10 Best Grooved Drills Bit In The Us - Black Friday 2024
Best Choice1
LichampLichamp Jumbo 2-3/8" Unibit Step Drill Bit for Metal, Extra Large Drill Stepper Bit for Hard Metal Heavy Duty, 12 Sizes from 1/4" to 2-3/8", Spiral Grooved, C5BK
9.7 lasts a long time9.3 worth the money8.2 Simple to useWhy we love it
Versatile bit with 12 hole sizes saves time and effort.
Durable, sharp, and resistant to heat and corrosion.
Ideal for various DIY projects with smooth, clean cuts.
9.8Exceptional
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Value for Money2
VouyarVouyar 1/4 to 2 Inch HSS Step Drill Bit for Metal Sheet, 10 Sizes Extra Large Drill Stepper Bit for Sheet Aluminium, Plastic, Wood, Heavy Duty, Spiral Grooved
Main highlights- Tri-flat shank: For optimal compatibility and consistency. 1/2" (12.7mm). Fits most rotary drills like hand drills and bench drills.
- Size: 10 steps, even more versatile. A truly one-for-all solution for drilling holes on plates. Drills 1/4”, 3/8”, 19/32”, 3/4”, 1”, 1-3/16”, 1-3/8”, 1-5/8”, 1-3/4”, 2”.
- Laser engraved size mark: Easy to identify, remains visible even during drilling.
- Heavy-duty: Cuts holes on Iron sheet, Mild steel, Galvanized steel, Aluminum, Copper, Plastic, Wood, or anything that has similar or lower hardness as these materials. (Cuts upto 3mm thickness)
- Clean, smooth cuts: Features dual spiral flute design which allows fast residuals/debris removal. Fast and smooth cutting for clean holes, consistently. Improved durability.
9.7Exceptional
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3
NEIKONEIKO 10174A Quick Change Spiral Grooved Step Drill Bit | 10 Step Drill Bit Sizes in One - 1/4" to 1-3/8" | High-Speed Steel and Titanium Nitride Coating | Two-Flute Design
9.3 Precision8.7 Durability8.2 worth the moneyWhy we love it
Quality: Heavy duty long lasting.
Durable: HSS Titanium Nitride coating.
Efficient: Quick change hex shank.
9.6Exceptional
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4
Jerax toolsJerax tools 1/4 to 1-3/8 Inch Step Drill Bit Straight Grooved Double Fluted, M2 High Speed Steel Drill bits for Hole Drilling in Stainless Steel, Copper, Aluminum, Wood, Plastic
Main highlights- [Non-stop]: Our Polished Steps and Size Highlights let you able to see target hole size during drilling. No need to stop in the middle of the drilling and check. Save you time and hassle.
- [Multi Hole Sizes]: No need to buy a kit. This one step bit comes with 5 marked sizes so you can drill 5 different hole sizes, saving you time and efforts to change bits. Marked sizes including: 7/8", 1-1/8", 1-7/32", 1-1/4", 1-3/8".
- [M2 HSS]: Cuts A LOT MORE CLEAN holes and much EASIER than average step bits. In general, M2 has 50% more Tungsten and 150% more Molybdenum, both of which are key elements in improving durability. Our additional Vacuum heat treatment and Nitride surface hardening treatment make the performance even better.
- [Heavy duty]: Cuts holes on Stainless steel (need appropriate pressure), Hardened Metal, Mild steel, Galvanized steel, Aluminum, Copper, Plastic, Wood, or anything that has similar or lower hardness as these materials. Up to 12ga /2.7mm thickness for Stainless steel.
- [Easier | Faster | Cleaner]: With our high-accuracy CNC processing and several optimized design details over the years, our design cuts EASY, FAST and CLEAN, outperforming the average ones on the market.
9.3Excellent
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5
AIMLENTOOLAIMLENTOOL 3PC Step Drill Bit Set, 1/4" Hex Shank High-Speed Steel Spiral Grooved Step Drill Bit for Sheet Aluminium Metal Wood Hole Drilling, 31 Step Sizes Taper Drill bit Set for DIY Lovers
Main highlights- Wide Application: Our step drill bit can process different diameter holes, and can be used on materials such as metal heavy-duty, iron, aluminum, brass, plastic, aluminum alloy, wood, plastic, etc. Suitable for home DIY and general use.
- Quick Change: The 1/4-inch hex shank fits easily and securely into all power tools to prevent slippage and shedding during rotation.
- Precision-Engineered Design: Two-flute spiral grooved design deburrs chips, dust and debris for clearance and smooth cutting. The 118° split point tip drill reduces friction, pressure, and heat, making the drill bits long-lasting and efficient.
- HSS Titanium Coating: Our high-speed steel drill bits, fortified with a titanium coating that makes the drill bit harder than a typical HSS bit, can reduce the friction drill, and perform well in heat, corrosion, and rust resistance.
