Groove Hss Step Drill Bits of 2025
Best Choice1
Clicked 20 times in the last month1WANYUEM35 Cobalt HSS Step Drill Bits, Four Spiral Flute Cobalt Step Drill Bit,1/8"-7/8"(3PCS) Hex Shank Unibit for Aluminum, Stainless Steel, Metal, Wood, Plastic.
Main highlights- TiAlN: TiAlN coating is a new coating material in recent two years. It has high hardness, high oxidation temperature, good thermal hardness, strong adhesion, low friction coefficient and low thermal conductivity coefficient
- M35 Cobalt High Speed Steel: M35 cobalt high speed steel can be obtained by proper heat treatment with high hardness , high red hardness and high wear resistance. Its toughness and bending strength are higher than that of ordinary high-speed steel, which is better for hard materials
- Four groove step drill: The ordinary step drill is easy to flex during the cutting process, but the four groove step drill is more stable in the cutting. The service life is twice that of ordinary ladder drills, the drilling accuracy is significantly improved, the cutting speed is faster when drilling, and it has a unique effect on stainless steel drilling
- After sale: If you are not fully satisfied for any reason, please contact us,We will provide you with Worry-free after-sales service
- 135 °cutting angle: The increased angle of the drill tip is more suitable for drilling hard materials than 118 °. The larger the angle is, the smaller the self-wear is and the bigger the stress area is. Tip - The temperature of the drill will increase due to high speed rotation. It is suggested to add cutting oil or spray water to cool the drill during continuous operation, which can effectively prolong the service life of the ladder drill. If the product has any quality problems
9.8Exceptional
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Value for Money2
ZELCANZELCAN Large HSS Spiral Groove Step Drill Bit, 12 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
Main highlights- Universal Compatibility ----- 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.
- One Bit for All ----- The bit comes with 12 hole sizes: 6mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm. , saving you time and efforts to change bits, quadrupling your drilling efficiency compared to competition.
- Larger Size ----- Our drill bit is bigger in size so it can drill holes with larger dimensions.
- Jam-Free Performance ----- The dual-flute design prevents metal fillings from flying around and clears chips faster thus it can drill more smoothly without heating up.
- Durable Titanium Coated Bits ----- 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.
9.7Exceptional
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3
AIMLENTOOLAIMLENTOOL HSS Spiral Groove Step Drill Bit, 12 Steps High-Speed Steel 1/4" to 2-3/8" Drill Bit for Stainless Steel, Aluminum, Plastic, and Wood, Large Multiple Hole Stepped Bit
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.
- Professional After-Sales Service: If you are not fully satisfied with our product for any reason, please contact us for a 100% refund or replacement.
- 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.
9.5Excellent
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4
CortoolCORTOOL 2-Inch HSS Spiral Groove Step Drill Bit, 10 Sizes Cobalt Added High Speed Steel 1/4" to 2" Drill Bit for Sheet Aluminium Metal Wood, Big Multiple Hole Stepped Up Bit for DIY Lovers
Main highlights- 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 cobalt coating makes the drill bit more durable so that it can last for years with uncompromised quality.
- The spiral 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.
- CORTOOL drill bit is bigger in size so it can drill holes with larger dimensions.
- 10 hole sizes: 1/4; 3/8; 19/32; 3/4; 1'; 1'3/16; 1'3/8; 1'5/8; 1'3/4; 2'.
