579 reviews analysed
1. COMOWARE Cobalt Drill Bit Set- 13Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Metal Indexed Storage Case, 1/16"-1/4"
Feature
- 13 PIECES INCLUDED: 1/16″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 11/64″, 3/16″, 13/64″, 7/32″, 15/64″, 1/4″.
- HSS WITH 5% COBALT: Durable, Higher Heat & Abrasion Resistance.
- PRECISE 135°SPLIT POINT & TWIST DESIGN: Prevent walking, clear chips and particles faster.
- PROFESSIONAL & WIDELY USE: M35 Cobalt HSS is more suitable for hardened material. Particularly successful in cutting through hard metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods, and also can be used for softer materials.
- ORGANIZED HOLDER: Set includes the drill bit holder with size index for easy storage and organizing.
2. CO-Z Large HSS Spiral Groove Step Drill Bit, 10 Sizes Titanium High Speed Steel 1/4" to 2-3/8" Drill Bit for Sheet Aluminium Metal Wood Hole Drilling, Big Multiple Hole Stepped Up Bit for DIY Lovers
Feature
- The step drill bit is made from upgraded high speed steel characterized by well-balanced toughness, wear resistance and red hardness properties for better and faster hole -drilling performance. The titanium coating makes the drill bit more durable so that it can last for years with uncompromised quality.
- The dual-flute design prevents metal fillings from flying around and clears chips faster thus it can drill more smoothly without heating up.
- The rapid strike tip drills twice as fast as the average step drills and can drill acrylic, PVC, wood, aluminum and iron sheets up to 0.2’’ in thickness.
- Our drill bit is bigger in size so it can drill holes with larger dimensions.
- 12 hole sizes: 1/4
- 3/8
- 19/32
- 3/4
- 1′
- 1’3/16
- 1’3/8
- 1’5/8
- 1’3/4
- 2′
- 2’3/16
- 2’3/8.
3. DEWALT DW5440 1/2-Inch by 16-Inch by 18-Inch ROCK CARBIDE SDS Plus Hammer Bit
Feature
- ROCK CARBIDE Tip for Longer Bit Life
- Elongated Four Flute Helix for Faster Material Removal
- Increased Steel Prevents Breakage
- For use with electric or cordless rotary hammers.
- Used for drilling holes in poured concrete and other masonry up to 1-1/8″ diameter
- ROCK CARBIDE tip for longer bit life
- Elongated four flute helix for faster material removal
- Increased steel prevents breakage
Description
Product description
115-DW5440 Features: -Rock Carbide tip maximizes carbide surface contact for longer life.-Titanium carbide for superior durability.-Four flute design cleans debris out for fast, efficient drilling.-Optimized core diameter maximizes hammer energy for greater impact power.-Style: Dia.:5/32”, Len.:6 1/2”, Qty:1, ULen:4 1/2” – Price is for 1 Bit.-Style: Dia.:3/16”, Len.:4”, Qty:1, ULen:2” – Price is for 1 Bit.-Style: Dia.:3/16”, Len.:6 1/2”, Qty:1, ULen:4 1/2” – Price is for 1 Bit.-Style: Dia.:3/16”, Len.:6 1/2”, Qty:25, ULen:4 1/2” – Price is for 1 Box, 25BIT/BOX.-Style: Dia.:3/16”, Len.:8 1/2”, Qty:1, ULen:6 1/2” – Price is for 1 Bit.-Style: Dia.:3/16”, Len.:10”, Qty:1, ULen:8” – Price is for 1 Bit.-Style: Dia.:3/16”, Len.:12”, Qty:1, ULen:10” – Price is for 1 Bit.-Style: Dia.:1/4”, Len.:4”, Qty:1, ULen:2” – Price is for 1 Bit.-Style: Dia.:1/4”, Len.:6”, Qty:1, ULen:4” – Price is for 1 Bit.-Style: Dia.:1/4”, Len.:8 1/2”, Qty:1, ULen:6 1/2” – Price is for 1 Bit.-Style: Dia.:1/4”, Len.:12”, Qty:1, ULen:10” – Price is for 1 Bit.-Style: Dia.:1/4”, Len.:14”, Qty:1, ULen:12” – Price is for 1 Bit.-Style: Dia.:5/16”, Len.:6”, Qty:1, ULen:4” – Price is for 1 Bit.-Style: Dia.:5/16”, Len.:12”, Qty:1, ULen:10” – Price is for 1 Bit.-Style: Dia.:3/8”, Len.:6”, Qty:1, ULen:4” – Price is for 1 Bit.-Style: Dia.:3/8”, Len.:10”, Qty:1, ULen:8” – Price is for 1 Bit.-Style: Dia.:3/8”, Len.:12”, Qty:1, ULen:10” – Price is for 1 Bit.-Style: Dia.:3/8”, Len.:18”, Qty:1, ULen:16” – Price is for 1 Bit.-Style: Dia.:7/16”, Len.:12”, Qty:1, ULen:10” – Price is for 1 Bit.-Style: Dia.:1/2”, Len.:6”, Qty:1, ULen:4” – Price is for 1 Bit.-Style: Dia.:1/2”, Len.:10”, Qty:1, ULen:8” – Price is for 1 Bit.-Style: Dia.:1/2”, Len.:12”, Qty:1, ULen:10” – Price is for 1 Bit.-Style: Dia.:1/2”, Len.:18”, Qty:1, ULen:16” – Price is for 1 Bit.-Style: Dia.:1/2”, Len.:24”, Qty:1, ULen:22” – Price is for 1 Bit.-Style: Dia.:9/16”, Len.:12”, Qty
