Best Adjustable Step Drill Bit

NEIKO 10180A Steel Spiral Quick-Change Step Drill Bit for Metal with 4-Flute Spiral Grooved Design, Nitride-Coated High-Speed Steel Multitool with 12 Sizes in 1 Step Bit, Unibit, Hole Drill Bit

  • HIGH-QUALITY DRILL BIT: Our individual NEIKO 10180A step drill bit is made with #4241 high-speed steel and has a titanium nitride coating for extra durability. The 4-flute spiral grooved design makes this a fast and long-lasting metal cutting tool..
  • QUICK-CHANGE DRILL BIT: With a 1/4-inch quick-change hex shank, this step drill bit fits securely in most pistol drills or drill presses. Use this cone-shaped, versatile, and small drill bit for metal projects at work or home..
  • DRILL BIT FOR HARDENED STEEL: This stepper drill bit for metal is perfect to create the exact hole size you need. The fluted spiral drill-bit design automatically deburrs and expands holes for a cleaner drilling process every time without heating up..
  • MULTISIZE DRILL BIT: This metal step drill bit can drill holes in 12 different sizes to meet any job requirements. Our 12-step drill bit for metal drills holes in 1/16-inch increments ranging from 3/16″ to 7/8″ to create the perfect-sized holes..
  • HEAVY-DUTY DRILL BITS: Our drill bits are created to work with any project, large or small. Our multifunction drill bits are designed with you in mind, so you can get your work done with confidence and speed using our quality tools!.
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Yougfin Step Drill Bits with Automotive Center Punch,Unibit Titanium Coated High Speed Steel Step Bit Set for Hole Drilling,50 Sizes with Aluminum Case for DIY Lovers,5+1pcs

  • 【High Quality Material】：High-speed steel, also known as HSS, is the most common drill bit for metal applications. It incorporates an element with titanium that makes the drill bit harder than a typical HSS bit and thus suitable for sheet metal working and are ideal for cutting non-ferrous metals, plastic, wood board, etc.
  • 【Extra Automatic Center Punch】：You know how when you try to drill into metal or hard surfaces and your drill bit "walks" no matter how much you think it's steady? Yeah, we have a tool for that. The automatic center punch has a heavy-spring action, and you simply place the tip where you want to drill, and it punches a slight indentation in the surface. Just enough so that the drill bit won't walk.
  • 【118° Split Point】：These step drill bits have a small point angle of 118° and require less pressure when centering in the material. The point starts drilling at contact, reducing friction, pressure, and heat. The larger the point angle, the higher the contact pressure and the centering in the material requires more pressure.
  • 【Double Flutes & Tri-Flatted】：These drill bits feature a special dual flute straight design for dependable performance and durability. And the shanks on these step drill bits have three f....
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3 Pcs Step Drill Bit Set, High-speed Steel Drill bit, Titanium Coated Unibit Step Drill Bit, Two Flute Design Step Drill With Tri-flatted Shank, 1/4\ to 1-3/8\

  • HSS 4241: The step drill bit is made of strong HSS for outstanding durability and sharpness along with a titanium coating to ensure strong wear resistance, reduced friction. (For anti-rust, a small amount of rust Inhibitor will be coated with new items.).
  • 32 in 3 Drill Bits: Multi-size in one drill bit, holes of different diameters can be processed at one time. Replacing drill bits and loading a Center Hole are not required, efficient and time-saver..
  • 118°X Split Point： Unibit step drill bit with 118°X split point improves the cutting speed with self-centering and prevents walking to keep the step drill bit stable boosting the efficiency..
  • Stability and Safety: The step drill with tri-flatted shank fits into power tools chuck securely and eliminates slip and is compatible with all kinds of drilling machines. Step visibility is increased with laser engraved numbers..
  • Warm Tips: The step drill bit is a great helper to drill holes on Aluminum, Iron, Wood, Plastic material sheets. But Not the best choice for stainless steel, carbon steel, tile..
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NEIKO 10169A Step Drill Bit Set and Automatic Center Punch | 5 Piece, 41 SAE Sizes Total, 1/8” – 1-3/8” | Titanium High Speed Steel Unibit, Stepper Cone Drill Bit | Two Flute Step Down Bits

