{"id":18780,"date":"2026-07-06T17:59:56","date_gmt":"2026-07-06T15:59:56","guid":{"rendered":"https:\/\/roder.it\/products\/bolt-tension-monitors\/bt2-dl-series-bolt-tension-monitors\/"},"modified":"2026-10-30T16:21:53","modified_gmt":"2026-10-30T15:21:53","slug":"bt2-dl-series-bolt-tension-monitors","status":"publish","type":"page","link":"https:\/\/roder.it\/en\/products\/bolt-tension-monitors\/bt2-dl-series-bolt-tension-monitors\/","title":{"rendered":"BT2-DL series bolt tension monitors"},"content":{"rendered":"\n<div class=\"wp-block-group is-layout-constrained wp-container-core-group-is-layout-61d584a3 wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-ba02fbf7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:40%\">\n<figure class=\"wp-block-image size-large has-custom-border\"><img decoding=\"async\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt2-bt2_dl_misuratore_tensione_bulloni_versione_top_di_gamma-web_image-680x680-1.webp\" alt=\"Dakota NDT BT2-DL top-of-the-range bolt tension monitor\" style=\"border-width:1px;border-top-left-radius:20px;border-top-right-radius:20px;border-bottom-left-radius:20px;border-bottom-right-radius:20px\"\/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:60%\">\n<p class=\"has-text-color has-background wp-block-paragraph\" style=\"border-radius:0px 6px 6px 0px;border-left-color:var(--wp--preset--color--ti-accent);border-left-style:solid;border-left-width:5px;color:#1A5276;background-color:#ebf1f4;padding-top:14px;padding-right:16px;padding-bottom:14px;padding-left:16px;font-size:clamp(14px, 0.875rem + ((1vw - 3.2px) * 0.769), 20px);font-style:italic\">The <strong>BT2-DL<\/strong> from Dakota NDT is the top-of-the-range ultrasonic <strong>bolt tension monitor<\/strong>: more powerful and faster, it handles a wider range of lengths thanks to three measuring modes (Pulse-Echo, Echo-Echo, Echo-Echo-Verify) and expandable memory.<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list is-style-checkbox has-ti-accent-color has-text-color has-link-color wp-elements-1\">\n<li><strong>Top-of-the-range bolt tension monitor :<\/strong> advanced functions and fast operation<\/li>\n\n\n\n<li><strong>3 measuring modes :<\/strong> Pulse-Echo, Echo-Echo, Echo-Echo-Verify<\/li>\n\n\n\n<li><strong>Bolts up to 30.48 m :<\/strong> in Pulse-Echo mode<\/li>\n\n\n\n<li><strong>4 GB memory + 64 GB external :<\/strong> import\/export with BT1-DL<\/li>\n\n\n\n<li><strong>Outputs :<\/strong> analog, serial and alarm<\/li>\n\n\n\n<li><strong>Li-Ion battery :<\/strong> ~18 h + AA backup<\/li>\n\n\n\n<li><strong>Industries :<\/strong> aerospace, energy, infrastructure, railways<\/li>\n\n\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n\n<div style=\"height:24px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">The BT2-DL measures <strong>bolt tension<\/strong> (elongation, load, stress, strain, time in ns) with three modes: <strong>Pulse-Echo<\/strong> for uncoated fasteners up to 30.48 m and <strong>Echo-Echo<\/strong> \/ <strong>Echo-Echo-Verify<\/strong> (triple echo) for small fasteners where coating thickness could affect the measurement (up to about 102 mm).<\/p>\n\n<p class=\"wp-block-paragraph\">Auto-correlation assists transducer positioning and custom auto-calibration simplifies setup. It offers 4 GB of internal memory expandable up to 64 GB, analog, serial and alarm outputs, USB connectivity and the ability to import and export files with the BT1-DL. <\/p>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<div class=\"wp-block-cover is-light popmake-11245\" style=\"border-width:1px;border-top-left-radius:10px;border-top-right-radius:10px;border-bottom-left-radius:10px;border-bottom-right-radius:10px;min-height:250px;aspect-ratio:unset;\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"213\" class=\"wp-block-cover__image-background wp-image-14896 size-large\" alt=\"banner aiuto nella scelta dello strumento oppure della tecnologia\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-1024x213.png\" data-object-fit=\"cover\" srcset=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-1024x213.png 1024w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-300x63.png 300w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products-768x160.png 768w, https:\/\/roder.it\/wp-content\/uploads\/2026\/06\/banner_technical_support_choose_products.