From the Manufacturer
DEWALT DW5440 1/2-Inch x 16-Inch x 18-Inch ROCK CARBIDE SDS Plus Hammer Bit
4. Migiwata M35 Cobalt Steel Fractional 9/32” Dia. x 4.25” Long Twist Drill Bit Set of 5pcs, Jobber Length and Round Shank, Self-centering 135° Split Point, Extremely Heat Resistant, for Metalworking
Feature
- COBALT STEEL – Manufactured from M35 grade cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.
- FOR STAINLESS STEEL – Particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate.
- SELF-CENTERING – The 135° quick-cut split points are self-centered and will penetrate quickly with less pressure. No center punch is needed. Will not “walk” or “wander”.
- 5PC SET – The set includes 5pcs of 9/32” diameter M35 grade cobalt steel twist drill bits, packed in a plastic case for easy storage and carrying. Total lenght: 4.25 inch
- working length: 2.95 inch.
- SATISFACTION GUARANTEED – Here at Migiwata we do care about your satisfaction. We try our best to ensure each product is in perfect condition before you get it, but if something is not up to your satisfaction, please contact us for a full refund or replacement.
Description
M35 Grade Cobalt Steel
Cobalt drill bits are not made of pure cobalt, but rather a steel alloy with certain percent cobalt. The 5-percent alloy is known as M35 grade. The cobalt increases the strength of the steel and makes it more heat-resistant.
135 Degree Split Point
The flater the drill, the smaller the chip width. This means less force required to remove metal, compared with lower angles like 90° and 118°. This is important on hard stuff, because your power requirements are already more than mild steel, so making the chip load less helps. It also reduces heat since less surface area is generating the cut.
Lowest Cost Per Hole Drilled
Cobalt drill bits are more expensive than other drill bits, but if you regularly drill through metal, they are a good investment since they tend to last longer. With an extended tool life, Migiwata cobalt drill bits will give you the lowest cost per hole drilled.
For Drilling Stainless Steel
This set of Migiwata M35 cobalt steel drill bits are particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too.
Tests shows that the M35 cobalt steel drill bits can penetrate a 5mm-thick 304 stainless steel plate in 5 seconds.
Not Suitable for Hardened Steel
M35 grade cobalt drill bits are NOT suitable for hardened steel, high carbon steel and heat-treated steel by the experiences of some customers, although some others said they worked well with hardened steel.
Cooling Liquid Required
Please use with cooling liquid to prolong the working life of the drill bits and to avoid overheating and breakage.
BUY WITH CONFIDENCE:
If you’re not completely satisfied with the product quality, please contact us. Refund or free replacement.
5. Hymnorq Metric M35 Grade HSS-CO 6.5mm Twist Drill Bit Set of 5pcs – Jobber Length, Fully Ground and Straight Shank – 5% Cobalt Added and Extremely Heat Resistant -Drilling Stainless Steel and Iron
Feature
- COBALT STEEL – Manufactured from M35 grade cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.
