Step Drill Bits
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Century Drill & Tool®HSS Fractional Step Drill BitHSS Fractional Step Drill Bit by Century Drill & Tool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...Century step drills are for cutting in ferrous and non-ferrous metals, plastics and wood up to 1/8" thickDouble flute design reduces chatter and deburrs holes$20.09 - $41.08 - Install Bay®Unibit Fractional Step Drill BitUnibit Fractional Step Drill Bit by Install Bay®. Single Fluted Design Eliminates Skidding And Makes For Easier Resharpening. Also Features Laser Etched Hole Sizes And Anti Skid Tip. Works With Most Metals.Designed to help to get your job done rightManufactured utilizing the highest quality materials$76.99 - $130.99
- IRWIN®Unibit™ Cobalt Fractional Step Drill BitUnibit™ Cobalt Fractional Step Drill Bit by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are perfect for use in mild...6X Longer life vs. the competitionM35 grade Cobalt HSS$30.11 - $88.70
- IRWIN®Unibit™ HSS Self-Starting Fractional Step Drill BitUnibit™ HSS Self-Starting Fractional Step Drill Bit by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are perfect for use...Single-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuck$22.33 - $79.15
- IRWIN®Unibit™ Titanium Fractional Step Drill BitUnibit™ Titanium Fractional Step Drill Bit by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are perfect for use in mild...Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminatesSingle-flute cutting edge for greater control through steps$36.45 - $99.27
- IRWIN®Unibit™ HSS Fractional Step Drill BitUnibit™ HSS Fractional Step Drill Bit by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are perfect for use in mild steel,...Single-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuck$36.33 - $90.92
- IRWIN®Unibit™ HSS Metric Step Drill BitUnibit™ HSS Metric Step Drill Bit by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are perfect for use in mild steel,...Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminatesSingle-flute cutting edge for greater control through steps$20.81 - $124.62
- Makita®HSS Fractional Step Drill BitHSS Fractional Step Drill Bit by Makita®. Makita Step Drill Bit is manufactured from high speed steel for longer life. Step Bit efficiently enlarges and deburs holes. 1/4" hex shank for convenient use with both Impact Drivers and...Ideal for knockouts in electrical junction boxes and cabinetsConvenient 1/4" hex shank for quick bit changes with Impact Drivers$32.69 - $69.29
- ATD®5-piece Step Drill Bit Set (9200)5-piece Step Drill Bit Set by ATD®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind, this product by ATD® will last a lifetime. It...#4241 High Speed Steel is perfect for drilling holes in thin mild steel, aluminum, copper, brass, plexiglass, wood and laminatesTwo flutes design for true round holes and automatically deburrs as you drill$50.56
- AllStar Performance®2-piece Gold Oxide Step Drill Bit Set (ALL11041)2-piece Gold Oxide Step Drill Bit Set by AllStar Performance®. Drill multiple size holes with one bit. Drill sheet metal and aluminum without deforming or distorting. Bits start on contact, deburr and chamfer while drilling and do not...Precise manufacturing and high-grade materialsExceptional performance at a competitive price$37.99
- AllStar Performance®3-piece Gold Oxide Step Drill Bit Set (ALL11040)3-piece Gold Oxide Step Drill Bit Set by AllStar Performance®. Drill multiple size holes with one bit. Drill sheet metal and aluminum without deforming or distorting. Bits start on contact, deburr and chamfer while drilling and do not...Precise manufacturing and high-grade materialsExceptional performance at a competitive price$19.99
- Astro Pneumatic Tool®2-piece Blue Steel TiN Max Duty Step Drill Bit Set (9442)2-piece Blue Steel TiN Max Duty Step Drill Bit Set by Astro Pneumatic Tool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...Wear Preventative CoatingTitanium Aluminum Nitride (TiALN) M2 High Speed Steel base material$24.63
- Astro Pneumatic Tool®3-piece Step Drill Bit Set (9445)3-piece Step Drill Bit Set by Astro Pneumatic Tool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...Self-starting multiple hole sizesDrill bits can cut accurate holes in sheet metal and plastics up to 3.4mm thick$15.42
- Century Drill & Tool®#1 HSS Fractional Step Drill Bit (2 Pieces) (27200)#1 HSS Fractional Step Drill Bit (2 Pieces) (27200) by Century Drill & Tool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...Century step drills are for cutting in ferrous and non-ferrous metals, plastics and wood up to 1/8" thickDouble flute design reduces chatter and deburrs holes$20.09
- Century Drill & Tool®#20 HSS Fractional Step Drill Bit (2 Pieces) (27201)#20 HSS Fractional Step Drill Bit (2 Pieces) (27201) by Century Drill & Tool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...Century step drills are for cutting in ferrous and non-ferrous metals, plastics and wood up to 1/8" thickDouble flute design reduces chatter and deburrs holes$40.07
- Century Drill & Tool®#3 HSS Fractional Step Drill Bit (2 Pieces) (27202)#3 HSS Fractional Step Drill Bit (2 Pieces) (27202) by Century Drill & Tool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...Century step drills are for cutting in ferrous and non-ferrous metals, plastics and wood up to 1/8" thickDouble flute design reduces chatter and deburrs holes$34.92
