-.28in.12-.16 in,.16-.2 in,.2-.24 in,.24-.28 in---.16in DIA., .24im DIA.$4,581.00
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inch-set
368-001Metric-2-2.5mm-2µm---$1,350.00
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metric
368-002Metric-2.5-3mm-2µm---$1,350.00
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metric
368-003Metric-3-4mm-2µm---$1,089.00
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metric
368-004Metric-4-5mm-2µm---$1,089.00
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metric
368-005Metric-5-6mm-2µm---$1,089.00
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metric
368-161MetricHT-8R6-8mm-2µm-04AZB136-$539.10
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metric
368-162MetricHT-10R8-10mm-2µm-04AZB137-$539.10
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metric
368-163MetricHT-12R10-12mm-2µm-04AZB138-$539.10
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metric
368-164MetricHT-16R12-16mm-2µmwith titanium coated contact points04AZA719-$558.90
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metric
368-165MetricHT-20R16-20mm-2µmwith titanium coated contact points04AZA720-$558.90
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metric
368-166MetricHT-25R20-25mm-3µmwith titanium coated contact points04AZA728-$580.50
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metric
368-167MetricHT-30R25-30mm-3µmwith titanium coated contact points04AZA729-$580.50
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metric
368-168MetricHT-40R30-40mm-3µmwith titanium coated contact points04AZA737-$725.40
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metric
368-169MetricHT-50R40-50mm-3µmwith titanium coated contact points04AZA738-$765.00
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metric
368-170MetricHT-63R50-63mm-3µmwith titanium coated contact points04AZA750-$769.50
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metric
368-171MetricHT-75R62-75mm-3µmwith titanium coated contact points04AZA751-$803.70
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metric
368-172MetricHT-88R75-88mm-3µmwith titanium coated contact points04AZA752-$857.70
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metric
368-173MetricHT-100R87-100mm-3µmwith titanium coated contact points04AZA753-$897.30
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metric
368-174MetricHT-125R100-125mm-5µmwith titanium coated contact points04AZA775-$1,152.00
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metric
368-175MetricHT-150R125-150mm-5µmwith titanium coated contact points04AZA776-$1,242.00
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metric
368-176MetricHT-175R150-175mm-5µmwith titanium coated contact points04AZA777-$1,341.00
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metric
368-177MetricHT-200R175-200mm-5µmwith titanium coated contact points04AZA778-$1,386.00
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metric
368-178MetricHT-225R200-225mm-5µmwith titanium coated contact points04AZA779-$1,575.00
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metric
368-179MetricHT-250R225-250mm-5µmwith titanium coated contact points04AZA780-$1,701.00
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metric
368-180MetricHT-275R250-275mm-5µmwith titanium coated contact points04AZA781-$1,782.00
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metric
368-181MetricHT-300R275-300mm-5µmwith titanium coated contact points04AZA782-$1,827.00
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metric
368-906Metric Set-2-3mm2-2.5,2.5-3 mm---Ø2.5mm$2,871.00
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metric-set
368-907Metric Set-3-6mm3-4,4-5,5-6 mm---Ø4mm,Ø5mm$3,510.00
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metric-set
368-911Metric Set-6-12mm6-8,8-10,10-12 mm-with extension rod/titanium coated contact points-Ø8mm,Ø10mm$1,989.00
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metric-set
368-912Metric Set-12-20mm12-16,16-20 mm-with extension rod/titanium coated contact points-Ø16mm$1,341.00
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metric-set
368-913Metric Set-20-50mm20-25,25-30,30-40,40-50 mm-with extension rod/titanium coated contact points-Ø25mm,Ø40mm$3,069.00
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metric-set
368-914Metric Set-50-100mm50-63,62-75,75-88,87-100 mm-with extension rod/titanium coated contact points-Ø62mm,Ø87mm$4,203.00
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metric-set
368-915Metric Set-100-200mm100-125,125-150,150-175,175-200 mm-with extension rod/titanium coated contact points-Ø125mm,Ø175mm$6,633.00
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metric-set

Optional Accessories

SKUDescriptionPriceBuyhf:att:pa_colorhf:att:pa_item-type
952322Extension rod 100mm / 3.94” For range 6-12mm / .275-.5” models$86.18
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952621Extension rod 150mm / 5.9” For range 12-20mm / .5 - .8” models$82.17
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952622Extension rod 150mm / 5.9” For range 20-50mm / .8 - 2” models$103.50
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952623Extension rod 150mm / 5.9” For range 50-300mm / 2 - 12” models$145.80
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Features

These Holtests are versatile, self-centering three-point internal micrometers for the accurate and efficient direct-measurement of internal diameters. Three anvils, evenly spaced at 120° apart, contact the internal wall surfaces and find true alignment with the axis of the bore for accurate ID measurement.
TiN-coated measuring contact points(over 6mm/.275″ range models) provide excellent durability and impact resistance and allow the instrument to measure right to the bottom of a blind hole.
Highly durable because of carbide-tipped contact points (anvils).
Measurement can be taken closer to the bottom of the blind bore.
Can measure deep holes using an Extension rod (optional) which is available on models over 6mm (.275″) measuring range.
With Ratchet Stop for constant force.
Setting Rings for zero point adjustment are optional.
Supplied in fitted plastic case up to 100mm / 4”. Over 100mm / 4” supplied in wooden case.

