Bit Drill
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 35 BOSCH HAMMER DRILL CARBIDE MASONRY CONCRETE BIT USA  US $46.00
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 20 BLU MOL DRILL BITS METAL WOOD 135 SPLIT POINT 1 8 US $4.99
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 20 BLACKDECKER BULLET HSS DRILL BITS 13 64GERMANY US $10.50
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 13pc SOLID COBALT HSS DRILL BIT SET NEIKO USA US $10.50
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 vintage mechanic drill bit set US $24.99
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 50 Micro Carbide Drill Bit Assortment A US $18.95
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 50 Micro Miniature Carbide Drill Bit Assortment B US $19.95
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 50 Micro Carbide Drill Bit Assortment US $17.95
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 50 Carbide Micro Miniature Drill Bits US $15.95
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Black & Decker 15557 10-Piece Drill Bit Set List Price: $9.99 Sale Price: $3.76  |
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Includes (1) 1/16-in HSS Drill Bit, (1) 5/64-in HSS Drill Bit, (1) 3/32-in HSS Drill Bit, (1) 7/64-in HSS Drill Bit, (1) 1/8-in HSS Drill Bit, (1) 9/64-in HSS Drill Bit, (1) 5/32-in HSS Drill Bit, (1) 11/64-in HSS Drill Bit, (1) 3/16-in HSS Drill Bit, (1) 1/4-in HSS Drill Bit |
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DEWALT DW1163 13 Piece Black Oxide Split Point Twist Drill Bit Assortment List Price: $17.49 Sale Price: $8.99 |
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The DeWalt DW1163 13 Piece Black Oxide Drill Bit Assortment includes a selection of commonly used bits that have been precision crafted to provide improved durability and faster cutting. Featuring a 135-degree split point style that reduces walking at startup to provide you with more precise performance, these bits make quick work of tough tasks... |
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Bosch TI18 18-Piece Titanium Twist Drill Bit Assortment with Plastic Case List Price: $46.64 Sale Price: $25.61 |
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Bosch titanium drill bits offer the best durability and speed for general-purpose drilling applications. While the hardness of their titanium nitride coating protects the bits from chipping and cracking, the lubricity defends the bits from heat buildup--the number one cause of product failure... |
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DEWALT DW1956 Pilot Point 16-Piece Twist Drill Bit Assortment List Price: $43.37 Sale Price: $18.43 |
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The DeWalt DW1956 16-piece Pilot Point twist drill bit assortment comes with pilot point tips for starts on contact that result in clean, accurate holes. These bits are designed to reduce lock-up on breakthrough, and also feature a no-spin shank that eliminates the frustration of bit spinning in the chuck... |
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Neiko 3-Piece Titanium Step Drill Bits Set M2 Steel - 28 Sizes, SAE List Price: $29.99 Sale Price: $6.49 |
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Made with drop forged heat treated high speed steel (HSS) with titanium nitride coating for longer life time. High speed, titanium nitride coated steel Replaces 28 separate drill bits Two fluted design for fast, smooth cutting... |
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DEWALT DW5207 7-Piece Premium Percussion Masonry Drill Bit Set List Price: $31.88 Sale Price: $16.73 |
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An excellent accessory for your cordless hammer drill, this DEWALT seven piece drill bit set provides function and durability for all your rugged drilling needs. Applications include drilling nice, neat holes into masonry, concrete, rock, and artificial stone... |
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Makita T-01389 62-Piece Impact Drill-Driver Bit Set List Price: $39.80 Sale Price: $20.99 |
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The Makita T-01389 62-piece drill and driver set is a great value -- more accessories, more savings. Every tool is black-oxide coated to resist corrosion, and given a proprietary heat treatment for sharper, longer lasting life... |
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Milwaukee 48-89-1105 1/16-to-1/2-Inch Titanium-Coated 20-Piece Twist Drill Bit Assortment List Price: $48.90 Sale Price: $23.00 |
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The Milwaukee 20-piece 1/16-inch to 1/2-inch titanium-coated twist drill bit assortment in plastic index features 3-flat no-spin shanks on 13/64-inch and larger, a 135-degree split point, and a titanium coating that withstands high temperatures, reduces friction and increases wear resistance... |
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Makita T-01725 70-Piece Impact Drill-Driver Bit Set List Price: $45.00 Sale Price: $23.05 |
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DEWALT DW1361 Titanium Pilot Point Drill Bit Set, 21-Piece List Price: $49.72 Sale Price: $26.97 |
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DEWALT's titanium drill bits have a titanium coating that provides longer life when drilling in non-ferrous metals. These bits are also suitable for drilling in wood and plastic and are ideal for commercial and residential applications... |
What is a better Drill Bit for drilling through metal? 118 or 135 degrees?
Im only going to use these Drill Bits for metal. Do you recommend a brand or kind of drill bit. I want a bit that will drill through hard metal too and last a good amount of time.
For most uses the standard Twist Drill bit (118deg)
will work just fine.
But tool life will depend a lot on material to be drilled , drill speed and feed...As well as lubrication.
Basically the larger the bit the slower the RPM and a little pressure is OK.
The small the bit the higher the RPM and lesser pressure involved...
Steel and copper metals will take regular lubricants like cutting oil or plain oils...While aluminum often requires a wax or special formulated cutting fluid...Aluminum heats up the bit rather rapidly..
High Speed steel will usually do just fine for most drilling into mild steel , brass, copper or aluminum..
Carbide bits are needed when working harder material like tool steel...Carbide is harder but more expensive and more brittle....
Here is a little more data:
http://en.wikipedia.org/wiki/Drill_bit
