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About Me
How to Use a Step Drill Bit?
When I first came across step drill bits I was actually quite confused about their use. Once I started looking into their uses I was really excited to invest in my own set of step drill bits. With experience, I have come to appreciate step drill bits even more with their multitude of uses.
If you are new to step drill bits, this article will answer each and every question in your mind.
How to use a step drill bit? You will use a step drill bit just like another drill bit with an exception of its purpose of use. For drilling with a step drill bit use a center punch to first mark the center. Now drill steadily with firm pressure. Step drill bits only work with thin metal sheets and can make holes of different sizes depending on the number of steps in your drill bit. You can also use it to enlarge or deburr an existing hole.
About Invention
Drill bits are cutting tools used to create cylindrical holes, almost always of circular cross-section. Drill bits come in many sizes and have many uses. Bits are usually connected to a mechanism, often simply referred to as a drill, which rotates them and provides torque and axial force to create the hole.
What is a Step Drill Bit?
A step drill bit is a conical shape drill bit to make different size holes with one bit. It has multiple levels with increasing diameters from tip to end. It has a sharp groove at one side which acts as the cutting edge. The step drill bit is also used to enlarge or deburr holes. This drill bit is used particularly for metals but can also work with wood, plastic, etc.
A step drill bit with a straight flute is called a counter-bore step drill bit while a step drill bit with a twisted flute is called a countersink step drill bit. The flute or the groove profile serves as a channel system for collection and chip removal during drilling.
I have found the step drill bit to be a valuable tool with its ability to replace numerous twist bits, deburrers, and reamers. There are a number of reasons you should use a step drill bit for drilling into sheet metals.
I have compiled a list of reasons I recommend every DIY enthusiast to add step drill bits to their toolbox.
Multiple Diameters: With multiple diameters, a step drill bit saves you from the hassle of changing drill bits when you need to drill a lot of holes of different sizes. You can use a step drill bit to drill holes of different diameters.
Selt-tapping tip: Step drill bits have self-tapping tips, which allow you to drill without drilling a pilot hole in thin materials.
Flute: Flute on a step drill bit allows for easy removal of waste materials which prevents clogging as well as heating up of the drill bit.
Reaming: Step drill bit gives you smooth edges on the holes instantly thus eliminating the need for a reamer.
Deburring: You can also use a step drill bit to deburr the hole you have drilled by lightly touching each side of the hole with bevel of the next step.
And although step drill bits have a range of benefits, there are a few downsides as well.
Twist Drill Bit
The twist drill bit is the type produced in largest quantity today. It comprises a cutting point at the tip of a cylindrical shaft with helical flutes; the flutes act as an Archimedean screw and lift swarf out of the hole.
History
The twist drill bit was invented by Steven A. Morse of East Bridgewater, Massachusetts in 1861.The original method of manufacture was to cut two grooves in opposite sides of a round bar, then to twist the bar (giving the tool its name) to produce the helical flutes. Nowadays, the drill bit is usually made by rotating the bar while moving it past a grinding wheel to cut the flutes in the same manner as cutting helical gears.
Twist drill bits range in diameter from 0.002 to 3.5 in (0.051 to 88.900 mm) and can be as long as 25.5 in (650 mm).
The geometry and sharpening of the cutting edges is crucial to the performance of the bit. Small bits that become blunt are often discarded because sharpening them correctly is difficult and they are cheap to replace. For larger bits, special grinding jigs are available. A special tool grinder is available for sharpening or reshaping cutting surfaces on twist drill bits in order to optimize the bit for a particular material.
Manufacturers can produce special versions of the twist drill bit, varying the geometry and the materials used, to suit particular machinery and particular materials to be cut. Twist drill bits are available in the widest choice of tooling materials. However, even for industrial users, most holes are drilled with standard high speed steel bits.
The most common twist drill bit (sold in general hardware stores) has a point angle of 118 degrees, acceptable for use in wood, metal, plastic, and most other materials, although it does not perform as well as using the optimum angle for each material. In most materials it does not tend to wander or dig in.
A more aggressive angle, such as 90 degrees, is suited for very soft plastics and other materials; it would wear rapidly in hard materials. Such a bit is generally self-starting and can cut very quickly. A shallower angle, such as 150 degrees, is suited for drilling steels and other tougher materials. This style of bit requires a starter hole, but does not bind or suffer premature wear so long as a suitable feed rate is used.
Drill bits with no point angle are used in situations where a blind, flat-bottomed hole is required. These bits are very sensitive to changes in lip angle, and even a slight change can result in an inappropriately fast cutting drill bit that will suffer premature wear.
Long series drill bits are unusually long twist drill bits. However, they are not the best tool for routinely drilling deep holes, as they require frequent withdrawal to clear the flutes of swarf and to prevent breakage of the bit. Instead, gun drill bits are preferred for deep hole drilling.