- Century Drill & Tool®#4 HSS Fractional Step Drill Bit (2 Pieces) (27203)#4 HSS Fractional Step Drill Bit (2 Pieces) (27203) by Century Drill & Tool®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will...Century step drills are for cutting in ferrous and non-ferrous metals, plastics and wood up to 1/8" thickDouble flute design reduces chatter and deburrs holes$41.08
- IRWIN®Unibit™ #1 Cobalt Fractional Step Drill Bit (10231CB)Unibit™ #1 Cobalt Fractional Step Drill Bit (10231CB) by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are perfect for use...6X Longer life vs. the competitionM35 grade Cobalt HSS$30.11
- IRWIN®Unibit™ #1 HSS Self-Starting Fractional Step Drill Bit (10231)Unibit™ #1 HSS Self-Starting Fractional Step Drill Bit (10231) by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are...Single-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuck$22.33
- IRWIN®Unibit™ #10 HSS Self-Starting Fractional Step Drill Bit (10310)Unibit™ #10 HSS Self-Starting Fractional Step Drill Bit (10310) by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are...Single-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuck$26.40
- IRWIN®Unibit™ #12 HSS Self-Starting Fractional Step Drill Bit (10312)Unibit™ #12 HSS Self-Starting Fractional Step Drill Bit (10312) by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are...Single-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuck$23.00
- IRWIN®Unibit™ #1T Titanium Fractional Step Drill Bit (15101)Unibit™ #1T Titanium Fractional Step Drill Bit (15101) by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are perfect for...Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminatesSingle-flute cutting edge for greater control through steps$36.45
- IRWIN®Unibit™ #2 HSS Self-Starting Fractional Step Drill Bit (10232)Unibit™ #2 HSS Self-Starting Fractional Step Drill Bit (10232) by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are...Single-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuck$23.76
- IRWIN®Unibit™ #20 HSS Hole Enlarging Fractional Step Drill Bit (10220)Unibit™ #20 HSS Hole Enlarging Fractional Step Drill Bit by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are perfect for...Single-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuck$44.43
- IRWIN®Unibit™ #3M HSS Metric Step Drill Bit (11103)Unibit™ #3M HSS Metric Step Drill Bit (11103) by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are perfect for use in mild...Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminatesSingle-flute cutting edge for greater control through steps$41.38
- IRWIN®Unibit™ #4 HSS Self-Starting Fractional Step Drill Bit (10234)Unibit™ #4 HSS Self-Starting Fractional Step Drill Bit (10234) by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are...Single-flute cutting edge for greater control through stepsHex shank prevents slipping in drill chuck$45.95
- IRWIN®Unibit™ #4T Titanium Fractional Step Drill Bit (15104)Unibit™ #4T Titanium Fractional Step Drill Bit (15104) by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are perfect for...Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminatesSingle-flute cutting edge for greater control through steps$65.22
- IRWIN®Unibit™ 3-piece HSS Step Drill Bit Set (10502)Unibit™ 3-piece HSS Step Drill Bit Set by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are perfect for use in mild steel,...Single-flute cutting edge for greater control through steps3 flatted shank prevents slipping in drill chuck$97.50
- IRWIN®Unibit™ 4-piece HSS Step Drill Bit Set (10225)Unibit™ 4-piece HSS Step Drill Bit Set by IRWIN®. IRWIN® step drill bits are ideal for drilling holes in just about any type of thin material. General purpose high speed steel UNIBIT step drill bits are perfect for use in mild steel,...Single-flute cutting edge for greater control through steps3 flatted shank prevents slipping in drill chuck$175.24
- Install Bay®#1 Unibit Fractional Step Drill Bit (IB59001)#1 Unibit Fractional Step Drill Bit (IB59001) by Install Bay®. Single Fluted Design Eliminates Skidding And Makes For Easier Resharpening. Also Features Laser Etched Hole Sizes And Anti Skid Tip. Works With Most Metals.Designed to help to get your job done rightManufactured utilizing the highest quality materials$76.99
Step drill bits are widely used in plumbing and general construction to make round holes in soft materials. However, they can also be applicable for very thin stainless steel, aluminum, brass, copper and other metals. These versatile tools are particularly handy when it comes to enlarging holes that have already been drilled. A step drill bit features a unique staircase profile that allows it to cut holes of different diameters. It has a smaller pilot drill point that drills the initial small holes, and to be able to achieve the desired size of the hole it’s recommended to advance the drill bit further into the material. Step drill bits are usually coated in a titanium-nitride coating that helps minimize heat build-up, enhance surface hardness and ensure long-lasting service.
Whether you are a professional contractor, a plumber or a hobbyist working on your own construction project, high-quality step drill bits offered on our website will give you the reliability and versatility you need to perform your tasks as easily and effectively as possible. Now you can create perfect round holes, enlarge the existing ones or deburr holes left by other bits using only one tool – and that’s the step drill bit. Here, we carry a full line of first-rate step drill bits that are made from the sturdiest materials such as high-speed steel to bring the ultimate in performance and wear resistance. Most step drill bits showcased in our online store have a flatted shank or hex shank that allows to avoid slipping in drill chuck.
