Original title: What is the drilling technology of PC endurance board? As a good building material and equipment, PC endurance board has high strength and durability. Even though it is very good, Borehole Drill Bits , it also causes losses to users due to a wrong construction method of cracks along nail holes. Therefore, drilling in PC endurance board is a very important technologre rate of the solid board. So, how to process the PC endurance board-drilling operation? The simple way is to use the solid piece piercing bit directly, which can pick a thicker bit. ? Larger or wobbly holes. The diameter of the hole diameter is about two thirds larger than the left and right of the nail being drilled. The rear number is preferably larger. Return to Sohu to see more Responsible Editor: (function() { function getBrandHtml() { var brands = [],dth button bits, html = ''; for(var i = 0; i < brands.length; i++) { var brand = brands[i]; if(brands.length i+1) { html+= ''+brand.name+''; } else { html+= ''+brand.name+'、'; } } return html; }; if(document.getElementById('linkBtn')){ document.getElementById('linkBtn').onclick = function() { $('#brands').removeClass('brand');$ ( '# tipInfo').text ( 'Real name responded'); $ ('#linkBtn').remove();$ ('.real-response .content').css('line-height', '20px');$ ('.real-response .time').css('line-height', '20px'); }; document.getElementById('brands').innerHTML = getBrandHtml(); }; })();。 wt-dthtools.com