Best Tri flat Shank Step Drill

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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amoolo Titanium Step Drill Bit (10 Step), 1/4\ to 1-3/8\

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. Prefect for Soft Metal Sheet/Wood/Plastic/Aluminum Sheet/Copper and other metal sheets. Suitable for Home DIY, General Building and Engineering Use..
DOUBLE-FLUTE DESIGN - Double cutting blades design guarantees a faster and smoother cutting, allows particles escape easily..
118° X-TYPE SPLIT POINT - Requires less pressure with self-centering and prevents walking..
3/8" TRI-FLATTED SHANK - Fits into most pistol drill and drill press securely without slippage when drilling new holes or enlarging existing holes..
ONE BIT WITH MULTIPLE DRILL SIZES -　10 STEP： Includes 1/4.

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LESOLEIL Large HSS Spiral Step Drill Bit - 1/4" to 2-5/8'' Grooves Cone Drill Bit Titanium Coated for Drilling Aluminium Iron Sheets, Wood, PVC Hole Cutting

... 13 Hole Step Sizes- 1/4", 3/8",1/2", 19/32'', 3/4",1", 1-1/4", 1-3/8", 1-5/8", 1-3/4", 2'', 2-3/16'', 2-3/8'', 2-5/8''(Largest size)..
Unique Design - Tri-flatted shank fits into power tools (1/4, 3/8, 1/2 electric drills or bench drills)chuck securely and eliminates slip. And the three-flute sharp removes chips faster and prevents metal fillings from flying around, the large drill bit can work more smoothly without heating up..
Compatibility - The quick-action tip drills twice as fast as other average step drills and can drill acrylic, PVC, wood, copper, plastic, aluminium or iron sheets(Up to 0.2'' in thickness)..
Wide Usage - Suitable for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron and many other types of sheet metal (NOT fit for steel or any other harder metal)..

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ZELCAN 10 Sizes Titanium Step Drill Bit 1/4 to 1-3/8 Inches High Speed Steel Drill Cone Bits for Sheet Metal Hole Drilling Cutting HSS Multi Size Hole Stepped Up Unibit for DIY Lovers Electrician

Durable HSS Drill Bit ----- High-speed steel makes it last longer than others, titanium coating ensure easily cut through iron sheets, aluminum sheets, copper & plastic & wood board and many other types of sheet metal with ease, and it can automatically deburr holes while drilling to keep the drill bit clean..
Titanium Coating ----- Coated with titanium, this step drill set performs well in heat, corrosion and rust resistance..
Revolutionary Design ----- Tri-flatted shank fits into power tools chuck securely and eliminates slip.
two-flute design clears chips faster and allows particles to escape easily..
Includes 10 Step Sizes ----- 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8"..
A Must-Have for Handyman or Professionals ----- Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron and many other types of sheet metal (excluding steel or any other harder metal)..

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Hoteche 8PC HSS Cobalt Silver & Deming Drill Bits Set, Large Size 9/16\ to 1\

Professional Quality Bits Can Be Used In Any Electric Drill Or Drill Press With A 1/2" Or Larger Drill Chuck..
Material: High Speed Steel, Cobalt Coated.

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OXMUL M35 Step Drill Bit for Metal 3/16 to 7/8 Cobalt Bits Extra-Heavy Duty for Stainless Steel Hard Steel Mild Metal Aluminum Wood Industrial Grade 12-Steps Co35A2-A

[Extra-Heavy Duty+ for Stainless Steel] The M35 Cobalt Drill Bits is Industrial Grade and can drill 8X longer life and 3X faster. This Cobalt Drill bits can help you cut more holes, extra-heavy duty+ for Stainless Steel, Hard steel, Mild Metal, Galvanized Steel, Aluminum,Iron, Wood Plate,PVC and Copper. If you're expanding a lot of holes in metal sheet then please choose this step drill bit.
[M35 Cobalt Steel] This M35 Cobalt Drill bit can successfully drill more than 35 holes easily into 1/5" thick Stainless Steel plate like knife through butter!.
[12 Steps ︱2-Spiral-Flute] 12 Steps: 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.
[Cutting Fluid] Cutting Fluid must be poured during work for longer life! Prohibit water-cooling to prevent rust!.
[3/8" Tri-Flatted Shank] Fits into power tools chuck securely and eliminates slip.

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Drill Hog 8 Pc Jumbo COBALT M42 Silver & Deming Drill Bit Set

Drill Hog 8 Pc Jumbo COBALT M42 Silver & Deming Drill Bit Set.
Included Sizes: 1-1/16", 1/1/8", 1-3/16", 1-1/4", 1-5/16", 1-3/8", 1-7/16", 1-1/2".

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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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6 pcs Step Drill Bit Set HSS Unibit Step Drill Bit and Automatic Center Punch Double Cutting Blades Hex Shank Step Bits for Metal with Aluminum Case

【Double cutting blades】 Our step drill bit features a double cutting blades design, provides a smoother cut with rapid chip evacuation, making it easier to dislodge particles from the material. The 118° tip design enhances cutting speed and increases wear resistance while preventing tool walking..
【HSS】 The step drill bit set is made of high speed steel, wear resistant and corrosion resistant to extend the life of the step bit..
【Automatic center punch】 The carbide tip makes the center punch stronger. Knurling design on the surface makes it easy to prevent slippage..
【What you get】 Our unibit step drill bit set includes 5 standard drill bits and an automatic center punch that can be used to machine 50 diameters of holes for metal, wood, plastic sheet and other materials, greatly increasing work efficiency. Our set includes 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"), 1 x 12 step bit (3/8" shank.
3/16" - 7/8"), and 1 x 9 step bit (3/8" shank.
【Safe storage】 The step drill bit set comes with a custom aluminum case, sturdy and durable, easy to store and carry..

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