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\" style=\"background-color:#d3d6dc\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-container-core-cover-is-layout-a304f9a9 wp-block-cover-is-layout-constrained\">\n<p class=\"has-text-align-right has-ti-fg-color has-text-color has-link-color wp-elements-2 wp-block-paragraph\" style=\"font-size:clamp(21.536px, 1.346rem + ((1vw - 3.2px) * 1.726), 35px);\"><strong>Would you like help choosing the right product ?<\/strong><\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-right is-layout-flex wp-container-core-buttons-is-layout-b507c051 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/roder.it\/en\/contacts\/\">Click here !<\/a><\/div>\n<\/div>\n<\/div><\/div>\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<style>.roder-spec thead td{background:#e8edf1 !important;font-weight:700;border-bottom:2px solid #c3cfd7 !important;}.roder-spec tbody tr:nth-child(2n) td{background-color:#f2f6f8 !important;}.roder-spec tbody tr:nth-child(2n+1) td{background-color:#ffffff !important;}.roder-codici table thead td{background:#e8edf1;font-weight:700;}.roder-codici .is-style-stripes tbody tr:nth-child(2n){background-color:#f2f6f8;}.roder-codici .is-style-stripes tbody tr:nth-child(2n+1){background-color:#ffffff;}.roder-codici .codici-header{background:#e8edf1;border-bottom:2px solid #c3cfd7;margin-bottom:0;}.roder-codici .codici-header,.roder-codici .codici-row{padding:6px 12px !important;}.roder-codici .codici-header p{margin:8px 0;}.roder-codici .codici-row{margin-top:0;margin-bottom:0;}.roder-codici .codici-row p{margin:6px 0;}.roder-codici .codici-row .wp-block-column:first-child{text-align:center;}.roder-codici .codici-row figure.wp-block-image{margin-left:auto !important;margin-right:auto !important;}<\/style>\n\n<h2 class=\"wp-block-heading\">Technical specifications<\/h2>\n\n<figure class=\"wp-block-table is-style-stripes roder-spec\"><table class=\"has-fixed-layout\"><thead><tr><td>Feature<\/td><td>Value<\/td><\/tr><\/thead><tbody><tr><td>Instrument type<\/td><td>Ultrasonic bolt tension monitor (top of the range)<\/td><\/tr><tr><td>Measured quantities<\/td><td>Elongation, load, stress, percentage of strain, time (nanoseconds)<\/td><\/tr><tr><td>Measurement modes<\/td><td>Pulse-Echo, Echo-Echo, Echo-Echo-Verify (triple echo)<\/td><\/tr><tr><td>Pulse-Echo range<\/td><td>uncoated bolts up to 30.48 m (100 ft)<\/td><\/tr><tr><td>Echo-Echo range<\/td><td>up to about 102 mm (4 in) for small fasteners<\/td><\/tr><tr><td>Functions<\/td><td>Auto Correlation, Auto Set, custom auto-calibration, 3 gates<\/td><\/tr><tr><td>Setups<\/td><td>64 customisable setups<\/td><\/tr><tr><td>Memory<\/td><td>4 GB internal, expandable up to 64 GB external<\/td><\/tr><tr><td>Outputs \/ connectivity<\/td><td>USB 1.1; analog, serial and alarm outputs; import\/export with BT1-DL<\/td><\/tr><tr><td>Software<\/td><td>PC and OSX for reporting<\/td><\/tr><tr><td>Power supply<\/td><td>10.8 V 2 Ah Li-Ion pack (~18 h); 6 \u00d7 AA backup (alkaline ~12 h)<\/td><\/tr><tr><td>Operating temperature<\/td><td>\u221210 \u2026 +60 \u00b0C<\/td><\/tr><tr><td>Dimensions<\/td><td>216 \u00d7 165 \u00d7 70 mm<\/td><\/tr><tr><td>Weight<\/td><td>approx. 2.04 kg (4.5 lb, with batteries)<\/td><\/tr><tr><td>Housing<\/td><td>Extruded aluminum with nickel-plated aluminum end caps (sealed gaskets)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<div class=\"wp-block-group roder-codici is-layout-flow wp-block-group-is-layout-flow\">\n<h2 class=\"wp-block-heading\">Part numbers, accessories and spare parts<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Part numbers for ordering the BT2-DL and its accessories. The part numbers will be added as soon as they are available. <\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Instrument \u2013 complete kit<\/h3>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-top is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:280px\">\n<figure class=\"wp-block-image size-large is-resized has-custom-border\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-bt2-bt2_dl_misuratore_tensione_bulloni_versione_top_di_gamma-web_image-680x680-1.webp\" alt=\"product\" style=\"border-color:#cccccc;border-width:1px;border-radius:12px;width:260px\"\/><\/figure>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-top