{"product_id":"trapani-colonna-guede-gtb-20-812","title":"Guede GTB 20\/812 Pillar Drill","description":"\u003cp\u003eGuede GTB 20\/812 is a professional pillar drill with an 800 W motor, weighing approx. 27 kg. Krollit, official Guede distributor since 2007.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower supply: 230 V\u003c\/li\u003e\n\u003cli\u003eFrequency: 50 Hz\u003c\/li\u003e\n\u003cli\u003eMotor power: 800 W\u003c\/li\u003e\n\u003cli\u003eOperating mode: S2 – 15 min\u003c\/li\u003e\n\u003cli\u003eNumber of speeds: 12 (210–2500 rpm)\u003c\/li\u003e\n\u003cli\u003eSpindle stroke: 80 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho uses the GTB 20\/812 and for what\u003c\/h3\u003e\n\u003cp\u003eMechanical workshops and carpentry shops use the GTB 20\/812 for precision drilling on steel and cast iron, tapping with a tap chuck, and repetitive work on pieces of various sizes.\u003c\/p\u003e\n\u003ch3\u003eIts place in the Guede range\u003c\/h3\u003e\n\u003cp\u003eThe Guede GTB 20\/812 is part of the Guede pillar drill range, distributed in Italy by Krollit since 2007. The Guede range includes models of various categories and performances: to choose the machine suitable for your use case, you can consult the Guede catalog on Krollit or contact customer support for selection assistance.\u003c\/p\u003e\n\u003ch3\u003eKrollit Logistics and Support\u003c\/h3\u003e\n\u003cp\u003eMachine shipping in 5-9 working days (7 days to the South). For spare parts and accessories, shipping 3-5 working days from Krollit warehouse. Customer support in Italian available for technical documentation, product sheets, and spare parts order management. Krollit has been the official distributor since 2007.\u003c\/p\u003e\n\u003ch3\u003eWho is the GTB 20\/812 for\u003c\/h3\u003e\n\u003cp\u003eThe GTB 20\/812 is recommended for the following professional profiles:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical workshops and carpentry\u003c\/strong\u003e: precision drilling on steel and cast iron, tapping with a tap chuck.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance workers and repair shops\u003c\/strong\u003e: repetitive drilling work on pieces of various sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOccasional hobby use\u003c\/strong\u003e: professional machine; for domestic use, consider compact bench models.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpindle, tools and speed\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of speeds\u003c\/td\u003e\n\u003ctd\u003e12 (210–2500 rpm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpindle taper\u003c\/td\u003e\n\u003ctd\u003eMK2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpindle cone\u003c\/td\u003e\n\u003ctd\u003eB16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpindle–table distance\u003c\/td\u003e\n\u003ctd\u003emax 270 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpindle–base distance\u003c\/td\u003e\n\u003ctd\u003emax 520 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTable, dimensions and geometry\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eWork surface\u003c\/td\u003e\n\u003ctd\u003e260 × 260 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTable inclination\u003c\/td\u003e\n\u003ctd\u003e±45° \/ 360° rotating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColumn diameter\u003c\/td\u003e\n\u003ctd\u003e70 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd\u003e650 × 340 × 1010 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable length\u003c\/td\u003e\n\u003ctd\u003e200 cm (H05RN-F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eapprox. 27 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMotor and power supply\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply voltage\u003c\/td\u003e\n\u003ctd\u003e230 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e50 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor power\u003c\/td\u003e\n\u003ctd\u003e800 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eOther specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating mode\u003c\/td\u003e\n\u003ctd\u003eS2 – 15 min\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutreach\u003c\/td\u003e\n\u003ctd\u003e170 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003ctd\u003e240 × 410 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSound level LWA\u003c\/td\u003e\n\u003ctd\u003e71 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection class\u003c\/td\u003e\n\u003ctd\u003eI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpindle stroke\u003c\/td\u003e\n\u003ctd\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChuck capacity\u003c\/td\u003e\n\u003ctd\u003e1–16 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the drilling capacity of the GTB 20\/812?\u003c\/summary\u003e\n\u003cp\u003eSee the \"Drilling capacity\" data in the machine's technical table.\u003c\/p\u003e\n\u003cp\u003eThe capacity refers to standard unhardened steel. On harder materials or alloy steels, the actual capacity may be lower: reduce speed and feed to avoid stressing the spindle and tools.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is the spindle speed adjusted?\u003c\/summary\u003e\n\u003cp\u003eVia mechanical belt or gear change in step models, via inverter or variator in Vario models.\u003c\/p\u003e\n\u003cp\u003eVario models allow continuous adjustment, while step models require moving the belt to different pulleys. Correct speed selection based on drill bit diameter and material extends tool life.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat spindle taper and tool types does it support?\u003c\/summary\u003e\n\u003cp\u003eSee \"Spindle taper\" in the technical table: typically MT 2, MT 3 or MT 4 depending on the model.\u003c\/p\u003e\n\u003cp\u003eMT (Morse Taper) tapers are international standards and accessories (arbors, keyless chucks, reductions) are commonly available on the market. Krollit supplies original Bernardo accessories.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDoes the drill allow tapping with a tap chuck?\u003c\/summary\u003e\n\u003cp\u003eOnly models with standard right\/left rotation allow tapping with automatic tap release.\u003c\/p\u003e\n\u003cp\u003eCheck the \"Right\/left rotation\" or \"Tapping\" specification: drills without mechanical reversal are not suitable for repetitive tapping.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the machine's weight and what installation does it require?\u003c\/summary\u003e\n\u003cp\u003eWeight varies from approximately 25 kg (compact benchtop) to over 250 kg (industrial Profi models).\u003c\/p\u003e\n\u003cp\u003eBenchtop models are installed on a sturdy workbench, while pillar or radial models require floor mounting with expansion anchors for stability during drilling.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Guede","offers":[{"title":"Default Title","offer_id":51861577695560,"sku":"55206","price":265.58,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/Trapano_a_colonna_Guede_GTB_20_812_Potente_preciso_e_sicuro.webp?v=1761582118","url":"https:\/\/www.krollit.com\/products\/pillar-drills-guede-gtb-20-812","provider":"Krollit","version":"1.0","type":"link"}