- 31 Step Sizes: 13 step drill (1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2-inch) 6 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2-inch) and 12 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8-inch)
9.2Excellent
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6
SAMXYSAMXY HSS Step Drill Bits 3 Piece Titanium Coated Spiral Grooved Step Drill Bit 1/4" Hex Shank Drill bit for Plastic, Wood, Metal Multi-Hole Taper Drill bit Set for DIY Lovers 31 Step Sizes in One Kit
Main highlights- 【Two-flute Spiral Grooved Design】The two-flute spiral grooved design deburrs chip, dust and debris for clearance and smooth cutting. With 31 step sizes, each hole made with these step bits will be precise.
- 【QUICK-CHANGE】The 1/4-inch hex shank makes for easy, convenient, and quick stepper bit switches and is compatible with impact ready power tools.
- 【Multipurpose】Perfect for home DIY, and general building/ engineering use such as drilling holes in wood,plastic, aluminum, copper,iron sheet and many other types of sheet metal.
- 【HSS Titanium Coating】HSS 4241 & high speed steel with titanium coating for strength and longevity. Coated by titanium,this step drill set performs well in heat,corrosion and rust resistance.
- 【31 Step Sizes】13 step drill (1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2-inch) 6 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2-inch) and 12 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8-inch)
9.1Excellent
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7
TEWORDA3Pcs Step Drill Bit Set, 1/4" Hex Shank High-Speed Steel Spiral Grooved Step Drill Bit, Step Bits for Metal, Wood, Plastic, Aluminium, Unibit Cone Drill Bits with 31 Step Sizes Total
Main highlights- Wide Application: With the step drill bit for metal we offer, you can machine holes of different diameters, can be used for metal wood and other materials. Suitable for home DIY and general use
- Quick Change: The 1/4 inch hex shank is compatible with impact resistant power tools and allows for quick, easy, and convenient step drill switching
- Precision-Engineered Design: Two-flute spiral grooved design deburrs chips, dust and debris for clearance and smooth cutting. The 118° split point tip drill reduces friction, pressure, and heat, making the drill bits long-lasting and efficient
- Advanced Step Drill Bit Set: Each unibit is constructed of industrial high-speed steel with a titanium nitride coating, and has proven capability and durability when drilling through plastic, wood, stainless steel, and many other types of sheet metal
- 31 Step Sizes: Each bit set comes with 3 drill bits of a combined 31 sizes to add to your drilling arsenal: 13 step drill (1/8, 5/32, 3/16, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2-inch) 6 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2-inch) and 12 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8-inch)
9.0Excellent
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8
CO-ZZELCAN HSS 5PCS Titanium Spiral Grooved Step Drill Bit Set with Automatic Center Punch, Unibit Drill Bits Set for Sheet Metal with Aluminum Case, Multiple Hole Stepped up Bits for DIY Lovers
Main highlights- Versatile Hole Processing: Our step drill bits cater to a wide range of hole diameters, effectively eliminating the hassle of switching between multiple bits. This versatility proves invaluable for tasks involving metal, wood, and plastic, including countersunk holes.
- Precision-Engineered Design: The split point tip, set at a 135-degree angle, significantly enhances wear resistance, making the drill bits long-lasting and efficient. The innovative two-flute design facilitates smoother cutting and enables easy evacuation of material particles, promoting cleaner and more precise drilling operations.
- Enhanced Durability with Titanium Coating: Our high-speed steel (HSS) drill bits, fortified with a titanium coating, offer exceptional durability and maintain sharpness even through demanding tasks. The titanium coating increases wear resistance and minimizes friction, resulting in cooler operation.
- Convenient Storage Solution: Our step bit set comes complete with a purpose-designed holder featuring a size index. This inclusion ensures effortless organization and storage, preventing the bits from falling out and keeping your workspace tidy.
- Comprehensive Set: This step drill bits set encompasses five commonly used sizes, granting you the flexibility to work with a wide array of materials and hole dimensions.
8.9Very Good
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9
CortoolCORTOOL 1/4 to 1-3/8 Inch Step Drill Bit Straight Grooved Double Fluted, M2 High Speed Steel Drill bits for Hole Drilling in Stainless Steel, Copper, Aluminum, Wood, Plastic
Main highlights- With polished steps and clearly highlighted size indicators, you can effortlessly view the desired hole size while drilling, eliminating the need to stop midway. This ensures a faster and more efficient drilling experience.
- Provides much cleaner and smoother hole cutting compared to standard step bits. M2 contains 50% more tungsten and 150% more molybdenum, which are critical for improved durability. Our advanced vacuum heat treatment and Nitride surface hardening process further enhance its overall performance.
- Leveraging precise CNC machining and years of refined design, our bit offers effortless, fast, and precise cuts, outperforming typical step bits on the market.
- Forget the need for multiple bits. This single step bit features 6 different marked hole sizes, allowing for seamless drilling across different dimensions without the hassle of changing bits. Hole sizes include: 1/4", 7/8", 1-1/8", 1-7/32", 1-1/4", and 1-3/8".
- Designed to cut through a variety of materials, including stainless steel (with proper pressure), hardened steel, mild steel, galvanized steel, aluminum, copper, plastic, and wood. It can handle stainless steel up to 12 gauge (2.7mm) thickness.
8.8Very Good
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10
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
8.6Very Good
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