is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><td>Item code<\/td><td>Product code<\/td><td>Description<\/td><\/tr><\/thead><tbody><tr><td><strong>&#8212;<\/strong><\/td><td>BT2-DL<\/td><td>BT2-DL top-of-the-range ultrasonic bolt tension monitor<\/td><\/tr><\/tbody><\/table><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Accessories<\/h3>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center codici-header is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:110px\">\n<p class=\"wp-block-paragraph\"><strong>Photo<\/strong><\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:22%\">\n<p class=\"wp-block-paragraph\"><strong>Item code<\/strong><\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:26%\">\n<p class=\"wp-block-paragraph\"><strong>Product code<\/strong><\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Description<\/strong><\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center codici-row is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:110px\">\n<figure class=\"wp-block-image aligncenter size-medium is-resized has-custom-border\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-trasduttori_bulloni-generico_t_895_0607-web_image-649x649-1.webp\" alt=\"Bolt transducer\" style=\"border-color:#cccccc;border-width:1px;border-radius:8px;object-fit:contain;width:96px;height:96px\"\/><\/figure>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:22%\">\n<p class=\"wp-block-paragraph\"><strong>&#8212;<\/strong><\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:26%\">\n<p class=\"wp-block-paragraph\">Bolt transducer<\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Single-element transducer (1\u201310 MHz, diameters 1\/8\u201d\u20131\u201d); glue-on version for short bolts<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center codici-row has-background is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\" style=\"background-color:#f2f6f8\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:110px\">\n<figure class=\"wp-block-image aligncenter size-medium is-resized has-custom-border\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-strumenti_ultrasuoni_generale-immagine_con_sonda_ad_ultrasuoni_e_liq_accoppiante-web_image-1200x1200-1.webp\" alt=\"Couplant\" style=\"border-color:#cccccc;border-width:1px;border-radius:8px;object-fit:contain;width:96px;height:96px\"\/><\/figure>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:22%\">\n<p class=\"wp-block-paragraph\"><strong>&#8212;<\/strong><\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:26%\">\n<p class=\"wp-block-paragraph\">Couplant<\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Coupling gel for ultrasound transmission<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns are-vertically-aligned-center codici-row is-layout-flex wp-container-core-columns-is-layout-7387b849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:110px\">\n<figure class=\"wp-block-image aligncenter size-medium is-resized has-custom-border\"><img decoding=\"async\" class=\"has-border-color\" src=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-strumenti_ultrasuoni_generale-accessorio_valigetta-web_image-680x680-1.webp\" alt=\"Carrying case\" style=\"border-color:#cccccc;border-width:1px;border-radius:8px;object-fit:contain;width:96px;height:96px\"\/><\/figure>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:22%\">\n<p class=\"wp-block-paragraph\"><strong>&#8212;<\/strong><\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:26%\">\n<p class=\"wp-block-paragraph\">Carrying case<\/p>\n<\/div>\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Carrying case for the instrument and its accessories<\/p>\n<\/div>\n<\/div>\n<\/div>\n\n<h2 class=\"wp-block-heading\">Technical documentation<\/h2>\n\n<figure class=\"wp-block-table is-style-stripes roder-spec\"><table class=\"has-fixed-layout\"><thead><tr><td>Document<\/td><td>Type<\/td><\/tr><\/thead><tbody><tr><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-documentazione-monitor_tensione_bulloni_bt2_dl-datasheet.pdf\" target=\"_blank\" rel=\"noopener\">BT2-DL datasheet<\/a><\/td><td>Datasheet (PDF)<\/td><\/tr><tr><td><a href=\"https:\/\/roder.it\/wp-content\/uploads\/2026\/07\/dakota_ndt-documentazione-monitor_tensione_bulloni_bt2_dl-manual.pdf\" target=\"_blank\" rel=\"noopener\">BT2-DL manual<\/a><\/td><td>Manual (PDF)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\">Frequently asked questions<\/h2>\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\"><strong class=\"schema-faq-question\">What sets the BT2-DL apart from the BT1-DL?