Top 9 Unibit Step Drill Bit 1/4-1-3/8 – Drill Bits

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1. AugTouf


Aluminum, toolant Four Spiral Flute Cobalt Step Drill Bit, 1/4", 1-3/8"19 Step Size Unibit Step Bit, Plastic, Wood, 3/8" Shank Unibit Step Drill Bit for Metal, Stainless Steel

AugTouf #ad - Four spiral flute - four cutting blades design guarantees a faster and smoother cutting. Dimension - includes from 7/8" to 1-3/8". M35 cobalt hss step drill - prefect for Stainless Steel/Metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets. 3/8" shank - Eliminate slipping. Feels like a hot knife through butter! Tialn coating- with 89hrc surface hardness, harder materials can be cut and higher cutting speeds can be achieved. Popular size 7/8“, 1-1/8", 1-3/8" labeled.
BrandAugTouf #ad
ManufacturerAugTouf #ad
Part NumberAU0580004

2. Cortool


3/16"-7/8", HSS Drill Bit Set Total 23 Sizes 1/4"-1-3/8", Heavy Duty Step Bit, CORTOOL Titanium High Speed Steel Step Drill Bit Set, Unibit Step Drill Bit, Step Drill Bit for Metal, Step Drill Bit

Cortool #ad - Perfect for home repairs and light jobs such as drilling holes in plastic, copper, aluminum, iron sheet and many other types of sheet metal excluding steel or any other harder metal.

Your customer satisfaction and 30-day warranty of step drill bit can be guaranteed. Increases cutting Speed With Self-Centering And Prevents Walking. Two-fluted design provides faster, smoother cutting, provided with small pressure and the sets. The 3-flat shank titanium drill uses a doubleedged design to make cutting smoother and smoother;Increases cutting speed with self-centering and prevents walking. Cortool step drill bits are made of 100% genuine hss 4241 steel, please be cautious of cheap substitues of low quality. Classic high speed steel with titanium coating For Proven Capability and Durability.
BrandCortool #ad
ManufacturerCortool #ad
Height1.97 Inches
Length3.94 Inches
Width3.94 Inches
Part Number13000002-13000006-13070003

3. CO-Z


CO-Z Step Drill Bits, Multiple Hole Stepped Up Bits for DIY Lovers, 50 Sizes in 5 High Speed Steel Unibit Drill Bits Set for Sheet Metal with Aluminum Case, HSS 5PCS Titanium Step Drill Bit Set

CO-Z #ad - The board must be smaller in thickness than the height of step drill bits. Extreme durability: cobalt high speed steel drill bits along with the titanium coating ensures extreme durability, will stay new and shiny for years to come.

Chuck sizes. Different sizes of holes can be drilled: different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. Use center punch to mark the spot: Please mark the spot that you are to drill for easier drilling and improved drill bits life. You are capable to drill holes in different sizes which can meet your normal needs. Smooth drilling: non-walking drill tip provides fast and smooth drills on steel sheets, wood board, aluminum sheets, plastic board etc. Keep your step drill bits well Organized: All the bits come in a well-organized case for easy transport and storage.
BrandCO-Z #ad
ManufacturerCO-Z #ad
Height6.1 Inches
Length4.33 Inches
Weight1.15 Pounds
Width1.57 Inches
Part NumberCO-Z SDB-0000
ModelCO-Z SDB-0000



Hymnorq Metric Titanium Coated HSS Spiral Groove Step Drill Bit Set of 3pcs 4-12/4-20/4-32mm with 1/4" Hex Shank Packed in Reusable Case for Cutting Holes in Iron Plate Aluminum Plate, etc.

HYMNORQ #ad - Self-starting, no need of center punch. Ideal for use in electrical work where thin steel, aluminum or plastic boxes and chassis are encountered. Automatically deburrs holes left by other bits, as the sharp increase to the next step size allows the cutting edge to scrape burrs off the entry surface of the workpiece.

Conical bit with a stairstep profile to be used for drilling 19 hole sizes ranging from 4-32mm, to replace 19 individual drill bits. The short length of the unibit and ability to vary the diameter of the finished hole is an advantage in chassis or front panel work.

Commonly used on sheet metal and in general construction. The finished hole can often be made quite smooth and burr-free, especially in plastic. Made of high quality hss high-speed steel 4241 and coated with Titanium for prolonged life. Save you time and effort. One drill bit can drill the entire range of holes necessary on a countertop, speeding up installation of fixtures.
BrandHYMNORQ #ad
ManufacturerHymnorq #ad
Part NumberDC015

5. Neiko


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

Neiko #ad - 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. Our titanium 2 step bits for metal are perfect for all your DIY, and engineering tasks.