Technical Data

Graduation: 0.001mm, 0.005mm*, .0001″ or .0002″* (*over 12mm or .5” models)

Optional Accessories

952322: Extension rod 100mm / 3.94” For range 6-12mm / .275-.5” models
952621: Extension rod 150mm / 5.9” For range 12-20mm / .5″ – .8” models
952622: Extension rod 150mm / 5.9” For range 20-50mm / .8″ – 2” models
952623: Extension rod 150mm / 5.9” For range 50-300mm / 2″-12” models

Additional information

Weight N/A
Dimensions N/A
Item Type

Inch, Inch Set, Metric, Metric Set

Model

-, HT-.35”R, HT-.425”R, HT-5”R, HT-.65”R, HT-.8”R, HT-1”R, HT-1.2”R, HT-1.6”R, HT-2”R, HT-2.5”R, HT-3”R, HT-3.5”R, HT-4”R, HT-5”R, HT-6”R, HT-7”R, HT-8”R, HT-9”R, HT-10”R, HT-11”R, HT-12”R, HT-8R, HT-10R, HT-12R, HT-16R, HT-20R, HT-25R, HT-30R, HT-40R, HT-50R, HT-63R, HT-75R, HT-88R, HT-100R, HT-125R, HT-150R, HT-175R, HT-200R, HT-225R, HT-250R, HT-275R, HT-300R

Head Assy. Order No.

-, 04AZB139, 04AZB140, 04AZB141, 04AZA721, 04AZA722, 04AZA730, 04AZA731, 04AZA739, 04AZA740, 04AZA754, 04AZA755, 04AZA756, 04AZA757, 04AZA783, 04AZA784, 04AZA785, 04AZA786, 04AZA787, 04AZA788, 04AZA789, 04AZA790, 04AZB136, 04AZB137, 04AZB138, 04AZA719, 04AZA720, 04AZA728, 04AZA729, 04AZA737, 04AZA738, 04AZA750, 04AZA751, 04AZA752, 04AZA753, 04AZA775, 04AZA776, 04AZA777, 04AZA778, 04AZA779, 04AZA780, 04AZA781, 04AZA782

Range

0.8-1in, .1-.12in, .12-.16in, .16-.2in, .2-.24in, .24-.28in, .275-.35in, .35-.425in, .425-.5in, .5-.65in, .65-.8in, .8-1in, 1-1.2in, 1.2-1.6in, 1.6-2in, 2-2.5in, 2.5-3in, 3-3.5in, 3.5-4in, 4-5in, 5-6in, 6-7in, 7-8in, 8-9in, 9-10in, 10-11in, 11-12in, .275-.5in, .5-.8in, .8-2in, 2-4in, 4-8in, .08-.12in, .12-.28in, 2-2.5mm, 2.5-3mm, 3-4mm, 4-5mm, 5-6mm, 6-8mm, 8-10mm, 10-12mm, 12-16mm, 16-20mm, 20-25mm, 25-30mm, 30-40mm, 40-50mm, 50-63mm, 62-75mm, 75-88mm, 87-100mm, 100-125mm, 125-150mm, 150-175mm, 175-200mm, 200-225mm, 225-250mm, 250-275mm, 275-300mm, 2-3mm, 3-6mm, 6-12mm, 12-20mm, 20-50mm, 50-100mm, 100-200mm

Individual Range

-, .275-.35 in,.35-.425 in,.425-.5 in, .5-.65 in,.65-.8 in, .8-1 in,1-1.2 in,1.2-1.6 in,1.6-2 in, 2-2.5 in,2.5-3 in,3-3.5 in,3.5-4 in, 4-5 in,5-6 in,6-7 in,7-8 in, .08-1 in,.1-.12 in, .12-.16 in,.16-.2 in,.2-.24 in,.24-.28 in, 2-2.5,2.5-3 mm, 3-4,4-5,5-6 mm, 6-8,8-10,10-12 mm, 12-16,16-20 mm, 20-25,25-30,30-40,40-50 mm, 50-63,62-75,75-88,87-100 mm, 100-125,125-150,150-175,175-200 mm

Accuracy

-, .0001in, .00015in, .00025in, 2µm, 3µm, 5µm

Rings Incl.

-, .35in DIA., .5in DIA., .65in DIA., 1in DIA., 1.6in DIA., 2.5in DIA., 3.5in DIA., 5in DIA., 7in DIA., .1in DIA., .16in DIA., .24im DIA., Ø2.5mm, Ø4mm,Ø5mm, Ø8mm,Ø10mm, Ø16mm, Ø25mm,Ø40mm, Ø62mm,Ø87mm, Ø125mm,Ø175mm

Remarks

-, Carbide Contact Point, with titanium coated contact points, with extension rod, with extension rod/titanium coated contact points