A) We would advise you firstly determine the metal you intend to drill which will in turn determine the type of drill bit you require. Cobalt drill bits are the best choice for the majority of metals people need to drill. After determining the drill bit type you should :-

Drilling into concrete also requires the right bit. Choose the appropriate tungsten carbide masonry drill bit for your desired hole size and your hammer drill or rotary hammer. Unlike wood drill bits, rotary hammer bits are fluted along the shank so they can travel up and down like a jackhammer while working through the concrete to make the hole you need.

If you are serious about protecting your drill bits it may be worth investing in a cutting paste or oil which contains quality high pressure additives and has a proven track record.

For the majority of individuals cobalt drill bits will drill through most metals they will need to drill including stainless steel, hardened steel and high tensile bolts.  Read testimonials from TTP HARD cobalt drill bit customers to see what they have drilled.

Hss drill bit vs cobaltreddit

There isn’t a trick to drilling into concrete. It’s important to use the right tools—rotary hammer or hammer drill—and the right bits that are made for concrete.

A) Cobalt drill bits can be resharpened. They can be resharpened using a drill bit sharpener or if you are skilled you can use a grinding disc and resharper by hand.

A) TTP HARD cobalt drill bits are M35 cobalt drill bits. This means that they contain approximately 5% cobalt. This will allow the drills to drill the majority of hard metals including stainless steel.

HSS Drill BitSet

Once you have drilled your hole to the necessary depth, blow all of the concrete dust out of the hole with a can of compressed air. Then vacuum up whatever has fallen to the ground. You should still be wearing your goggles throughout this process to protect against any concrete dust and shards that might fly in your face and scratch your eyes.

An M42 (8% cobalt) drill bit will drill harder metals however will also be more prone to breakage due to its inceased brittleness. M42 cobalt drill bits are best suited to use in a pedestal drill where direction of drilling is controlled better than a hand drill.

What areHSS drillbits used for

No. You can’t use a regular drill for concrete. Choose a hammer drill or a rotary hammer. They have impact energy in addition to rotational energy. The impact energy pulverizes the concrete at the tip of the bit while the rotational energy draws the dust out of the hole through the bit’s flutes.

Mark the desired position of the holes in pencil on the concrete surface, and double-check the locations before you proceed. If your drill’s features include a stop bar, set it to the exact depth you want by following the drill manufacturer’s specifications. No stop-bar feature? Instead, wrap a piece of tape around the drill bit to show you where to stop.

A) There are many types of drill bits available for drilling different metal types. These include HSS, Titanium, Carbide, Cobalt and Tungston.

Many hammer drills offer only two speeds, so turn your drill on at the slower speed for best control when making the guide hole. If your drill has only one speed, then work in short, controlled bursts of a few seconds each until you’ve established a hole.

An M35 (5% cobalt) drill bit will drill the majority of metals most people will need to drill. The added advantage of M35 cobalt drill bits is that they can be used in a hand held drill without too much fear of breakage.

A) This often comes down to personal preference. Many will argue that a paste is more efficient as there is no wastage as is sometimes associated with spraying an oil.

Hss drill bit vs cobaltfor metal

There are light-duty and heavy-duty tools that can drill into concrete. Tools that are considered heavy-duty weigh more and are used for creating holes that are larger than ½ inch in diameter. For most DIYers, drilling into concrete means making small holes for setting wall anchors or for driving screws. A ⅞-inch rotary hammer or a hammer drill is designed for these applications. Choose a 1-inch rotary hammer for making larger holes.

Put on your safety protection before you begin to drill. Then, get into position to drill by planting your feet firmly on the ground, shoulder-width apart. Hold the drill securely with both hands: Grip it in one hand like a handgun, and, if there’s no auxiliary handle for your spare hand, use that hand to brace the back of the rotary hammer or hammer drill while making a hole.

If within 3 months of purchase you are not satisfied with the performance of our drill bits you can return them and we will refund your purcahse price in full.

A) Yes, TTP HARD cobalt drill bits were tested for hardness by the international testing house SGS Testing. A Rockwell C Harndess Rating of 66 was You can view the certified of hardness here.

A) Unfortunately there are too many variables at play in drilling metal to accurately say how long any type of drill bit will last. These variable factors include :

HSS drill bit vsmasonry

The remaining 95% is made up of a mixture of other metals including molybdenum which greatly increases the drill bits ability to withstand higher temperatures.

* Only the 4 smallest diameter drill bits do not have 135 degree split point. They instaed have 118 degree point, this is due to the difficulty of creating a 135 degree point on such a small diameter drill bit.