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.

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. Smooth drilling action: two-flute spiral design provides faster, general building, smoother cutting without walking and a tri-flat shank to ensure a firm grip. Our unibit step drill bit is compatible with most drills on the market.
BrandNeiko #ad
ManufacturerRidgerock Tools Inc. #ad
Height1 Inches
Length6 Inches
Weight0.02 Pounds
Width4 Inches
Part Number10193A

6. amoolo


Multiple Hole Drilling Cone Drill Bit, amoolo Titanium Step Drill Bit 15 Step, Plastic, 3/16" to 1-1/4" 1.25 inch High Speed Steel HSS 1/4" Hex Shank Unibit for Soft Metal Sheet, Wood

amoolo #ad - Titanium | high speed steel - industrial grade high speed steel ensures excellent durability and strong wear-resistance. The titanium coating reduces friction and cools faster, giving longer using life.

One bit with multiple drill sizes - 15 step:includes 3/16", 30, 1-1/4" 4, 11/16", 8, 28, 1-3/16", 18, 10, 24, 20, 26, 5/8", 16, 1/2", 22, 9/16", 12, 5/16", 13/16", 15/16", 1", 14, 7/8", 3/8", 1/4", 1-1/8", 6, 32mm. Double-flute design - Double cutting blades design guarantees a faster and smoother cutting, allows particles escape easily. Prefect for soft metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets.

1/4" hex-shank quick change - fits into most pistol drill and drill press securely without slippage when drilling new holes or enlarging existing holes. Free to get a portable tin box to prevent rust. Suitable for home DIY, General Building and Engineering Use. 118° x-type split point - Requires less pressure with self-centering and prevents walking.
Brandamoolo #ad
Manufactureramoolo #ad
Weight0.38 Pounds
Part NumberAST1909-15STP

7. Luckyway


Luckyway 1-Piece 15 Steps HSS-COM35 1/4 Inch to 1-3/8 Inch Titanium Step Drill Bit for Metal, Stainless Steel Drilling

Luckyway #ad - Material - hss-com35for longer life, higher efficiency, very easy drilling. Service life: m35>M2>HSS4241. Two-flute design: Clears chips faster and allows particles to escape easily.

Application - capability and durability in drilling holes in plastic, stainless steel, copper, HRC40 steel plate and many other types of sheet metal. If used in 4mm stainless steel plate, aluminum, can make more than 500 holes. It can be used to bore holes in steel plates up to HRC40 . Dimensions - 15 step sizes: 1/4", 15/16", 1-3/16", 1/2", 9/16", 1-1/4", 5/8", 7/16", 1", 7/8", 3/8", 1-1/8", 5/16", 3/4", 1-3/8". Features - 135° split point tip: increases cutting speed with self-centering and prevents walking.
BrandLuckyway #ad
ManufacturerZhenjiang Luckyway Tools Co.,Ltd #ad
Part NumberT000185152A

8. Yangoutool


Step Drill,Yangoutool High Speed Steel Step Drill 10 Steps from 1/4-1-3/8 Inches with Safe Plastic Case

Yangoutool #ad - Hss titanium coating: Made of high speed steel and titanium coated for added durability and bit life. Includes 10 step sizes:1/4", 1/2", 1-1/4", 7/8", 5/8", 1", 3/4", 3/8", 1-1/8", 1-3/8". Wide application:works on plastic, brass, wood and most metals, including steel, aluminum and copper. Two-flute design: Clears chips faster and allows particles to escape easily. Safety and stability: the 3 flat shank is better clamped on the pistol drill to prevent slippage and shedding during the rotation.
BrandYangoutool #ad
ManufacturerYongbiao Import&Export Co.LTD #ad
Height1.6 Inches
Length6.1 Inches
Weight0.32 ounces
Width2.9 Inches

9. Milwaukee


9 Hole Steps, 1/16" D Step, 1/4-3/4 Hole", 3/8" 3-Flat Shank, 2 Flutes, Milwaukee Electric Tool 48-89-9203 Step Drill Bit, 3

Milwaukee #ad - 3 step bit. Made in the USA. Delivers up to 50% more holes per battery charge. No. Optimized for use in cordless drills in the high speed setting. Design reduces bit slippage in the chuck.
BrandMilwaukee #ad
Height6.9 Inches
Length1.8 Inches
Weight0.19 Pounds
Width5.9 Inches
Part Number48-89-9203