Step Drill 4 20 Metals of 2025
Best Choice1
LepoHomeStep Drill Bit Set, 3Pcs Spiral Groove Titanium Coated High Speed Steel Unibit Cone Hole Cutter Bit with Automatic Center Punch for Drilling Plate Aluminum Metal Wood Hole (4-12mm/4-20mm/4-32mm)
Main highlights- 【Widely Used】Perfect Step Drill Bits suitable for drill holes in various material： within 3mm/0.12 inch (Iron Plate, Copper Plate, Aluminum Plate); within 5mm/0.2 inch (Wood, PVC sheet, Insulation Boards). Not suitable for hard and brittle materials such as stainless steel, glass, tile floors, walls etc.
- 【SET INCLUDES】Bit #1 (9 steps): 4-12mm (4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm,12mm); Bit #2 (9 steps): 4-20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm); Bit #3 (15 steps): 4-32mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm,30mm,32mm)
- 【Package Included】 3-Piece HSS Sprial Groove Step Drill Bit (4-12/ 4-20/ 4-32mm ) + 1 Automatic Center Punch. 1/4" Hex shaft drives are suitable for all kinds of for home DIY power drills.
- 【Material】HSS combined with a titanium coating. More capable and sturdy. Coated by titanium,this step drill set performs well in heat,corrosion and rust resistance.
- 【Easy Drilling】Two-Flute Design for smoother cutting. High Step design let you feel the stop and never drill bigger in mistake
9.6Exceptional
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Value for Money2
LepoHomeStep Drill Bit Set, 3 Pieces Titanium Coated High Speed Steel Unibit Cone Drill Bit Kit for Plastic, Wood, Metal Sheet, Aluminum Hole Drilling Stepped Driil Bit (Metric 4-12mm/4-20mm/4-32mm)
Why we love it
Durable titanium-coated high-speed steel.
Versatile for multiple materials.
Smooth and fast drilling.
9.5Excellent
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3
TworiderTworider 3pcs Metric Step Drill Bit, Hss Step Drill Bit Set High Speed Steel Step Bits Set (Metric 4-12mm, 4-20mm and 4-32 Mm) Cone Metal Drill Bits for Plastic, Wood, Stainless Steel Sheet Metal
Main highlights- 【widely used】：The ability and durability of high-speed steel with titanium coating to drill holes in plastic, aluminum, copper and many other types of metal plates have been proved. Titanium drill bits are especially suitable for processing copper and aluminum parts, die steel, cast iron, iron and other metal materials.
- 【Sizes】： 15 Step Bit: 4-32mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm) 9 Step Bit: 4-20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm) 5 Step Bit: 4-12mm (4mm, 6mm, 8mm, 10mm, 12mm)
- 【Quick Assemble】: 1/4" hex shank work with most drill or drills with 1/4" chuck,makes for easy, convenient, and quick stepper bit switches and is compatible with impact ready power tools.
- 【Drill Bit Set contain 3 size】：4-12mm, 4-20mm and 4-32 mm, Supplied with a portable fabric bag.
- 【Double groove design】：Provide faster and smoother drilling, provide less pressure, and cut wood, plastic and other surfaces with a thickness of less than 5mm. The stepped cone drill is designed to accurately drill holes of different sizes from 4 mm to 32 mm in diameter, with the best speed
9.2Excellent
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4
uxcelluxcell Step Drill Bit HSS 4241 4mm to 20mm 9 Sizes Titanium Coated Straight Flutes Hex Shank for Metal Wood Plastic
Main highlights- This step drill bit is durable and strong enough to punch and drill clean holes in materials like metal, wood, etc.. It can also help to enlarge existing holes and clean edges.
- Suitable for hand-held drilling rigs, drilling machines, milling machines and machining centers, for metal sheet, maintenance and modification, bridge doors and windows, home appliances, etc..
- Shank Type: 6mm Hex Shank; Material: HSS 4241 with Titanium Coated; Drilling Diameters: 4mm/0.16", 6mm/0.24", 8mm/0.3", 10mm/0.4",12mm/0.47", 14mm/0.55", 16mm/0.6", 18mm/0.7", 20mm/0.8".
- Note: High temperature will affect the working life, please use coolant while drilling on metals to ensure the drill bit working properly. Please keep it properly preserved. Avoid falling the bits from high place.
- It is Great for drilling holes for iron, metal, aluminum, copper, wood, plastic, PVC board and many other types of sheets.
9.1Excellent
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5
ZhushanMetric Step Drill Set,Zhushan 3Pcs High-Speed Steel Shank Titanium Step Drill Bits for Sheet Metal Hole Drilling from 4-12mm/4-20mm/4-32mm
Main highlights- Works great in making a smooth, clean and perfectly round hole
- Two-fluted design provides faster, smoother cutting;Provided with small pressure and the sets can cut through wood, sheet metal, steel and other surfaces
- Ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc
- HSS steel large step cone drill titanium bit set hole cutter, which is made from high quality HSS steel, and with the Titanium coated to reduce friction and heat
- 3 Sets Step Drill: With 3 sets 5 stage + 9 stage + 15 stage step drill, you can drill different sizes from small holes to big holes
9.0Excellent
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6
ChargenyangChargenyang 3 Pcs Straight Grooved Step Drill Bit Set, High Step Steel Titanium Drill Bits Set Power Tools 4-12/4-20/4-32mm Hex Shank Drive, HSS Cut Tool Set for Metal Wood Steel DIY Plastic
Main highlights- 5. Suitable for sheet metal, sink, car repair, etc. Widely used to cut holes in a variety of material like plate, aluminum, insulation board, PVC board, the thickness. Suitable for workpieces with a thickness of 5mm or less, such as wooden boards, plastic boards, etc. Suitable for workpieces with a thickness of 2mm or less, such as lron, Aluminum, Normal Steel, etc.