9.4Excellent
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5
NordWolfNordWolf HSS Titanium SAE Step Drill Bit, Spiral Groove Double Flute Multiple Hole Unibit for Sheet Metal, 10 Imperial Step Sizes 1/4" to 1-3/8"
Main highlights- 【Popular Sizes】Includes 10 steps imperial drilling sizes: 1/4", 3/8", 1/2", 5/8, 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8" inches. Laser marking of step size provide convenience and accurate drilling
- 【Integrated Hex Shank】One piece 1/4-inch quick change hex shank to easily and securely fit into standard drills, drill presses and impact drivers
- 【High Quality】HSS Titanium Nitride coated heavy duty step drill for better toughness, wear resistance and long lifetime, precision ground for accurate drilling for various materials such as sheet Aluminum, metal and iron (up to 0.2" thickness), copper, acrylic, PVC
- 【Enhanced Performance】135° Split point drill tip for faster self-centering without walking, special multi cutting edges on drill tip cut long chips to remove chips smoothly, reduce heat while drilling, increase drilling speed and extend lifetime
- 【Efficient Design】Spiral groove, double flute design allows easy chips removal as well as deburring holes clean for faster and smoother drilling performance
9.2Excellent
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6
VearterVearter HSS Straight Groove Step Drill Bits, 3/16" - 1/2" Unibit 6 Steps M2 Material Titanium Coated Hex Shank for Drilling Holes in Stainless Steel Aluminium Sheet Metal Wood Plastic PVC
Main highlights- Safe Use - The hex shank enhances safety and stability by securely fastening the step drill bit to power drivers, drills, and press drills, preventing any instances of falling off or slipping during rotation.
- Revolutionary Design - The dual groove design offers a smoother cut and faster chip evacuation, effectively removing burr chips, dust, and other debris. This design helps prevent chips from flying and enables smoother drilling without heating.
- Easy Cut - The titanium coating on the step drill bit enhances its sharpness and reduces heat generated by friction, allowing for easy cutting of iron sheets, aluminum sheets, copper, plastic, wood boards, and various other types of sheet metal.
- Durable HSS Drill Bit - The HSS M2(6542) step drill bit has excellent durability and high-speed punching capabilities. Its industrial-grade high-speed steel material allows it to outlast others.
- 6 Step Sizes - Step drill bits for metal compatible with 6 Sizes: 3/16'', 1/4'', 5/16'', 3/8'', 7/16'', 1/2''. Meet your different needs, greatly save you the trouble of choosing different step bit.
9.0Excellent
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7
CortoolCORTOOL Step Drill Bit HSS Spiral Groove Step Bit 1/4" to 2-3/8" Step Drill Bit for Metal Plastic Wood, 12 Sizes Multiple Hole Stepped Up Bit for DIY Lovers
Main highlights- 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 spiral 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.
- CORTOOL 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
8.9Very Good
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8
OCGIGOCGIG 6-65mm Large Titanium Coated Step Drill HSS Spiral Groove Cone Drill Bit Hole Cutter
Main highlights- Spiral Design：3 Flute spiral blade design makes the cutting faster and smoother, and automatically deburred from the hole when the drill bit is drilled
- Self starting：no need for a pilot hole.Cobalt coated to reduce friction and run at cooler temperature.
- Package includes：1 x 6-65mm HSS Groove Step Drill (13 Steps:6mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, 65mm)
- Material:：High Speed Steel(HSS) with Titanium Coated
- Application：Suitable to cut holes in a variety of material like iron plate, aluminum plate, insulation boards, PVC sheet, ect
8.8Very Good
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9
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
8.5Good
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10
LSLANSOON6-60mm Step Drill Bit, 12.5mm/0.5” Shank 4241 HSS Spiral Groove Drill Bit for Wood, Plastic, Sheet Metal
Main highlights- 【Sturdy & Durable】Made of 4241 high speed steel with Spiral Groove design, the step drill bit is not easily broken compared to regular twist drill bits
- 【Storage】Package also includes a storage case for storing the drill bit while not in use
- 【Step Drill Bit】One drill bit for drilling multiple hole sizes from 6 to 60mm (1/4” to 2-1/3”)
- 【Recommended Rotation Speed】250-400 RPM for prolonged use
- 【Easy to Use】Automatically deburr holes while drilling to keep the drill bit clean
- 【Application】Suitable for drilling acrylic, PVC, wood, aluminum and iron sheets up to 5mm (0.2”) in thickness. Ideal For DIY, home and construction work
8.4Good
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