What type of wood drill bit should you use for what job?
The screw thread around this drill bit gives away that this is a snake drill bit. This spiral-shaped drill has a carver and a sharp centering point, which helps you put it into the wood at exactly the right spot. The spiral around the drill ensures the wood chips will be removed neatly, so you'll make a smooth, clean drill hole. Don't forget to drill at a low RPM, so the drill bit can make its way through the material calmly. A snake drill is useful for making deep holes, so thick wooden girders are no match for this type of wood drill bit.
Everything You Need to Know About Chisels
We’re going to discuss possibly the most important tool that can 10x your woodworking skills. That’s right, this post is all about chisels! Learn about the kinds of chisels, chisel sizes, the differences in steel, western chisels vs. foreign chisels, tool safety, and so much more.
If you’re like many woodworkers or DIYers, you’ve probably already got a few tools in your workshop. I’m guessing a drill, a saw, maybe some clamps, and you’ve probably made some pretty cool things! Check out this post on my nine must-have tools to 10x your woodworking skills. And if you missed any of these other posts in our woodworking 101 series check them out here: how to sharpen a chisel, how to use a carving knife, and how to cut dovetails by hand.
Now imagine you could build a table without any glue or screws that is stronger than any table you’ve ever sat at.
That sounds pretty cool, right?
You can do it with just a few hand tools that will take your projects from DIY to Craftsmen with just a little bit of practice and knowledge along the way.
Circular saw blade is an important tool and is widely used in wood industry. Its stability, cutting precision, and material-saving ability are the most important features, especially for wood processing industry because of the shortage of precious wood. The Chinese government strongly supports the improvement of timber utilization. Therefore, circular saw blade is becoming thinner and thinner currently for reducing kerf loss and improving the utilization of materials.
However, thermal stress is produced when circular saw blade is working, because the temperature at the edge of the blade is higher than that in other regions of the blade. It will cause high tangential compressive stress on the edge of the circular saw blade, causing a buckling deformation that reduces cutting precision, increases kerf loss, and shortens the saw’s life. Thin circular saw blade is more easily affected by thermal stress. For saving materials, the stability of saw blade is very important, especially for thin circular saw blade.
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Check back often for discussion about the latest news in the Chinese art and antique world. Also find out about the latest Asian art auctions at Sotheby's, Christie's, Bonhams and Tajans.
Auction results for: fine porcelain, ceramics, bronze, jade, textiles and scholar's objects. As well as Japanese, Thai, Vietnamese and other Asian cultures.
Thank you,
Peter Combs
Topics and categories on The BidAmount Asian Art Forum | Chinese Art
Kangxi vases, Kangxi dishes and chargers, Kangxi ritual pieces, Kangxi scholar's objects, Qianlong famille rose, Qianlong enamels, Qianlong period paintings, Qianlong Emporer's court, Fine porcelain of the Yongzheng period. Chinese imperial art, Ming porcelain including Jiajing, Wanli, Xuande, Chenghua as well as Ming jades and bronzes.
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The BidAmount Asian Art Forum | Chinese Art
A free Asian art discussion board and Asian art message board for dealers and collectors of art and antiques from China, Japan, Korea, Thailand, Cambodia, Vietnam and the rest of Asia. Linked to all of the BidAmount Asian art reference areas, with videos from plcombs Asian Art and Bidamount on YouTube. Sign up also for the weekly BidAmount newsletter and catalogs of active eBay listing of Chinese porcelain, bronze, jades, robes, and paintings.
The art of calligraphy - and for the ancient Chinese it certainly was an art - aimed to demonstrate superior control and skill using brush and ink. Calligraphy established itself as one of the major Chinese art forms during the Han dynasty (206 BCE - 220 CE), and for two millennia after, all educated men were expected to be proficient at it.
The Museum’s collections of Asian art span nearly five millennia and encompass the cultures of China, the Himalayas, India, Japan, Korea, and Southeast Asia. In 2007, the Museum launched an initiative to create dedicated galleries for the collection, beginning with a gallery for the arts of Korea ...
Chinese art is full of symbolism, in that artists typically seek to depict some aspect of a totality of which they are intuitively aware.
China Online Museum is the finest online museum of Chinese art. It features Chinese calligraphy, painting, ceramics, bronzes, carving, and other artworks.
Chinese Ceramics & Works of Art. Overview Upcoming auctions Contacts Auction results ... Christie’s sales of Chinese ceramics and works of art showcase centuries of Chinese history. Held throughout the year in London, New York, Paris and Hong Kong, they attract a wide audience of collectors and connoisseurs vying for pieces as diverse as ...
