1/4 Inch Hex Shank HSS M35 Cobalt Plated Step Drill Bit 3-13mm Spiral Flute with ABS Plastic Case

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1/4 Inch Hex Shank HSS M35 Cobalt Plated Step Drill Bit 3-13mm Spiral Flute with ABS Plastic Case Technical Specifications
Made of M35 steel, hard, wearproof and durable.
1/4 Inch Hexagon shank: Ensure that the tool concentricity.
Unique step structure make it possible to open various size of holes.
Plated cobalt coating, a substantial increase in the wear resistance and oxidation resistance.

HSS & Titanium Coating – High speed steel makes it last longer than others, titanium coating ensures easily cut through steel sheets, aluminum sheets, copper & plastic & wood board and many other types of sheet metal with ease.
It can automatically deburr holes while drilling to keep the drill bit clean.
Good Design – Hex Shank fits into power tools chuck securely and eliminates slip; two-flute design clears chips faster and allows particles to escape easily.

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. OEM HSS Titanium Step Drill Bits 3/16″ to 1/2″, 1/8″ to 1/2″, 1/4″ to 3/4″

Why Choose This Step Drill Bit Set?
HSS Titanium Coating – Longer Life, Faster Cutting 3-13mm Hex Shank Step Drill Bit With 11 Steps For Metal Drilling
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. Straight Flute 4-42mm HSS4241 Step Drill Bit For Electric Hand Drill

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 Piece HSS Groove Step Drill Bits Set (4-12/ 4-20/ 4-32mm) + 1 Piece Automatic Center Punch
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  HSS4241 Titanium Coated Step Drill Bits With Hex Shank
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 Cobalt Step Drill Bit
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″