10 Best 28mm Step Drill Bit Metal In The Us - Black Friday 2024
Best Choice1
EZARCEZARC Step Drill Bit for Metal, M35 Cobalt Unibit Step Drill Bit Set 1/8"-7/8"(3pcs) Wear-Resistant AlTiN Coated, 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Plastic
Main highlights- 【Please Note】Material thickness: Suitable for metal sheet up to 1/8" (3 mm) thick and stainless steel sheet up to 1 mm thick. Add cutting oil or use coolant during continuous operation. Due to the larger cutting angles, the startup speed may be slower
- 【M35 HSS Step Drill】M35 cobalt high-speed steel, through heat treatment, achieves toughness and bending strength that surpass standard high-speed steel, making this step drill bit more suitable for cutting hard materials
- 【C-Profile Design】EZARC step drill bits feature a triple-flute design for increased stability, effectively reducing deviation during the cutting process. Additionally, the 'C-profile' cutting edge ensures smoother cutting and an increased cutting speed
- 【AlTiN Coating】Step bits coated with aluminum titanium nitride, rated at 89HRC for exceptional hardness and thermal properties. This coating offers superior resistance to heat, wear, and corrosion, with high adhesion and low friction
- 【3 Pcs Step Drill Bit Set】 The step drill bits are neatly organized in a compact case for easy transportation and storage. The spiral flutes and stepped design of the drill bits allow for seamless and efficient drilling through various thicknesses.
9.9Exceptional
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Value for Money2
THINKWORKTHINKWORK Four Spiral Flute Step Drill Bit Set, 5 Pcs HSS Step Drill Bits (1/8"-1-3/8") Unibit Step Drill Bit, 1/4" and 3/8" Shank Step Bits for Aluminum, Wood, Plastic, Metal
Main highlights- VERSATILE DRILLING CAPABILITY: With its powerful drilling capability, our step drill is suitable for piercing holes in various materials, including thin metal, copper, aluminum, iron, carbon steel, wood, and plastic. It's an essential addition to any DIY enthusiast's toolbox and can be utilized for a wide range of household projects.
- USER-FRIENDLY DESIGN: Our step drill bits feature laser-engraved step sizes, ensuring clear visibility and eliminating concerns about wear and tear during use. This design element enhances convenience and accuracy, making the drilling process easier and more efficient.
- IMPROVED STABILITY: Unlike ordinary step drills that often suffer from deflection during cutting, our four-flute step drill bit provides exceptional stability. This feature enhances accuracy and cutting speed, making it perfect for stainless steel drilling. In fact, it offers a significantly longer service life compared to regular step drills.
- ENHANCED DURABILITY: Our industrial-grade step drill set is meticulously crafted from high-quality alloy steel and undergoes multiple manufacturing processes. Each drill bit is carefully inspected at the factory to ensure superior quality and longevity.
- DEDICATED CUSTOMER SERVICE: While our products undergo stringent quality inspections, unforeseen issues caused by accidental factors may occur. In such cases, we are committed to providing professional customer service. If you encounter any quality problems, please contact us via Amazon, and we will promptly replace the defective item with a new one.
- 5PCS NITRIDING STEP BIT KIT: Our 5-piece nitriding step bits set includes a range of sizes to cater to various drilling needs. The set comprises step bits with diameters of 3/16"-1/2" (6 steps), 1/8"-1/2" (13 steps), 1/4"-3/4" (9 steps), 3/16"-7/8" (12 steps), and 3/16"-1-3/8" (19 steps). All these bits come in a sturdy blow molded case for easy storage and transport.
9.8Exceptional
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3
ZELCANZELCAN 10 Sizes Titanium Step Drill Bit, 1/4 to 1-3/8 Inches High Speed Steel Drill Cone Bits for Sheet Metal Hole Drilling Cutting, HSS Multi Size Hole Stepped Up Unibit for DIY Lovers Electrician
9.1 Simple to use8.0 worth the money8.0 lasts a long timeWhy we love it
Durable and long-lasting high-speed steel construction.
Titanium coating resists heat, corrosion, and rust.
Tri-flatted shank prevents slipping in power tools.
9.7Exceptional
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4
ZELCAN23% OffZELCAN Step Drill Bits, HSS 5PCS Titanium Step Drill Bit Set, 50 Sizes in 5 High Speed Steel Unibit Drill Bits Set for Sheet Metal with Aluminum Case, Multiple Hole Stepped Up Bits for DIY Lovers
8.9 Precision8.9 Flexibility8.2 worth the moneyWhy we love it
Extreme Durability: Long lasting shiny.
Drill Different Sizes: 1/4, 3/8 1/2 in.
Smooth Drilling: Fast precise.