A) Cobalt drill bits are drill bits comprising of different metals including a percentage of cobalt. The two most common cobalt percentages are

No, you need to drill a pilot hole into the concrete before driving a screw that’s rated for concrete like Spax #10 multi-material screw into the hole.

Clearly a drill bit which is used with respect, at the correct speed and lubricated regularly will last longer than one which is not.

Remove any artwork from the concrete wall and any furniture that’s below the desired hole location. Place a drop cloth below to collect debris as you bore into the wall. Make sure you have ample space to drill and that you have a stable surface on which to stand.

HSS vs cobalt vscarbide

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Drilling into concrete isn’t a DIY task for beginners. If you’ve read this guide on how to drill through concrete and don’t feel confident or comfortable using a hammer drill or rotary hammer, or if you don’t feel like you are strong enough to power through and bore a hole with the tool, it might be best to ask a professional to complete the project for you. Other reasons why you may want to call a professional include:

“Drilling into concrete means hard surface (concrete) meets harder surface (drill bit) with rotation force added. The result is that once the bit starts to twist it’ll “skate” off the desired hole location. The fix is easy. Once I mark the the hole location, I take my nail set…and give it a tap or two with my hammer. This creates a small hollow the bit can ride in to get started.”

They vary not only in what they can drill but can also vary greatly in price, hardness and suitability for either use in a hand drill or a pedestal drill.

If you’re feeling confident, turn the speed to full, keeping a firm grip on the tool with both hands, and drill into the concrete until the hole is complete. Periodically pull the drill out to brush away concrete dust. You can expect to bore a 2-inch hole in under a minute using a hammer drill, pausing every 15 to 20 seconds to clean out the debris.

Cobalt Drill BitSet

Cobalt Drillbits

The majority* of TTP HARD drill bits have a 135 deg split point which means they will start drilling/cutting immediately. The 135 deg split point also greatly reduces the chance of the drill bit ‘walking’ or sliding.

A) Cobalt drill bits should be used for drilling metal. They are particularly well suited to drilling harder metals such as stainless steel. This is due to the fact that the addition of cobalt enables the drill bit to perform at higher temperatures and also helps to reduce heat build up.

Tip: If you hit obstructions, never force the drill farther into the concrete. This can damage the bits or drill, or cause you to lose control of the drill and mess up your hole, damage the concrete surface, or worse.

Wayne Winton of Tri-County Locksmiths wrote an excellent piece for  Safe & Vault Technology entitled ‘The Ultimate Guide to Drill Bits‘ in which he highlights the capabilities of different types of metal drill bits.

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The tools that work best for drilling into concrete are rotary hammers and hammer drills. Rotary hammers are weighted to provide the power that’s needed to make either small holes or larger holes, and hammer drills are used to make smaller holes. If this is a rare situation and you don’t expect to need to drill into concrete often, you can rent both types of tools at a local home improvement center.

The lubricant properties of CUT-IT metal cutting paste was tested under 1300lbs of pressure for 30 minutes. The result was that CUT-IT lubricated well under theses conditions.

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Before drilling into concrete, make sure to have on hand safety glasses, ear protection, and gloves to wear while working. Because it’s a dense and porous material, concrete can chip and the bit can become very hot while drilling into it. Drilling into concrete also can be very loud.

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Whether you want to secure shelves in your garage, hang artwork on an interior concrete wall, or frame walls in your basement, drilling holes in concrete is possible with the right tools and bits. While there is more than one tool that can drill a hole into concrete, the best tool for the job depends on the size of hole that you need.

A) A metal cutting lubricant should be used when you are cutting or drilling any metal. Its purpose is to reduce friction which will make the cutting or drilling job easier and also reduce heat build up. Both these actions will result in inceasing the life of your drill bit or cutting tool.

Continue to operate the drill with a steady, light-but-firm touch so you’re never forcing it in. It’s critical to control the drill so it doesn’t run away once you begin work. When you lean in to bore the hole, the drill bit should be perfectly perpendicular to the concrete. Be prepared for some recoil from the drill’s hammer action. Concrete can have air pockets and pebbles that can make resistance unpredictable, with the result that it can be disturbingly easy to lose control of the tool for a moment.

A) Yes TTP CUT-IT metal cutting paste was tested by Subsea Fluid Services in accordance with ASTM D 3233-93 which is the Standard Test Methods for Measurement of Extreme Pressure Properties of Fluid Lubricants (Falex Pin and Vee Block Methods).

Keep reading to find out how to drill into concrete walls or floors, and learn what you need to know about selecting and using the right tool for the job so you can achieve your home improvement goals.