{"product_id":"micro-100-qth-105-boring-grooving-bar-holder","title":"Micro 100 QTH-105 Boring Grooving Bar Holder","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe MICRO 100 QTH-105 is a quick-change boring and grooving bar holder designed to securely mount small-diameter boring and grooving bars in compatible quick-change tooling systems. It features a 0.1875 inch (3\/16 inch) inside diameter bore to accept the tool shank and a 0.6250 inch (5\/8 inch) outside diameter body. The head diameter measures 0.7500 inch. Overall length is 2.8 inches. The QTH-105 includes coolant-through capability, allowing cutting fluid to be directed to the tool tip for improved chip evacuation and tool life on deep-bore and grooving operations.\u003c\/p\u003e\u003cp\u003eThis bar holder is intended for use in CNC turning centers, lathes, and manual turning applications where quick-change tooling setups are required. It is well suited for precision internal grooving and boring work on small-diameter bores in production and job-shop environments. Machinists and tooling setters working with the QTH series quick-change system will find it fits into that standardized platform directly.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e0.1875 inch inside diameter accepts standard 3\/16 inch boring and grooving bar shanks\u003c\/li\u003e\n\u003cli\u003e0.6250 inch outside diameter body for rigid, low-profile clamping\u003c\/li\u003e\n\u003cli\u003e0.7500 inch head diameter for secure seating in quick-change holders\u003c\/li\u003e\n\u003cli\u003eCoolant-through design directs fluid to the cutting zone for improved performance\u003c\/li\u003e\n\u003cli\u003e2.8 inch overall length suits compact tooling setups on small lathes and turning centers\u003c\/li\u003e\n\u003cli\u003ePart of the QTH series quick-change tooling system for consistent, repeatable setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use within the MICRO 100 QTH series quick-change tooling system. Accepts boring and grooving bars with a 3\/16 inch (0.1875 inch) shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician with the machine powered down and in a locked-out, tagged-out state before any tooling changes are made. Ensure the bar shank is clean and free of burrs before inserting into the holder bore. Verify coolant-through passages are clear and aligned with the machine spindle coolant supply before operation. Follow the machine tool manufacturer torque and clamping guidelines for the quick-change system in use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 0.1875 inches (3\/16 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 0.6250 inches (5\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead Diameter\u003c\/strong\u003e: 0.7500 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: QTH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.256 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112809\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MICRO 100\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: QTH-105\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MICRO 100","offers":[{"title":"Default Title","offer_id":51967015092530,"sku":"QTH-105","price":212.12,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/72a644b5a58149d39b3bba3a0103b1b7_0a308998-8c5b-47cc-b839-d654ffc65d0a.jpg?v=1789950728","url":"https:\/\/voomisupply.com\/products\/micro-100-qth-105-boring-grooving-bar-holder","provider":"Voomi Supply","version":"1.0","type":"link"}