<\/strong><p class=\"schema-faq-answer\">The BT2-DL is the top-of-the-range model: it adds the Echo-Echo and Echo-Echo-Verify modes, handles longer bolts (up to 30.48 m in Pulse-Echo), has memory expandable up to 64 GB and analog, serial and alarm outputs.<\/p><\/div><div class=\"schema-faq-section\"><strong class=\"schema-faq-question\">Which measuring modes does it offer?<\/strong><p class=\"schema-faq-answer\">Pulse-Echo for uncoated fasteners up to 30.48 m and Echo-Echo \/ Echo-Echo-Verify for small coated fasteners (up to about 102 mm).<\/p><\/div><div class=\"schema-faq-section\"><strong class=\"schema-faq-question\">Is it compatible with the BT1-DL?<\/strong><p class=\"schema-faq-answer\">Yes: it allows files to be imported and exported between the BT2-DL and the BT1-DL.<\/p><\/div><div class=\"schema-faq-section\"><strong class=\"schema-faq-question\">How is it powered?<\/strong><p class=\"schema-faq-answer\">With a Li-Ion battery pack (10.8 V, 2 Ah, ~18 h of runtime) and an emergency 6 \u00d7 AA backup.<\/p><\/div><\/div>\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\">\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading has-ti-accent-color has-text-color has-link-color wp-elements-3\">Contacts &amp; Information<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Contact for general information : <a href=\"mailto:info@roder.it\">info@roder.it<\/a><br\/><br\/>Machine Vision Division of RODER : <a href=\"https:\/\/www.visiotronix.com\">www.visiotronix.com<\/a><br\/>RODER Instruments Division : <a href=\"https:\/\/www.visiotronix.com\">www.innovacheck.com<\/a><br\/>More about RODER : <a href=\"https:\/\/roder.it\/en\/contacts\/\">about us<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The information contained in this website is provided for information purposes only. Although it has been prepared with the greatest care, it does not constitute a contractual offer or a binding commitment to supply. It may contain transcription, translation or typographical errors. For precise and up-to-date information, please contact our company directly.   <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Note:<\/strong> Some images on this website have been intentionally generated using artificial intelligence (AI). This is because, for many applications and projects, photographs of the actual installation or system cannot be disclosed owing to confidentiality agreements, contractual clauses and non-disclosure agreements (NDAs). <\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>The BT2-DL from Dakota NDT is the top-of-the-range ultrasonic bolt tension monitor: more powerful and faster, it handles a wider range of lengths thanks to three measuring modes (Pulse-Echo, Echo-Echo, Echo-Echo-Verify) and expandable memory. The BT2-DL measures bolt tension (elongation, load, stress, strain, time in ns) with three modes: Pulse-Echo for uncoated fasteners up to [&hellip;]<\/p>\n","protected":false},"author":157040980,"featured_media":0,"parent":18680,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_yoast_wpseo_focuskw":"BT2-DL bolt tension monitor","_yoast_wpseo_title":"Monitor tensione bulloni BT2-DL Dakota NDT | RODER","_yoast_wpseo_metadesc":"Dakota NDT BT2-DL: top-of-the-range ultrasonic bolt tension monitor, more powerful and faster, for an extended range of bolts and materials.","_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_wpcom_ai_launchpad_about_page":false,"_wpcom_ai_launchpad_gallery_page":false,"_wpcom_ai_launchpad_contact_page":false,"_wpcom_ai_launchpad_events_page":false,"_wpcom_ai_launchpad_video_page":false,"_wpcom_ai_launchpad_portfolio_piece":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"footnotes":""},"class_list":["post-18780","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Monitor tensione bulloni BT2-DL Dakota NDT | RODER<\/title>\n<meta name=\"description\" content=\"Dakota NDT BT2-DL: top-of-the-range ultrasonic bolt tension monitor, more powerful and faster, for an extended range of bolts and materials.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, 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