Top Spiral Flute Step Drill Reviews

NEIKO 10173A Step Drill Bit Set for Metal and Wood, 5 Piece SAE, Spiral Grooved for Faster Drilling, Step Bits with 50 Total Step Sizes, Titanium Coated Unibits

PREMIUM STEP BIT: Each unibit is constructed of industrial high-speed steel with a titanium nitride coating for durability and strength to punch and drill clean holes in materials like plastic, aluminum, wood, copper, stainless steel, and other types of sheet metal..
STEP DRILL BIT FOR METAL: With a split point tip that accelerates cutting speed while preventing angled walking away from center line of bore, drilling holes in metal is fast, efficient, and clean..
SPIRAL DESIGN: The two-flute spiral grooved design deburrs chip, dust and debris for clearance and smooth cutting. With 50 step sizes combined, 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..
INCLUDES: Each bit set comes with 5 drill bits of a combined 50 sizes: Range is from 1/8” to 1-3/8”..

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Neiko 10193A Titanium Step Bits Unibit Set 28 Sizes High Speed Steel Standard SAE Step Drill Bit Set Step Bits for Metal Unibit Step Drill Bits Industrial Unibit

REPLACES 28 DRILL BITS: This set includes three standard SAE step drill bits that replace 28 individual drill bits allowing for you to spend more time working, than swapping out drill bits..
TITANIUM COATED HSS UNIBIT: Made of high-speed steel with titanium coating for added durability and bit life. Suitable to drill though plastic, aluminum, copper, stainless steel, and many other types of sheet metal..
SMOOTH DRILLING ACTION: Two-flute spiral design provides faster, smoother cutting without walking and a tri-flat shank to ensure a firm grip. Our titanium 2 step bits for metal are perfect for all your DIY, general building, and engineering tasks..
COMPLETE STEP DRILL BIT SET: Comes with one 3/16-inch to 1/2-inch six-step bit, 1/4-inch to 3/4-inch nine-step bit, and 1/8-inch to 1/2-inch 13-step bit.
STEP BIT SET CUTS AND DEBURRS: Cuts through steel, sheet metal and other surfaces with only a small amount of pressure and deburrs as you drill. Our unibit step drill bit is compatible with most drills on the market..

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ACROTOL 26 Pieces Bolt Extractor Set, Spiral Screw Extractor Set and Drill Bits, Extraction Socket Set for Removing Damaged, Rusted, Rounded Bolts, Nuts and Screws

[Specifications] 26 PCS Screw&Bolt Extractors/Drill Bit Set includes 6 easy out style spiral flute extractors, 13 PCS bolt&nut extractors, 1 PC 1/4" hex adapter and 6 PCS drill bits..
[Size] Nut&Bolt Extractor Size: 1/4inch, 5/16inch (8mm), 3/8 inch, 10mm, 7/16 inch (11mm), 12mm, 1/2inch, 13mm, 9/16inch (14mm), 5/8 inch (16mm), 17mm, 11/16 inch, 3/4 inch (19mm), included 3/8"-1/4" hex adapter. Spiral Flute Extractors Size: 1#, 2#, 3#, 4#, 5#, 6#. Drill Bits Size: 3/32", 1/8", 5/32", 1/4", 9/32", 3/8"..
[Material] Every screw & bolt extractor is made from high hardness chrome-molybdenum steel, the cobalt drill bit is made from HHS..
[Note] Cobalt drill bits should not used for stainless steel. The bolt extractor with unique plum-shaped internal thread design provides excellent torque and can be used to rotate fasteners with deep bolts..
[Function] Spiral flute extractors are perfect for common fasteners, the bolt extractors are for freeing partly-exposed fasteners. The kit also includes right hand cobalt drill bits for fasteners, which can be used to help drill these fasteners..

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OCGIG 6-65mm Large Titanium Coated Step Drill HSS Spiral Groove Cone Drill Bit Hole Cutter

Material:：High Speed Steel(HSS) with Titanium Coated.
Self starting：no need for a pilot hole.Cobalt coated to reduce friction and run at cooler temperature..
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.
Application：Suitable to cut holes in a variety of material like iron plate, aluminum plate, insulation boards, PVC sheet, ect.
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).

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DEWALT Drill Bit Set 3 Piece Titanium Nitride Coated Longer Life and Better Chip Removal DWA1790IR

Titanium Nitride Coated two flute spiral design provides longer life and better chip removal for the DEWALT drill bit set.
Split point tip of the drill bit increases speed.
Laser engraved numbers increases step visiblity.

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Thread Taps Drill, Rust Resistance Spiral Combination Tap Better Chip Removal 7Pcs/Set for Drilling(#1)

High Speed Steel: Titanium plating combination drill taps are made of high speed steel, which can ensure sharpness, fast execution and maintain strength and efficiency..
Spiral Flute Design: This is a tap drill with a spiral flute design, which has a better chip removal effect..
Processing: The tap can process wood, plastic, aluminum, tin alloy, Mg alloy, and the thickness of the workpiece is less than 5mm..
Chamfer in One : Combination of hole tapping and chamfering, convenient operation, hand drill, bench drill, and hexagonal chuck tapping machine are optional..
Improve Work Efficiency: The drill bit can quickly complete the work, which greatly saves processing steps and time costs, and improves work efficiency..

