{"product_id":"flott-mandrino-filettatura-gbf30-mk4","title":"Flott GBF 30 \/ MK IV Lathe Chuck","description":"\u003cp\u003eFlott GBF 30 \/ MK IV is a lathe chuck for professional use, with Morse Taper MK IV. Krollit, official Flott distributor since 2007.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThreading capacity: M10 – M30\u003c\/li\u003e\n\u003cli\u003eTaper connection: Morse MK IV\u003c\/li\u003e\n\u003cli\u003eMachine compatibility: Flott drills and stations with MK IV connection\u003c\/li\u003e\n\u003cli\u003eStructure: High-strength hardened steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWho uses the GBF 30 \/ MK IV and for what\u003c\/h3\u003e\n\u003cp\u003eMechanical workshops and artisan turners use the GBF 30 \/ MK IV as a clamping accessory on metal lathes, ensuring secure clamping and centering of the workpiece during turning, drilling, and grooving operations.\u003c\/p\u003e\n\u003ch3\u003eIts place in the Flott range\u003c\/h3\u003e\n\u003cp\u003eFlott GBF 30 \/ MK IV is part of the Flott lathe chuck range, distributed in Italy by Krollit since 2007. The Flott range includes models of various categories and performances: to choose the right machine for your use case, you can consult the Flott catalog on Krollit or contact customer support for selection assistance.\u003c\/p\u003e\n\u003ch3\u003eKrollit logistics and support\u003c\/h3\u003e\n\u003cp\u003eShipping 3-5 business days from Krollit warehouse for spare parts and accessories. Italian customer support available for technical documentation and compatibility verification with the reference machine. Krollit has been an official distributor since 2007.\u003c\/p\u003e\n\u003ch3\u003eWho is the GBF 30 \/ MK IV for\u003c\/h3\u003e\n\u003cp\u003eThe GBF 30 \/ MK IV is recommended for the following professional profiles:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical workshops and artisan turners\u003c\/strong\u003e: secure clamping of round or hexagonal workpieces on metal lathes for turning, drilling, and grooving operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsers with a Bernardo lathe with a compatible flange\u003c\/strong\u003e: original replacement or upgrade for Bernardo range lathes (profi, hobby, etc.) with A2 connection compliant with DIN 55029.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIrregular or non-round workpieces\u003c\/strong\u003e: for non-symmetrically centered workpieces, consider independent 4-jaw chucks or universal platforms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhen to use this chuck?\u003c\/summary\u003e\n\u003cp\u003eIt is a self-centering chuck for clamping workpieces on the lathe during turning operations.\u003c\/p\u003e\n\u003cp\u003eSelf-centering chucks allow quick clamping of the workpiece with a single key. The choice depends on the shape of the workpiece (cylindrical, square) and the body material (steel or cast iron).\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the chuck body made of?\u003c\/summary\u003e\n\u003cp\u003eThe material is indicated in the title: steel (PO series) for maximum precision, cast iron (DK\/PS series) for standard use.\u003c\/p\u003e\n\u003cp\u003eThe choice depends on the intensity of use and the required tolerance: steel for production and precision, cast iron for general use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhich diameter to choose?\u003c\/summary\u003e\n\u003cp\u003eThe choice of diameter depends on the lathe spindle nose (it must match the fitting) and the dimensions of the workpieces to be machined.\u003c\/p\u003e\n\u003cp\u003eTypical diameters: 80-160 mm for hobby lathes, 200-315 mm for professional lathes, 400-630 mm for industrial lathes.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I check compatibility with my lathe?\u003c\/summary\u003e\n\u003cp\u003eCheck the type of fitting of the lathe spindle nose (Camlock D3-D15, or threaded connection M-) and the corresponding diameter.\u003c\/p\u003e\n\u003cp\u003eOn modern lathes, the Camlock fitting is the most common. On older lathes, there may be a threaded (M-) or flanged connection. The lathe's technical documentation indicates the exact type.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow is chuck precision maintained?\u003c\/summary\u003e\n\u003cp\u003eRegular cleaning of the spiral mechanism, periodic lubrication with specific chuck grease, and concentricity check every 6 months with a dial indicator.\u003c\/p\u003e\n\u003cp\u003eA jaw that moves with difficulty indicates chips or rust in the mechanism: disassemble, clean, and grease. Concentricity is checked by mounting a ground bar and measuring with a dial indicator: acceptable tolerance 0.03-0.1 mm depending on the model.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"Flott","offers":[{"title":"Default Title","offer_id":52086218293576,"sku":"285089","price":1596.06,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/2139\/0920\/files\/Flott_GBF_30_MK_IV_Mandrino_di_Filettatura_per_Maschi_M10_M30.jpg?v=1764345013","url":"https:\/\/www.krollit.com\/products\/flott-chuck-filettatura-gbf30-mk4","provider":"Krollit","version":"1.0","type":"link"}