- FOR STAINLESS STEEL – Particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too. Not for heat treated steel / hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate according to our suggested RPM chart.
- SELF-CENTERING – The 135° quick-cut points are and penetrate quickly with less pressure. No center punch is needed. Will not “walk” or “wander”.
- 10PC SET – The set includes 10pcs of 6.5mm diameter M35 grade cobalt steel twist drill bits, packed in a convenient plastic case as showed in the picture.
- SATISFACTION GUARANTEED – Here at Migiwata, we do care about your satisfaction. We try our best to ensure each product is in perfect condition before you get it, but if something is not up to your satisfaction, please contact us for a full refund or replacement.
6. IRWIN 91140 5/8-Inch Silver and Deming Drill Bit, Pack of 1
Description
Product Description
The Irwin Tools 91140 5/8-Inch Black Oxide 118-Degree-S&D, F, Bulk – Pack of 3 is ideal for basic drilling applications in metal, wood and plastic. Constructed of M-2 high speed steel for the best combination of strength, heat resistance, and wear resistance, this bit will get the job done quickly. The Standard 118 degree point helps keep the bit from walking and allows it to start quickly.
From the Manufacturer
IRWIN DRILL 5/8 SILVER AND DEMING 118′ BLACK OX/BRT TUBED
7. Dry Drill Core Bits for Brick, Concrete Block, Masonry – 2-1/2" Diameter 5/8"-11 Threaded #30/40 Diamond Grit
8. JINGLING 50mm 2" inch Diamond Coated Tool Drill Bit Hole Saw for Glass Tile Ceramic Marble Color Silver
Feature
- Product Name: 50mm Diamond tip drill bit, 50 mm Glass hole saw bit, 2″ inch Glass drill bit
- Suitable for use in drill hole on glass, tile, ceramic, stone, marble or granite
- Hole Diameter: 50mm(2″)
- Shank Diameter: 10mm (3/8″ )
- Total Length: 55mm
- Start drill at 45 degree to surface and align to 90 Degree as hole forms
- The hole does not need further work because the cut is clean
9. Drill America 1/8" Solid Carbide Drill Bit, DMOD Series
Feature
- Designed for drilling abrasive materials when drilling accuracy must be maintained
- Can be used in high temperature drilling applications
- Used on materials such as cast iron, non-ferrous alloys, high silicon aluminum, copper, plastics, bronze, hard rubber, plexiglass, and other similar materials
- Solid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle
- Must be used with a rigid tool-holding systems.
Description
Drill America DMOD series solid carbide drill is designed for drilling abrasive materials when drilling accuracy must be maintained and/or when used in high temperature drilling applications. Solid carbide drill is used on materials such as cast iron, the non-ferrous alloys, high silicon aluminum, copper, plastics, bronze, hard rubber, plexiglass, and other similar materials.
10. Hymnorq M35 Cobalt Steel Fractional 13/64 Inch Dia. x 3.62 Inch Long Twist Drill Bit Set of 10pcs, Jobber Length and Round Shank, 135 Degree Split Point Heat Resistant for Stainless Steel
Feature
- COBALT STEEL – Manufactured from M35 grade cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.
- FOR METALWORKING – Particularly successful in cutting through hard metals(hardness less than HRC38°) such as stainless steel and cast iron, although they can be used for softer materials like copper and aluminium, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate.
- SELF CENTERING – The 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. The bits will not “walk” or “wander”. Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks.
- 10PC SET – The set includes 10pcs of 13/64” diameter M35 grade cobalt steel twist drill bits, packed in a plastic case for easy storage and carrying. Total lenght: 3.62 inch
- working length: 2.44 inch. Manufactured to German DIN338 standard.
- DOWNLOADABLE USER GUIDE – We’ve summed up some tips of drilling metals, including a RPM chart for several common metals, based on our reviews and some articles on the internet. In most cases, our customers would get a much better result with these tips. Welcome to download.
Conclusion
By our suggestions above, we hope that you can found Heating Drill Bit for you.Please don’t forget to share your experience by comment in this post. Thank you!