  • HSS COBALT STEP BIT: Classic stepdrill bit constructed of high-speed steel with titanium coating for drilling holes in plastic, aluminum, copper, stainless steel, and many other types of sheet metal. Also doubles as a hole expander..
  • TWO FLUTE & TRI SHANK: Two-flute design deburrs during drilling, clearing chips faster and allowing particles to escape for clean cut holes. Each step drill bit features a tri-flatted shank for a secure fit into power tool chucks, eliminating slip..
  • SPRING LOADED CENTER PUNCH: Our 5-inch automatic spring punch tool is a great tool for working with materials like wood, plastic, metal, and leather. Centering tool is spring loaded with an adjustable cap that accommodates any project..
  • INCLUDES: Four multipurpose dill bit in 1/4-inch shank and 3/8-inch shank with automotive center punch and a red blow mold carrying case for easy convince and storage..
  • MULTIPLE HOLE DRILL BIT: 4 stepper bits included. 1 x 6 step bit (1/4” shank.
  • 3/16” - 1/2”), 1 x 13 step bit (1/4” shank.
  • 1/8” – 1/2"), 1 x 10 step bit (3/8” shank.
  • 1/4” – 1-3/8”), and 1 x 12 step bit (3/8” shank.
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OXMUL Step Drill Bits for Metal, 3/16 to 7/8, M2 HSS, Duty for Stainless Steel, Mild Steel, Hard Metal, Aluminum, Wood, Copper, PVC, 12-Steps. 2-Spiral-Flute. #201

  • [M2 HSS Coated] Made of M2-Coated HSS, this stepped Drill Bit have 5X Longer Life of Regular Drill Bit. This Step Bit drill 2X Faster for Stainless Steel, Hard Metal, Mild Steel, Galvanized Steel, Aluminum,Iron, Wood Plate, PVC and Copper. If you want to drill faster and many holes on metal, then please choose this step drill bit.
  • [Duty for Stainless Steel] A test. Drill in 1.3mm thick Stainless Steel square pipe. This Step Drill bit successfully drilled 12 holes. But another Titanium Step Drill only drilled 1 holes, then blunt.
  • [12 Steps & 2-Spiral Flute] Drills 12 different hole sizes, from 3/16", 1/4", 5/16", 3/8", 7/16",1/2", 9/16", 5/8", 11/16", 3/4" 13/16" to 7/8". 2-Spiral Flute:Clears Chips faster.
  • [118° Split Point Tip] Split Point tip prevents "walking," gets fast starts, and eliminates the need for pilot/starting hole.
  • [3/8" Tri-Flatted Shank] Fits into power tools chuck securely and eliminates slip.
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NEIKO 10181A Step Drill Bit Set 3 Piece Spiral Grooved for Faster Drilling Step Bits for Stainless Steel Metal Wood Plastic Unibit Cone Drill Bits with 31 Step Sizes Total

  • 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 31 step sizes, 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 3 drill bits of a combined 31 sizes to add to your drilling arsenal: 13 step drill (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-inch) 6 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2-inch) and 12 step drill (3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8-inch)..
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Step Drill Bit Set - Titanium Coated, High Speed Steel Drill Cone Bits for Sheet Metal Hole Drilling Cutting, HSS Multi Size Hole Stepped Up Unibit for DIY Lovers,3pcs

  • 【QUILITY STEP DRILL BITS】 The step drill bits are made of classic high-speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, wood board, copper, stainless steel and many other types of sheet metal..
  • 【DOUBLE CUTTING BLADES DESIGN】The HSS step drill bit set is designed with double cutting blades, which provides faster, smoother and accurate drilling..
  • 【TRI-FLATTED SHANK】 Each unibit step drill bit optimally fits into power tools such as impact drill chucks securely and eliminates slip for higher efficiency of output..
  • 【WELL PERFORMED 】 The multiple hole drill bit set include 28 size, which can cuts through steel, sheet metal, wood board and other surfaces creating relatively clean holes as you drill. Suitable for home DIY, and general building/ engineering use.t slippage and shedding during the rotation..
  • 【SET INCLUDES】The cone drill bits set includes 3 common sizes for versatility. Bit #1 (6 steps): 3/16.
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DEWALT Drill Bit, #10 Countersink, 3/16-Inch (DW2539)

  • Drill, countersink and counterbore in one step with this drill bit.
  • Four-cutter countersink and tapered drill bits for wood, metal and plastic provide superior speed and ideal finish.
  • Replacement tapered bits offered for DEWALT drill bits.
  • Drill, countersink and counterbore in one step.
  • Four-cutter countersink and tapered drill bit provide superior speed and ideal finish.
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8 Pack Woodworking Countersink Drill Bits Set 3in1 Heavy Duty M2 Pilot Drill Bits Depth Adjustable 82-Degree Chamfer 1/4” Hex Shank for #4#6#8#10#12#14 Screws in Soft & Hard Wood

  • 3in1 Countersink Drill Bit Set – Enable you to Drill, Countersink and Counterbore in one step, ideal woodworking tools for setting screws flush with....
  • Meet All Your Needs–8 pcs Countersink drill bits assortment in size 5/64”, 3/32”, 7/64”, 1/8” (x2), 9/64” (x2), 5/32” for perfect....
  • Easy To Use–3 sharp edged 82-degree chamfer design Counter sink bits built with 1/4" Hex Shanks with groove for quick size changes without bit....
  • Drilling Depth Adjustable–Extra Pilot bits included.
  • Working length of the pilot drill bit is adjustable for precise depth control.
  • Compatible with More Materials – Pilot bits are made of high quality M2 steel, countersink bits make of high carbon steel, able to drill in hard....
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