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OCGIG Large Spiral Groove Step Drill HSS Cone Bit Hole Cutter Stepped Up Unibit 6-60mm 12 Steps for Aluminium Metal Wood PVC

Material：HSS4241, High hardness, rustproof, solid and durable.
Split Point Tip：Increases cutting speed with self-centering and prevents walking.
Spiral Design：2 Flute spiral blade design makes the cutting faster and smoother, and automatically deburred from the hole when the drill bit is drilled.
Application：Suitable to cut holes in a variety of material like iron plate, aluminum plate, insulation boards, PVC sheet, ect.
Package includes：1 x 6-60mm HSS Groove Step Drill (12 Steps:6mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm).

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FTG USA Replacement Wood Countersink Drill Bit Set 3 Piece Same Size #6 9/64 Parabolic Flute Taper Point for Woodworking with Straight Shank - Tapered HSS M2 Drill Bit Only

FTG Parabolic Flute offers wider flute space, dispersing chips away from the cutting edges more rapidly and increasing coolant flow. The parabolic spiral allows chips to flow up quickly leaving less damage to be corrected after drilling. Package contains 3 Piece Same Size 9/64" (#6 screw) Replacement Tapered Drill Bit Only Without Four-cutter Countersink, made to replace the 9/64” bit of #6 Countersink FTG 6810PRB.
FTG Parabolic Flute allows chips to flow up quickly leaving less damage to be corrected after drilling. Improved chip evacuation leads to a better surface finish in the hole. The parabolic drill tip can slip-on wood surfaces.
it is recommended to hold it rigidly and drill slowly until the tip grabs the material.
Higher Quality cutters FTG Parabolic Flute drill bits are manufactured from premium High Speed Steel M2 Grade 6542. Parabolic flutes are constructed with a wider flute shape for increased chip flow.
THIRD-PARTY TESTED High Speed Steel M2 countersink drill bit for wood with tapered drill bits. FTG Parabolic Flute drill bits are premium products, they are higher quality cutters. Due to their unique design, with improved chip extraction, FTG Parabolic Flute drill bits drill holes faster than other drill models.

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CORTOOL 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

✅ 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..

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uxcell PCB Drill Bits 4mm Tungsten Carbide Spiral Flute Jewelry CNC Engraving Print Circuit Board Micro Drill Bits 1/8\ Shank

Specifications: Cutting edge diameter (CED): 4mm / 0.157".
Long Tool Life: Made from tungsten carbide, high hardness, high wear resistance, high strength, resistance to bending, anti-impairment, long service life..
Spiral Flute Bits: Spiral flute drill bits reduce cutting force and prevent drill broken, improve the drilling accuracy. Large drill bit chip space, chip resistance, chip smooth, small drilling heat..
Precision: With sharper cutting edge, milling groove and clean surface, the carbide PCB drill bits can work quickly and cleanly, no glitches or scrap left..
Applications: Great for PC boards, plastics, fiberglass, wood, soft metals. Suitable for PCB drilling machines, engraving machine, CNC and high precision special drilling equipment..

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uxcell PCB Drill Bits 3.5mm Tungsten Carbide Spiral Flute Jewelry CNC Engraving Print Circuit Board Micro Drill Bits 1/8\ Shank

Specifications: Cutting edge diameter (CED): 3.5mm / 0.138".
Long Tool Life: Made from tungsten carbide, high hardness, high wear resistance, high strength, resistance to bending, anti-impairment, long service life..
Spiral Flute Bits: Spiral flute drill bits reduce cutting force and prevent drill broken, improve the drilling accuracy. Large drill bit chip space, chip resistance, chip smooth, small drilling heat..
Precision: With sharper cutting edge, milling groove and clean surface, the carbide PCB drill bits can work quickly and cleanly, no glitches or scrap left..
Applications: Great for PC boards, plastics, fiberglass, wood, soft metals. Suitable for PCB drilling machines, engraving machine, CNC and high precision special drilling equipment..

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uxcell PCB Drill Bits 4.45mm Tungsten Carbide Spiral Flute Jewelry CNC Engraving Print Circuit Board Micro Drill Bits 1/8\ Shank

Specifications: Cutting edge diameter (CED): 4.45mm / 0.175".
Long Tool Life: Made from tungsten carbide, high hardness, high wear resistance, high strength, resistance to bending, anti-impairment, long service life..
Spiral Flute Bits: Spiral flute drill bits reduce cutting force and prevent drill broken, improve the drilling accuracy. Large drill bit chip space, chip resistance, chip smooth, small drilling heat..
Precision: With sharper cutting edge, milling groove and clean surface, the carbide PCB drill bits can work quickly and cleanly, no glitches or scrap left..
Applications: Great for PC boards, plastics, fiberglass, wood, soft metals. Suitable for PCB drilling machines, engraving machine, CNC and high precision special drilling equipment..

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CORTOOL 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

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..

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