Explore Asian Art Week. Contact the Specialist Department. Chinese Paintings ... Senior Specialist, Head of Sale. ehammer@christies.com. Tel:+1 212 641 5760. Bid in-person or online for the upcoming auction:Fine Chinese Paintings on 10 September 2019 at New York. Bid in-person or online for the upcoming auction:Fine Chinese Paintings on 10 ...
Discover an abundance of must-see art from all corners of a vast continent at Christie’s NY Asian Art Week. From contemporary classical and Chinese paintings to works with exemplary provenance from the Art Institute of Chicago, our Rockefeller Paza galleries will be full of ancient treasures and contemporary masterworks in a salute to the vibrant arts of Asia.
Sold to benefit The Art Institute of Chicago’s Asian Art Acquisition Fund, the sale features 84 lots with a focus on Ming and Qing porcelains, and offers a rare insight into the taste for collecting Chinese ceramics and works of art in the Midwest from the end of the 19th century through the 1980s. Highlights include two Wanli wucai garlic-head vases, a Qianlong mark and period, blue and ...
Specialist, Chinese Paintings, Christie's London Dr Malcolm McNeill is a Specialist in Chinese Paintings at Christie’s, based in London. He previously worked as an assistant curator of the Chinese collections and the Victoria and Albert Museum in London, as a researcher at the British Museum, and as a translator and tour guide at the National Palace Museum in Taipei.
The Christie's Education 2020 Conference: The Chinese Art Market 18 Jun 2019 Christie’s Education is delighted to announce our first international academic conference in Asia which will take place in Hong Kong from 26-27 November 2020 at the Hong Kong Convention and Exhibition Centre and will run in parallel with Christie’s Hong Kong Autumn Auctions.
The summer Chinese Art sale in Hong Kong will feature works of art from several private collections, including Qing porcelains and textile from the collection of the legendary Chinese art dealer A. W. Bahr (1877–1959), fine gilt bronze Buddhist sculptures from an old Hong Kong collection, an East Asian collection of Qing dynasty wine cups and jades, and a Japanese collection of Song ceramics ...
Sotheby's Chinese Works of Art Department holds two auctions each year in London, New York, Hong Kong and Paris.
Chinese Art - View Auction details, bid, buy and collect the various artworks at Sothebys Art Auction House.
With more than 340 Chinese works of art dating from the Neolithic to the Republic periods, highlights of this sale include a selection of Qing Imperial monochromes from the collection of Arnold and Blema Steinberg, early ceramics from the Art Institute of Chicago and Chinese porcelain and works of art from the collection of Henry Arnhold.
Results: Sotheby's Asia Week achieved $52.4 million in six strong auctions, exceeding pre-sale estimates. With 76.5% of lots sold and 60.3% of lots surpassing high estimates, the Asian art sales at Sotheby's indicate continued collector interest in the finest works of art from China, India and and the Himalayas.
Today's sale of Important Chinese Art will proceed as planned with sessions at 10 AM and 2 PM EDT. Sotheby's will be monitoring the weather conditions throughout the day and will be available to coordinate alternative bidding options should conditions make it difficult for clients to attend the auction in person.
Bonhams Chinese Art department is renowned for offering the finest works of art representing the richness and breadth of China's artistic heritage, particularly Imperial porcelain, white and spinach green jades, cloisonné and Buddhist art. Specialised international auctions are held globally, including London, Hong Kong and San Francisco.
Bonhams : Chinese Works of Art We use cookies to remember choices you make on functionality and personal features to enhance your experience to our site. By continuing to use our site you consent to the use of cookies. Please refer to our privacy and cookie policies for more information.
Bonhams Fine Art Auctioneers & Valuers: auctioneers of art, pictures, collectables and motor cars. We use cookies to remember choices you make on functionality and personal features to enhance your experience to our site. By continuing to use our site you consent to the use of cookies. ... Chinese Art (US) General enquiries
Bonhams : Fine Chinese Art We use cookies to remember choices you make on functionality and personal features to enhance your experience to our site. By continuing to use our site you consent to the use of cookies. Please refer to our privacy and cookie policies for more information.
Bonhams Fine Art Auctioneers & Valuers: auctioneers of art, pictures, collectables and motor cars Bonhams : Asian Art We use cookies to remember choices you make on functionality and personal features to enhance your experience to our site.
Bonhams are international auctioneers of fine Chinese and Japanese art. We specialise in rare Imperial and Export Chinese ceramics and works of art, as well as Japanese ceramics, fine and decorative works of art from the Neolithic Period to the 20th century. View on map
Bonhams Fine Art Auctioneers & Valuers: auctioneers of art, pictures, collectables and motor cars. We use cookies to remember choices you make on functionality and personal features to enhance your experience to our site. By continuing to use our site you consent to the use of cookies. ... Asian Art Bonhams. Work. 22 Queen St.