- 1306 - Bass Tool & Supply, Inc. Houston Email Fax Toll Free www.basstool.com (713) 682-1889 [email protected] (713) 681-4931 800-442-0042 RANGE MEASURING METHOD CONTACT-POINT MATERIAL 2-3mm/.08-.12" Two-point method Hardened steel (HRC 60.5 or more) 3-6mm/.12-.28" Two-point method Hardened steel (HRC 60.5 or more) 6-12mm/.28-.5" Three-point method Carbide over 12mm/over .5" Three-point method TiN coating (1700-2000Hv) RANGE PART# MTI- INDIVIDUAL RANGE SETTING RINGS INCLUDED REMARKS .08"-.12" 368-926 .08-.1", .1-.12" .1" DIA. --- .12"-.28" 368-927 .12-.16", .16-.2", .2-.24", .24-.28" .16" DIA., .24" DIA. --- .275"-.5" 368-916 .275-.35", .35-.425", .425-.5" .35" DIA., .5" DIA. with extension rod .5"-.8" 368-917 .5-.65", .65-.8" .65" DIA. with extension rod* .8"-2" 368-918 .8-1", 1-1.2", 1.2-1.6", 1.6-2" 1" DIA., 1.6" DIA. with extension rod* 2"-4" 368-919 2-2.5", 2.5-3", 3-3.5", 3.5-4" 2.5" DIA., 3.5" DIA. with extension rod* 4"-8" 368-920 4-5", 5-6", 6-7", 7-8" 5" DIA., 7" DIA. with extension rod* RANGE PART# MTI- INDIVIDUAL RANGE SETTING RINGS INCLUDED REMARKS 2-3 mm 368-906 2-2.5, 2.5-3 mm ∅2.5 mm --- 3-6 mm 368-907 3-4, 4-5, 5-6 mm ∅4 mm,∅5 mm --- 6-12 mm 368-911 6-8, 8-10, 10-12 mm ∅8 mm, ∅10 mm with extension rod 12-20 mm 368-912 12-16, 16-20 mm ∅16 mm with extension rod* 20-50 mm 368-913 20-25, 25-30, 30-40, 40-50 mm ∅25 mm, ∅40 mm with extension rod* 50-100 mm 368-914 50-63, 62-75, 75-88, 87-100 mm ∅62 mm, ∅87 mm with extension rod* 100-200 mm 368-915 100-125, 125-150, 150-175, 175-200 mm ∅125 mm, ∅ 175 mm with extension rod* RANGE PART# MTI- ACCU. .08-.1" 368-021 ±..0001" .1-.12" 368-022 ±..0001" .12-.16" 368-023 ±..0001" .16-.2" 368-024 ±..0001" .2-.24" 368-025 ±..0001" .24-.28" 368-026 ±..0001" .275-.35" 368-261 ±..0001" .35-.425" 368-262 ±..0001" .425-.5" 368-263 ±..0001" .5-.65"* 368-264 ±..0001" .65-.8"* 368-265 ±..0001" .8-1"* 368-266 ±.00015" 1-1.2"* 368-267 ±.00015" 1.2-1.6"* 368-268 ±.00015" 1.6-2"* 368-269 ±.00015" 2-2.5"* 368-270 ±.00015" 2.5-3"* 368-271 ±.00015" 3-3.5"* 368-272 ±.00015" 3.5-4"* 368-273 ±.00015" 4-5"* 368-274 ±.00025" 5-6"* 368-275 ±.00025" 6-7"* 368-276 ±.00025" 7-8"* 368-277 ±.00025" 8-9"* 368-278 ±.00025" 9-10"* 368-279 ±.00025" 10-11"* 368-280 ±.00025" 11-12"* 368-281 ±.00025" RANGE PART# MTI- ACCU. 2-2.5mm 368-001 ±2µm 2.5-3mm 368-002 ±2µm 3-4mm 368-003 ±2µm 4-5mm 368-004 ±2µm 5-6mm 368-005 ±2µm 6-8mm 368-161 ±2µm 8-10mm 368-162 ±2µm 10-12mm 368-163 ±2µm 12-16mm* 368-164 ±2µm 16-20mm* 368-165 ±2µm 20-25mm* 368-166 ±3µm 25-30mm* 368-167 ±3µm 30-40mm* 368-168 ±3µm 40-50mm* 368-169 ±3µm 50-63mm* 368-170 ±3µm 62-75mm* 368-171 ±3µm 75-88mm* 368-172 ±3µm 87-100mm* 368-173 ±3µm 100-125mm* 368-174 ±5µm 125-150mm* 368-175 ±5µm 150-175mm* 368-176 ±5µm 175-200mm* 368-177 ±5µm 200-225mm* 368-178 ±5µm 225-250mm* 368-179 ±5µm 250-275mm* 368-180 ±5µm 275-300mm* 368-181 ±5µm RANGE PART# MTI- ACCURACY .5-.65" 368-864 ±.0001" .65-.8" 368-865 ±.0001" .8-1" 368-866 ±.00015" 1-1.2" 368-867 ±.00015" 1.2-1.6" 368-868 ±.00015" 1.6-2" 368-869 ±.00015" 2-2.5" 368-870 ±.00015" 2.5-3" 368-871 ±.00015" 3-3.5" 368-872 ±.00015" 3.5-4" 368-873 ±.00015" 4-5" 