4PCS High Speed Steel Spiral Flute Step Drill Bits Set With 1PC Center Punch

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4PCS High Speed Steel Spiral Flute Step Drill Bits Set With 1PC Center Punch Technical Specifications
【Package】4-Piece: 3 HSS Groove Step Drill Bit (4-12/ 4-20/ 4-32mm) + 1 Automatic Center Punch.
【Wide Application】Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron sheet and many other types of sheet metal (excluding steel or any other harder metal.
【Easy Drilling】Two-fluted design provides faster, smoother cutting, provided with small pressure and the sets. Stepped grooves prevent slippage in the chuck.

TITANIUM COATED & HIGH SPEED STEEL – Heat-treated for superior hardness, wear resistance, and heat dissipation; cuts smoothly through stainless steel, aluminum, plastic, and thin metal
MULTI-SIZE STEPPED DESIGN – One bit replaces multiple drill bits; drills various hole sizes in one pass, eliminating frequent bit changes and saving time on the job
1/4″ QUICK-CHANGE HEX SHANK – Universal fit for most drills, impact drivers, and electric screwdrivers; stable, non-slip, and tool-free installation for fast workflow
SELF-CENTERING & SMOOTH CUTTING – Precision ground flutes ensure stable positioning, fast chip removal, and clean holes without wobbling, burring, or breaking
WIDE APPLICATION – Ideal for sheet metal fabrication, electrical work, plumbing, furniture assembly, automotive repair, and home DIY projects
High speed steel along with titanium coating ensures outstanding durability andsharpness, can reduces the frictionand drills with lessheat , runs cooler.
Perfect for home DIY, and generalbuilding/ engineering use such as drilling holes in wood,plastic, aluminum, copper,iron sheet and many other types of sheet metal.

Step drills are designed for drilling repetitive holes in steel, stainless steel, copper, brass, aluminium, plastic, plexiglas, laminates and many other thin materials.
Manufactured from premium quality high speed steel with double fluted ground cutting edges for long service life.
No pilot hole required.
Easy to sharpen.
Stepless drilling in the thinnest sheets.
Burr-free drilling without sheet deformation.
Automatic deburring.
Spiral flutes enable easier tool penetration.

HSS Titanium Step Drill Bits | 3/16″ to 1/2″, 1/8″ to 1/2″, 1/4″ to 3/4″ | 1/4″ Hex Shank for Stainless Steel, Aluminum, Wood, Plastic & Sheet Metal
Replace dozens of standard twist bits with just three step drill bits. This 3-piece set allows you to drill multiple hole sizes without changing bits – 6 steps, 13 steps, and 9 steps covering sizes from 1/8″ up to 3/4″. The self-starting split point eliminates the need for center punching, while the Titanium coating reduces friction and extends bit life. Perfect for electrical work, automotive repair, HVAC installation, and DIY projects.

Why Choose This Step Drill Bit Set?
HSS Titanium Coating – Longer Life, Faster Cutting
Crafted from high-speed steel (HSS) with a titanium coating that reduces friction and heat buildup. The coating provides exceptional hardness and wear resistance, extending bit life up to 3-5 times longer than uncoated bits. Cuts through stainless steel, aluminum, sheet metal, wood, and plastic with ease. 1/4″ Hex Shank Stepped Drill Bits for Stainless Steel, Aluminum, Wood, Plastic & Sheet Metal

Self-Starting Split Point – No Center Punch Needed
The precision-ground split-point tip provides self-centering action, preventing wandering and ensuring the bit starts exactly where you want it. Eliminates the need for center punching or pre-drilling. Reduces pressure required to start the cut, making operation easier and more controlled.

1/4″ Quick-Change Hex Shank – Universal Compatibility
Features a standard 1/4-inch hex shank, compatible with most cordless drills, impact drivers, and electric screwdrivers. The hex design prevents slipping in the chuck and allows for tool-free bit changes in seconds. Impact-rated for use with impact drivers.  3 PCS HSS Titanium Step Drill Bits Kit 3/16″, 1/2″, 1/4″

What’s Included – 3-Piece Complete Set
This set includes three step drill bits covering different size ranges for various applications:

Bit #1 3/16″ to 1/2″—6 steps
3/16″, 1/4″, 5/16″, 3/8″, 7/16″, 1/2″
Bit #21/8″ to 1/2″—13 steps
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″
Bit #31/4″ to 3/4″—9 steps
1/4″, 5/16″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″
Pro Tip: Use Bit #1 for precision work (3/16″-1/2″), Bit #2 for fine-step general drilling (1/8″-1/2″), and Bit #3 for larger holes up to 3/4″. 3PCS Bits High Speed Steel Titanium Coated Step Drill Set Straight Flute

How to Use – Get Professional Results Perfect for Every Job Site
Pro Tips:

Use low speed (300-500 RPM) for metal – Apply cutting oil to reduce heat and extend bit life
Use medium speed (800-1500 RPM) for wood and plastic – Apply steady, even pressure without forcing
For stainless steel – Use slow speed and cutting oil; let the tool do the work
Clear chips periodically – Remove debris from steps during extended cuts to prevent clogging
The step design automatically deburrs – No need for a separate deburring tool  2PC High Speed Steel Titanium Nitride Coating Step Drill Bits Set
Match bit to hole size – Use Bit #1 for 3/16″-1/2″, Bit #2 for 1/8″-1/2″ fine steps, Bit #3 for up to 3/4″