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Our speed charts are easy to use as they indicate speed and feed required for various metals depending on the drill bit size you are using. [CDATA[ */ n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n; These are prone to slipping in chucks, when you are buying one lookout for one with a hexagonal shank. ga( 'ec:setAction', 'add' ); /* ]]> */

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Select the required size cutter and screw onto the arbour.

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[CDATA[ */ Going slower usually doesn’t hurt, and will prolong tool life. Low Carbon Steel: RPM: 4300: 2150: 1450: 1100: 900: 750: 550: 450: 360: 275: HP.01.05.12.20.30.35.68: 1.05: 1.50: 2.10: Feed.001.003.005.007.008.009.012.014.016.018: Thrust: 30: 80: 145: 230: 340: 440: 700: 1050: 1300: 2000: Stainless Steel: RPM: 3200: 1550: 1025: 775: 620: 510: 400: 360: 310: 270: HP.01.05.12.21.40.48.85: 1.45: 2.05: 3.1: Feed.001.002.003.004.005.005.007.009.010.011: Thrust: 40: … Drilling hardened metal easily The use of cutting fluid will make the cutting process easier and will therefore allow for a faster cutting speed.nType of drill bit being used.

var jetpackLazyImagesLoadEvent; You should always use a cutting compound or cutting paste when drilling metal.

Steel: Stainless Steel: Aluminium: 16mm: 530 rpm: 275 rpm: 900 rpm: 20mm: 460 rpm: 230 rpm: 690 rpm: 25mm: 350 rpm: 175 rpm: 525 rpm: 30mm: 285 rpm: 145 rpm: 425 rpm: 35mm: 250 rpm: 125 rpm: 375 rpm: 40mm: 220 rpm: 110 rpm: 330 rpm: 50mm: 170 rpm: 85 rpm: 255 rpm: 75mm: 115 rpm: 55 rpm: 165 rpm: 100mm: 85 rpm: 40 rpm: 125 rpm: 175mm: 115 rpm: 55 rpm: 165 rpm For hole saws, cone drills and step drills use this chart as a guide. It is essential to keep the bit as sharp as possible or there is a chance it will wander or overheat. ưY����5]{�9�wQf(���u� ���=��㜳�@>����=���L����Y� ���O�ZBJ�#1�L�R�0��_�YF�w�f|��g�7` G�A�w٢g��t�ĎЧ�&�%`3q jQuery( 'body' ).get( 0 ).dispatchEvent( jetpackLazyImagesLoadEvent ); Drill speed becomes increasingly important when drilling harder metals. [CDATA[ */ /* ]]> */ ","wrong_checkbox":"Checkbox","ignore_waypoints":"no","is_divi_theme_used":"1","widget_search_selector":".widget_search","ab_tests":[],"is_ab_testing_active":"","page_id":"1123","unique_test_id":"","ab_bounce_rate":"5","is_cache_plugin_active":"no","is_shortcode_tracking":"","tinymce_uri":""}; var et_builder_utils_params = {"condition":{"diviTheme":true,"extraTheme":false},"scrollLocations":["app","top"],"builderScrollLocations":{"desktop":"app","tablet":"app","phone":"app"},"onloadScrollLocation":"app","builderType":"fe"}; var et_frontend_scripts = {"builderCssContainerPrefix":"#et-boc","builderCssLayoutPrefix":"#et-boc .et-l"}; Centre punch and drill a pilot hole if required. Where drilling cutting speed is not the primary focus it is advisable that you use a slower speed than recommended as this will help you prolong the life of your drill bit. Eye protection We have produced speed and feed charts for both metric and imperial drill bit sizes. /* ]]> */ LinkedIn The larger the diameter of the hole you are drilling the larger the surface area where metal is in contact with metal as a result heat build up will be faster.

Once the pilot hole is drilled, then change up to a larger bit. The use of cutting fluid will make the cutting process easier and will therefore allow for a faster cutting speed.

fbq('init', '352363501956782', {}, { The hole saw arbour will be fitted with its own pilot drill. A bit around 3 or 4mm is ideal for a pilot hole. This will also help reduce burring. Drilling metal You should always use a cutting compound or cutting paste when drilling metal. We have produced speed and feed charts for both metric and imperial drill bit sizes. /*

ga( 'send', 'event', 'UX', 'click', 'add to cart' ); Our speed charts are easy to use as they indicate speed and feed required for various metals depending on the drill bit size you are using.nDrill bit cutting speednDrill bit cutting speeds are very important in the drilling of metals. Drilling cutting speed and feed charts are often produced as guidelines for drilling in manufacturing where speed is important. Cobalt drill bit sets The larger the diameter of the hole you are drilling the larger the surface area where metal is in contact with metal as a result heat build up will be faster. Use center punch on all holes to prevent drill …

If you use a pedestal drill you will more accurately position your drill bit. Recommended cutting speeds are given in charts. 6 mm - 10 mm 3000 1500 2000 1200 2500 1000 [CDATA[ */

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/* ]]> */ "agent": "wordpress-5.5.3-2.2.0" Facebook Now we have covered the drilling tools here Drilling Metal, lets take a look at the technique.

Photos } ); Drill with a firm pressure. Certificate of hardness from SGS MIS Testing Ltd, Video of Vickers hardness test on 8mm TTP HARD drill bit. Drill bit cutting speed. You should use these feed and speed charts u00a0as a guide as there are many variables involved when drilling metal.nWhat drill bit cutting speed for drilling metal?nFactors which will influence drilling speed and feed, and therefore you must considered, when drilling metal include:nnThe metal being drilled.

The hardness of the metal being drilled. }); } catch ( e ) {

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Steel: Notes: Twist Drill Bits* 1/16" - 3/16" 1/4" - 3/8" 7/16" - 5/8" 11/16" - 1" 3000 3000 1500 750: 3000 1500 750 500: 2500 2000 1500 NR: 3000 1200 750 400: 3000 2500 1500 1000: 3000 1000 600 350: Lubricate drill with oil when cutting steel 1/8" or thicker. The harder theu00a0metal the slower the drill speed required.nUse of cutting fluid. Centre punch the drilling position, and begin drilling. We use cookies to ensure that we give you the best experience on our website. Ideally you should create a constant stream of cut metal for removal from the drilling hole.nYou should avoid exerting too much pressure or you will cause excessive heat build up which will hamper the cutting action. The harder the metal the slower the drill speed required. var woo_discount_rules = {"home_url":"https:\/\/ttp-hard-drills.com","admin_url":"https:\/\/ttp-hard-drills.com\/wp-admin\/","ajax_url":"https:\/\/ttp-hard-drills.com\/wp-admin\/admin-ajax.php","show_product_strikeout":"dont","product_price_container_class":""}; Privacy policy document,'script','https://connect.facebook.net/en_US/fbevents.js');

/* ]]> */ If you continue to use this site we will assume that you are happy with it.Ok. Certificate of hardness from SGS MIS Testing Ltd When drilling metal you should always wear safety goggles. As you approach the size you require be careful not to go too far, resulting in an oversized hole.

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