{"product_id":"mte-hss-din-338-matkap-ucu-silindirik-sapli-kisa-taslanmis-tip-20-mm","title":"Mte Hss DIN 338 Drill Bit Cylindrical Shank Short Ground Type 20 mm","description":"\u003cp\u003e\u003cb\u003eMte HSS DIN 338 Drill Bit Cylindrical Shank Short Ground Type 20 mm\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003e\u003cb\u003eShort Series, Ground Type, High Precision, and Solution for M22 Pre-threading Applications\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003eThe \u003cb\u003eMte HSS DIN 338 Drill Bit (20.0 mm) Short Series, Ground Type\u003c\/b\u003e is a large-diameter, high-quality cutting tool designed for precision drilling operations. This drill bit is ideal for applications requiring \u003cb\u003ehigh tolerance and excellent surface finish\u003c\/b\u003e, especially for large diameters. It has a sharper geometry and a more accurate diameter compared to roll-forged types. Its \u003cb\u003e20.0 mm\u003c\/b\u003e diameter is critically important in heavy manufacturing and machine assembly, as it serves as the \u003cb\u003epre-drill diameter for M22 metric standard threads (2.5 mm pitch), reducing the load on the tap\u003c\/b\u003e, or as a suitable clearance hole for M20 bolts.\u003c\/p\u003e \u003cp\u003eThe core strength of the product comes from its \u003cb\u003eHSS (High-Speed Steel)\u003c\/b\u003e material and specifically its \u003cb\u003eGround\u003c\/b\u003e manufacturing method. Ground bits offer higher precision, sharper cutting edges, and better chip evacuation compared to roll-forged bits.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eTechnical Specifications and Material Details\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003eThe Mte Drill Bit has optimized features for M22 pre-threading and general-purpose drilling applications.\u003c\/p\u003e \u003ctable border=\"0\" cellspacing=\"3\" cellpadding=\"0\"\u003e \u003cthead\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003eFeature Name\u003c\/b\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003eDetailed Description\u003c\/b\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e\n\n\u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003eDiameter (Nominal)\u003c\/b\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003e20.0 mm\u003c\/b\u003e\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003eStandard\u003c\/b\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003eDIN 338:\u003c\/b\u003e German standard for twist drill bits with cylindrical shanks and standard short length.\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003eManufacturing Method\u003c\/b\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003eGround:\u003c\/b\u003e The bit is fully ground from solid steel. This ensures high precision, tighter tolerances, and excellent surface quality.\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003eMaterial Type\u003c\/b\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003eHSS (High-Speed Steel):\u003c\/b\u003e Offers high wear resistance and toughness. Does not contain cobalt (Standard HSS).\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003eSurface Treatment\u003c\/b\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003eBright finish (typically).\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003eShank Type\u003c\/b\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003eCylindrical Shank:\u003c\/b\u003e The shank diameter of large-diameter bits is typically reduced to 13 mm (\u003cb\u003eReduced Shank\u003c\/b\u003e).\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003ePoint Angle (Approx.)\u003c\/b\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003eTypically \u003cb\u003e118°\u003c\/b\u003e point angle. (Offers better centering and cutting performance due to its precise geometry).\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003ctr\u003e \u003ctd\u003e \u003cp\u003e\u003cb\u003eCutting Direction\u003c\/b\u003e\u003c\/p\u003e \u003c\/td\u003e \u003ctd\u003e \u003cp\u003eRight Hand Cutting\u003c\/p\u003e \u003c\/td\u003e \u003c\/tr\u003e \u003c\/tbody\u003e\n\n\n\u003c\/table\u003e \u003cp\u003e\u003cb\u003eApplications and Industries Used\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003eThis drill bit is used particularly in large-diameter applications requiring M22 pre-threading and general assembly holes:\u003c\/p\u003e \u003cp\u003e\u003cb\u003eMachine Manufacturing and Assembly:\u003c\/b\u003e \u003cb\u003ePre-drilling for M22 metric standard threads\u003c\/b\u003e (for standard 2.5 mm thread pitch). While 19.5 mm is ideal, 20.0 mm \u003cb\u003ereduces the load\u003c\/b\u003e on the tap, minimizing the risk of tap breakage.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eGeneral Metal Fabrication:\u003c\/b\u003e Drilling assembly holes in medium and thick sections of steel, stainless steel (low alloy), cast iron, and aluminum profiles.\u003c\/p\u003e \u003cp\u003e\u003cb\u003ePlumbing and Construction:\u003c\/b\u003e Drilling in steel structures, pipelines, and flanges.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eMold and Tool Manufacturing:\u003c\/b\u003e Preparation for precise and large-diameter tapping operations, especially where torque control is difficult.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eM20 Bolt Clearance Hole:\u003c\/b\u003e Provides a suitable and reliable clearance hole for M20 bolts.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eUser Information and Benefits\u003c\/b\u003e\u003c\/p\u003e \u003cp\u003eThis product appeals to users seeking high precision and reliable performance for M22 tapping operations:\u003c\/p\u003e \u003cp\u003e\u003cb\u003eSafety in M22 Threading Applications:\u003c\/b\u003e While 19.5 mm is the ideal pre-drill for M22 (2.5 mm pitch) threads, using a 20.0 mm diameter slightly reduces thread engagement. This \u003cb\u003esignificantly reduces the risk of tap breakage, especially in hard materials or when hand tapping\u003c\/b\u003e (with a slight trade-off in thread strength).\u003c\/p\u003e \u003cp\u003e\u003cb\u003eM20 Bolt Clearance Hole:\u003c\/b\u003e One of its most common uses is to drill a hole through which M20 bolts can easily pass. Ground manufacturing ensures the hole is precise and smooth.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eHigh Precision and Surface Quality:\u003c\/b\u003e Thanks to the ground manufacturing method, the hole diameter and position are extremely precise. It provides a smoother surface finish in large-diameter holes.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eSharper Cutting Edges:\u003c\/b\u003e Sharper cutting edges compared to roll-forged types require less cutting force and produce cleaner holes.\u003c\/p\u003e \u003cp\u003e\u003cb\u003eDIN 338 Short Series:\u003c\/b\u003e The short design minimizes vibration and deflection, allowing for more stable drilling.\u003c\/p\u003e","brand":"Mte","offers":[{"title":"Default Title","offer_id":46455423533252,"sku":"B00007002000","price":2897.78,"currency_code":"TRY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0752\/9355\/6932\/files\/15084c1.png?v=1785265760","url":"https:\/\/www.karadayihirdavat.com\/en\/products\/mte-hss-din-338-matkap-ucu-silindirik-sapli-kisa-taslanmis-tip-20-mm","provider":"Karadayı Hırdavat","version":"1.0","type":"link"}