9.4Excellent
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5
OXMULOXMUL M35 Step Drill Bit for Metal, 1/4" to 1-3/8", Cobalt Bits, Heavy Duty for Stainless Steel, Metal, Aluminum, Copper, 6-Steps. 204
Main highlights- 【M35 Cobalt Bits】 Prefect for Stainless Steel/Metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets. This Drill bit can successfully drill more and more holes easily into Stainless Steel plate like knife through butter
- 【Heavy Duty for Stainless Steel】 The Cobalt Drill Bits can drill 6X longer life and 2X faster. This Drill bits is heavy duty for Stainless Steel, Metal, Galvanized Steel, Aluminum,Iron, Wood, PVC and Copper. This step bit is tough,sharp and can drill many holes on hard metal like a work horse
- 【A Work Horse】This spiral shaped step bit is a work horse. Easily drilled through the steel platform of your zero-turn mower, stainless steel sink, cold rolled steel, lug bolt, old rack, iron rotors, tractor bucket, washer, heavy steel loader bucket was made for a tractor, hydroponics tubing,water pipe, cabinet
- 【6 Steps︱2-Straight-Flute︱3/8" Shank】 6 steps: from 1/4", 7/8", 1-1/8", 1-7/32", 1-1/4" to 1-3/8". 2-Straight-Flute:Clears Chips faster
- M35 COBALT BIT / HEAVY DUTY for SS /1/4" to 1-3/8"
9.1Excellent
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6
STROTON13% OffSTROTON 4-32mm Metric 5% Cobalt Step Drill Bit for Stainless Steel and Hard Metal (15 Steps)
8.9 lasts a long time8.9 worth the moneyWhy we love it
The material is designed for cutting through tough surfaces like stainless steel and iron.
It can drill many holes quickly and easily.
The cobalt step drill bit is a great value for your money.
8.8Very Good
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7
WORKPROWORKPRO 3-Piece Step Drill Bit Set, 1/4" Hex Shank Quick Change High Speed Steel Titanium Coated Drill Bits for Plastic, Sheet Metal, Aluminum Hole Drilling, Well-Organized Bag Included,Metric
9.3 worth the money9.1 lasts a long time9.1 Long lifeWhy we love it
High durability sharpness
Faster smoother cutting
Easy storage transport
8.7Very Good
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8
TEMOTEMO M35 Cobalt Spiral Flute Step Drill, 12 Size From 3/16 Inch To 7/8 Inch, 1/4 Inch Hex Shank
Main highlights- double spiral flutes for more efficient swarf clearance; 1/4 Inch hex Shank with quick release slot to eliminate slipping; Self-starting for clean holes in thin materials; M35 cobalt HSS to cut stainless steel. The step drill bit is made with M35 cobalt. It is ideal for variety of materials from stainless steel, metal, plastic, fiberglass to wood. They also help to enlarge existing holes. M35 HSSCo is a high speed steel alloy made up of 5% cobalt. M35 is similar to M2, but with 5% cobalt added.
- US-BASED CUSTOMER SERVICE: Available by chat, email, phone, or visit us at our customer service center in La Crosse, WI.
- The addition of cobalt increases heat resistance. It is widely used in metal manufacturing because of its ability to resist wear over conventional high speed steels, allowing for shorter cycle times in production environments due to higher cutting speeds or from the increase in time between tool changes. M35 is also less prone to chipping when used for interrupted cuts.
- M35 cobalt step drill 1/4" (6.35mm) hex shank 12 hole 3/16" (4.76mm) to 7/8" (22.22mm)
- 12 hole sizes: 3/16" (4.76mm), 1/4" (6.35mm), 5/16" (7.94mm), 3/8" (9.52mm), 7/16" (11.11mm), 1/2" (12.7mm), 9/16" (14.29mm), 5/8" (15.88mm), 11/16" (17.46mm) , 3/4" (19.05mm), 13/16" (4.76mm), 7/8" (22.22mm) with 1/16" (1.59mm) increments. The size marks are stamped next to each step to ease the use.
8.6Very Good
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9
LichampLichamp Unibit Step Drill Bit for Metal, Genuine M2 Drill Stepper Bit for Hard Metal Heavy Duty, 11 Sizes from 1/4" to 1-3/8", Dual Straight Grooved with Hex Drive, A2BK
Why we love it
11 hole sizes in 1 bit
Durable sharp M2 steel
Multiple step diameters
8.4Good
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10
Aocoom15% OffAocoom Titanium-Coated Step Drill Bit Set for Metal, High-Speed Steel Stepped Drill Set, 50 Sizes with Automatic Center Punch, Includes Aluminum Case
Main highlights- 【Wide Range of Applications】Ideal for drilling holes in plastic, aluminum, wood, iron, and various other types of sheet metal (it is recommended to add coolant when drilling metal plates, and the speed should not be too high). Suitable for home DIY, handymen, and professionals.
- 【Versatile Hole Processing】Our set of five standard step drill bits covers a wide range of hole diameters, effectively replacing 50 individual bits. This design eliminates the hassle of switching between multiple bits, allowing you to drill various hole sizes to meet all your DIY needs.
- 【Precision-Engineered Design】The Automatic Center Punch swiftly and precisely creates positioning indentations on surfaces, ensuring accurate drilling without misalignment. The 118° split point tip enhances cutting speed and wear resistance, while the two-flute design ensures smoother cutting and efficient chip removal, making your drilling tasks easier and more precise.
- 【HSS Titanium Coating】Crafted from high-speed steel (HSS) and enhanced with a titanium coating, our drill bits deliver outstanding durability and retain sharpness, even under challenging conditions. The titanium layer boosts wear resistance, reduces friction, and ensures cooler operation.
- 【Convenient Storage Solution】This step bit set includes a specially designed holder with a size index, ensuring each bit is securely stored. The cone bits are neatly arranged in a case, making transport and storage easy while preventing them from falling out, keeping your workspace organized and clutter-free.
- 【Bonus Sanding Paper】Includes two premium sanding sheets for smoothing burrs after drilling, ensuring a clean finish on every project.
8.3Good
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