- 4. Titanium coated to reduce mit and heat. Heat treated and highly polished. Drills perfectly round holes in steel, brass, plastic, wood etc.
- 3. 3pcs/set Hss Drill Bit Set, quality tool for jobs of all sizes, hex shank work with most drill or drills with 1/4" chuck , fits into power tools chuck securely and eliminates slip.
- 2. 6 sided shanks design in order to prevent slippage when in chuck. Two flute design drives faster, smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps.
- 1. Made from high quality HSS steel, ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc.
8.9Very Good
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7
LepoHome4-20mm HSS Step Drill Bit, 1/4" Hex Shank Quick Change Titanium Coated High Speed Steel Cone Drill Bit for Plastic, Wood, Metal Sheet, Aluminum Hole Drilling
Main highlights- 【Widely Used】Perfect Step Drill Bits suitable for drill holes in various material： within 3mm/0.12 inch (Iron Plate, Copper Plate, Aluminum Plate); within 5mm/0.2 inch (Wood, PVC sheet, Insulation Boards). Not suitable for hard and brittle materials such as stainless steel, glass, tile floors, walls etc.
- 【Package Included】1PCS HSS Groove Step Drill Bit 4-20mm. 1/4" Hex shaft drives are suitable for all kinds of for home DIY power drills.
- 【Metric HSS Step Drill Bit Size】4-20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm) for your drilling size.
- 【Material】Made of high speed steel with titanium coating, ensure our step drills’ Durability. This also proves the capability and durability of the drill to last through multiple drillings on surfaces such as: plastic, aluminum, copper, stainless steel, and so much more.
- 【Easy Drilling】118° X-TYPE SPLIT POINT and Two-fluted provide small pressure and make your drilling faster and smoother, a step drill can be used in a variety of hole sizes.High-step design allows you to stop and won’t drill big!
8.8Very Good
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8
PEAKTRENDPEAKTREND 3 Pcs Straight Grooved Step Drill Bit Set, High-Speed Steel Shank Titanium Step Drill Bits Set Hex Shank Drive, HSS Cut Tool for Metal Wood Steel Hole Drilling 4-12mm/4-20mm/4-32mm
Main highlights- Titanium coated to reduce mit and heat. Heat treated and highly polished. Drills perfectly round holes in steel, brass, plastic, wood etc.
- Suitable for sheet metal, sink, car repair, etc. Widely used to cut holes in a variety of material like plate, aluminum, insulation board, PVC board, the thickness. Suitable for workpieces with a thickness of 5mm or less, such as wooden boards, plastic boards, etc. Suitable for workpieces with a thickness of 2mm or less, such as lron, Aluminum, Normal Steel, etc.
- Made from high quality HSS steel, ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc.
- 6 sided shanks design in order to prevent slippage when in chuck. Two flute design drives faster, smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps.
- 3pcs/set Hss Drill Bit Set, quality tool for jobs of all sizes, hex shank work with most drill or drills with 1/4" chuck , fits into power tools chuck securely and eliminates slip.
8.7Very Good
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9
LDEXINLDEXIN Step Drill Bit 1/8" to 3/4" High Speed Steel Step Drill Cone Bits for Metal, Heavy Duty Step Bit, Tri-Flat Shank (4mm - 20mm)
Main highlights- Wide Range of Applications: Our step drill is versatile and suitable for cutting non-ferrous metals, plastic, and more. It is an excellent choice for sheet metal working, whether you're a professional or a DIY enthusiast. Please note that it is not recommended for use with harder metals like steel.
- Service Guarantee: LDEXIN guarantees high quality and good service. If you are not satisfied, we will offer 30-day return service no questions asked. Because we want you to be happy!
- High-Quality HSS Material: Our step drill bits are made of high-speed steel (HSS) with a titanium coating, ensuring exceptional durability, heat resistance, and corrosion prevention. These bits can easily cut through various materials such as iron sheets, aluminum sheets, copper, plastic, and wood boards.
- Efficient and Precise Drilling: The 118° split point angle reduces friction, pressure, and heat, allowing for effortless centering in the material. The double flute straight design ensures dependable performance and durability. Additionally, the tri-flatted shank prevents slippage in the drill chuck.
- Convenient 9-Step Sizes: With clear size marks on the cutting head, our step drill offers 9-step sizes ranging from 4mm to 20mm. This feature saves you time during drilling by providing high-visibility primary hole sizes for precise and efficient work.
8.6Very Good
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10
FongmoreFongmore 3Pcs 1/4" Hex Shank Drive Quick Change High Speed Steel Titanium Step Drill Bit Short Length Drill Bits for Hole Drilling 3-12mm 4-12mm 4-20mm
Main highlights- Work as tapered drill bit, step up bit, step drill bit, step bit, step drill bits for metal, step drill, step drill bit set, step drill bits.
- Widely Application: Ideal for drilling holes in plastic, aluminum, iron and many other types of sheet metal (Not recommended for stainless steel or any other harder metal).
- Quick change 1/4-inch hex shank makes for easy, convenient bit switches and is compatible with impact ready power tools.
- HSS Titanium Coating: The step drill has excellent sharpness and durability due to its high speed steel material and titanium coating.
- 5 step drill bit: 4-12 mm (4 mm, 6 mm, 8 mm, 10 mm, 12 mm) 9 step drill bit: 4-20 mm (4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm ) 10 step drill bit: 3-12 mm (3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm)
8.3Good
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