{"product_id":"value-collection-100312sr-gun-drill-bit-29-64-inch-carbide","title":"Value Collection 100312SR Gun Drill Bit 29\/64 Inch Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 100312SR is a single-flute gun drill bit designed for deep-hole drilling in demanding metalworking applications. Built with a carbide-tipped construction and a bright uncoated finish, it delivers consistent performance in materials such as Inconel, stainless steel, and steel. The 29\/64 inch cutting diameter holds a tight tolerance of plus 0.0005 to minus 0.0005 inches. The 115-degree drill point angle and N-8 Nosegrind point type help maintain accurate entry and exit geometry. Through-coolant capability via a round coolant hole supports chip evacuation and thermal management during extended cuts. Licensed HVAC and machining professionals handling deep-bore work will recognize the R-1 Low Land contour style and web-thinned geometry as standard features for gun drilling setups.\u003c\/p\u003e\u003cp\u003eThis bit is suited for deep-hole drilling operations in metalworking environments where hole depth, straightness, and finish are critical. It is used in production machining, toolroom work, and specialty fabrication involving hard alloys including Inconel and stainless steel. The 18-inch flute length and 22-inch overall length make it appropriate for bore depths up to 19 inches. The 3\/4 inch shank diameter seats in standard gun drill holders, and the 4-inch shank length with a 2-3\/4 inch drive length aligns with common deep-hole drilling machine setups.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e29\/64 inch cutting diameter with plus or minus 0.0005 inch tolerance for precise bore sizing\u003c\/li\u003e\n\u003cli\u003eSingle-flute gun drill configuration with web-thinned geometry for efficient chip removal in deep holes\u003c\/li\u003e\n\u003cli\u003eThrough-coolant support via round coolant hole for thermal control and extended tool life\u003c\/li\u003e\n\u003cli\u003e115-degree drill point angle with N-8 Nosegrind for clean entry in hard alloys\u003c\/li\u003e\n\u003cli\u003eCarbide-tipped construction rated for Inconel, stainless steel, and steel\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish suitable for applications where coating interaction with workpiece material is a concern\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in deep-hole gun drilling machines and setups that accept a 3\/4 inch shank diameter. Rated for material applications including Inconel, stainless steel, and steel.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eGun drill bits of this type are installed and operated by qualified machinists using dedicated gun drilling machines or deep-hole drilling equipment. Ensure the spindle and workholding are fully powered down and locked out before mounting or removing the bit. Confirm coolant line connections are secure before initiating through-coolant flow. Do not exceed the recommended depth of cut for the material being bored.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Diameter\u003c\/strong\u003e: 29\/64 inches (0.4531 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Point Angle\u003c\/strong\u003e: 115 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: N-8 Nosegrind\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Length\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 22 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDepth of Cut\u003c\/strong\u003e: 19 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Length\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive Length\u003c\/strong\u003e: 2-3\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContour Style\u003c\/strong\u003e: R-1 Low Land\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeb Thinning\u003c\/strong\u003e: Web-Thinned\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Diameter Tolerance\u003c\/strong\u003e: plus 0.0005 to minus 0.0005 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThrough Coolant\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Hole Configuration\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish Coating\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Inconel, Stainless Steel, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrill Type\u003c\/strong\u003e: Single Flute Gun\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Carbide-Tipped\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.4 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 20121600\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 100312SR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":68385801732402,"sku":"100312SR","price":348.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bc182f9b2f199cb6e02c1bcba26e46e3_cb74389d-4804-4d65-899f-ba25131dceb1.jpg?v=1793902877","url":"https:\/\/voomisupply.com\/products\/value-collection-100312sr-gun-drill-bit-29-64-inch-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}