368-874 ±.00025" 5-6" 368-875 ±.00025" 6-7" 368-876 ±.00025" 7-8" 368-877 ±.00025" 8-9" 368-878 ±.00025" 9-10" 368-879 ±.00025" 10-11" 368-880 ±.00025" 11-12" 368-881 ±.00025" RANGE PART# MTI- ACCURACY 12-16mm 368-764 ±2µm 16-20mm 368-765 ±2µm 20-25mm 368-766 ±3µm 25-30mm 368-767 ±3µm 30-40mm 368-768 ±3µm 40-50mm 368-769 ±3µm 50-63mm 368-770 ±3µm 62-75mm 368-771 ±3µm 75-88mm 368-772 ±3µm 87-100mm 368-773 ±3µm 100-125mm 368-774 ±5µm 125-150mm 368-775 ±5µm 150-175mm 368-776 ±5µm 175-200mm 368-777 ±5µm 200-225mm 368-778 ±5µm 225-250mm 368-779 ±5µm 250-275mm 368-780 ±5µm 275-300mm 368-781 ±5µm RANGE PART# MTI- INDIVIDUAL RANGE SETTING RINGS INCLUDED .5"-.8" 368-995 .5-.65", .65-.8" .65" DIA. .8"-2" 368-996 .8-1", 1-1.2", 1.2-1.6", 1.6-2" 1" DIA., 1.6" DIA. 2"-4" 368-997 2-2.5", 2.5-3", 3-3.5", 3.5-4" 2.5 DIA., 3.5" DIA. 4"-8" 368-998 4-5", 5-6", 6-7", 7-8" 5" DIA., 7" DIA RANGE PART# MTI- INDIVIDUAL RANGE SETTING RINGS INCLUDED 12-20 mm 368-991 12-16, 16-20mm ∅16mm 20-50mm 368-992 20-25, 25-30, 30-40, 40-50mm ∅25mm, ∅40mm 50-100mm 368-993 50-63, 62-75, 75-88, 87-100mm ∅62mm, ∅87mm 100-200mm 368-994 100-125, 125-150, 150-175, 175-200mm ∅125mm, ∅175mm HOLTEST - SERIES 368 Three Point/Two Point Internal Micrometers 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. 368-268 SETS 368-174 FEATURES ● TiN-coated measuring contact points (over 12mm range models) provide excellent durability and impact resistance and allow the instrument to measure to the bottom of a blind hole (up to 100 mm/4” models). ● Highly durable because of carbide- tipped contact points (anvils up to 12 mm/.5” models). ● Can measure deep holes using an Extension rod (optional) which is available on models over 6 mm (.275”) measuring range. ● With Ratchet Stop for constant force. ● Setting Rings for zero point adjustment are optional. ● Supplied in fitted plastic case up to 100 mm/4”. Over 100 mm/4” supplied in wooden case. Technical Data Graduation: 0.001mm, 0.005mm*, .0001” or .0002”* (*over 12 mm or .5” models) OPTIONAL ACCESSORIES 952322: Extension rod 100 mm/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 TiN coated contact points (excluding models up to 12mm/.5”) Each set includes complete gages (micrometer head units and measuring heads for each size). ● The Holtest (type II) have three contact points made of alloyed steel ● Measurement can be taken closer to the bottom of the blind bore (up to 100mm/4” models). ● Can measure deep holes using an Extension Rod (optional). ● With Ratchet Stop for constant force ● Setting Rings for origin point settings are optional. ● Supplied in fitted plastic case up to 100mm/4”. Over 100mm/4” supplied in wooden case. Inch Metric 368-901-10 368-913 INDIVIDUAL HOLTEST HOLTEST-TYPE II SETS Each set includes complete gages (micrometer head units and measuring heads for each size). All sets are supplied with extension rod. Inch Metric *with TiN coated contact points *with TiN coated contact points Inch *with TiN coated contact points 368-001 Two-point contact type. Metric *with TiN coated contact points Inch HOLTEST (Type II) Three-Point Internal Micrometers Metric
