Step Drill Bit,Knoweasy 3pcs High Speed Steel Drill Kit for Metal Aluminium and Wood Drilling Hole

$9.99 $19.99 You Save 50% ($10.00)

✅【Notice:】 High-step design allows you to stop and don't drill big!
✅【Improved Design:】Two-fluted design provides faster,smoother cutting,provided with small pressure and the sets.
✅【Hexagonal Shank :】The hexagonal shank titanium drill uses a double-edged design to make cutting smoother and smoother;Increases cutting speed with self-centering and prevents walking.
✅【Application:】Perfect for home repairs and light jobs such as drilling holes in plastic, aluminum, copper, iron sheet and many other types of sheet metal (excluding steel or any other harder metal).
✅【After Sales Warranty:】Your customer satisfaction and 12 months warranty of step drill bit can be guaranteed.

Description
Reviews

Description

Feature:

3 standard SAE step drill bits can drill 28 different size of holes on different thickness of materials.
Made of high quality high speed steel that is hard and sharp enough to drill through wood, plastic, steel and sheet metal.
Titanium coated surface can reduce friction and overheat when drilling through material for longer life time.
1/4" hex shank (6.35mm)can be easily fit into power driver,drill and press drill.
These drill bits works great in making a smooth, clean and perfectly round hole.
This drill bit set includes 3 sizes(3/16-1/2,1/4-3/4,1/8-1/2), which meet your different needs perfectly.
High speed, titanium nitride coated steel Replaces 28 separate drill bits Two fluted design for fast, smooth cutting.
Such as carbon steel plate, sheet iron, insulation boards, wood. Cannot be used for stainless steel.
When inject cold water while working, can effectively extend the service life of the drill bit.

Package Included:

3 x Step Drill Bit Set with Nylon Bag

Specification:

Color: Golden and silver.
Material: High Speed Steel.
Made of premium material for durable and practical use.
Shank :1/4" Hexagonal (6.35 mm).
Surface treatment: titanium coated.
Tools: Power drill,driver and press drill.

Notice:

When use the drills, please always wear protective goggles, mask and gloves.
Don't touch it with your hand as the drill will produce heat when using, there will be the danger of burning.
Please pay attention that the product need to be cooled by water injection when you use the product drill metal plate.The step drill is easy to become soft because of high temperature. If you don't cool the drill, it will be scrapped quickly.
Our drills are HSS High-speed steel 4241, you'd better not use it to drill the material that is same as our product or drill the material that the hardness is higher than our product.

User Instruction

Star drilling at low speed. Do not push too much.Let the drill bit to cut by itself. The harder the material it is working with,the lower speed shall be applied.
Inject coolant oil while working,it will dramatically increase the drilling efficiency and extend the drill bit life time
Drill bits are good for wood, plastic,steel and sheet metal drilling. Stainless steel is not recommended.

Six step bit:

3/16''(4.76mm),1/4''(6.35mm), 5/16''(7.94mm),3/8''(10.35mm), 7/16''(11.11mm),1/2''(12.7mm) drilling diameter, up to 3/8"(9,52mm) depth of each step

Nine step bit:

1/4''(6.35mm)5/16''(7.94mm),3/8''(10.35mm),7/16''(11.11mm),1/2''(12.7mm),9/16''(14.28mm), 5/8''(15.88mm),11/16''(17.46mm), 3/4''(19.05mm) drilling diameter,up to 3/16"(4.76mm) depth of each step

Thirteen step bit:

1/8''(3.18mm), 5/32''(3.97mm), 3/16''(4.76mm), 7/32''(5.56mm),1/4''(6.35mm),9/32''(7.14mm), 5/16''(7.94mm),11/32''(8.73mm),3/8''(9.53mm),13/32''(10.32mm),7/16''(11.11mm),15/32''(11.91mm),1/2''(12.7mm) drilling diameter, up to 1/8"(3.18mm) depth of each step

High Speed Steel:

Classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, copper, stainless steel and many other types of sheet metal

Reviews

Feature:

3 standard SAE step drill bits can drill 28 different size of holes on different thickness of materials.
Made of high quality high speed steel that is hard and sharp enough to drill through wood, plastic, steel and sheet metal.
Titanium coated surface can reduce friction and overheat when drilling through material for longer life time.
1/4" hex shank (6.35mm)can be easily fit into power driver,drill and press drill.
These drill bits works great in making a smooth, clean and perfectly round hole.
This drill bit set includes 3 sizes(3/16-1/2,1/4-3/4,1/8-1/2), which meet your different needs perfectly.
High speed, titanium nitride coated steel Replaces 28 separate drill bits Two fluted design for fast, smooth cutting.
Such as carbon steel plate, sheet iron, insulation boards, wood. Cannot be used for stainless steel.
When inject cold water while working, can effectively extend the service life of the drill bit.

Package Included:

3 x Step Drill Bit Set with Nylon Bag

Specification:

Color: Golden and silver.
Material: High Speed Steel.
Made of premium material for durable and practical use.
Shank :1/4" Hexagonal (6.35 mm).
Surface treatment: titanium coated.
Tools: Power drill,driver and press drill.

Notice:

When use the drills, please always wear protective goggles, mask and gloves.
Don't touch it with your hand as the drill will produce heat when using, there will be the danger of burning.
Please pay attention that the product need to be cooled by water injection when you use the product drill metal plate.The step drill is easy to become soft because of high temperature. If you don't cool the drill, it will be scrapped quickly.
Our drills are HSS High-speed steel 4241, you'd better not use it to drill the material that is same as our product or drill the material that the hardness is higher than our product.

User Instruction

Star drilling at low speed. Do not push too much.Let the drill bit to cut by itself. The harder the material it is working with,the lower speed shall be applied.
Inject coolant oil while working,it will dramatically increase the drilling efficiency and extend the drill bit life time
Drill bits are good for wood, plastic,steel and sheet metal drilling. Stainless steel is not recommended.

Six step bit:

3/16''(4.76mm),1/4''(6.35mm), 5/16''(7.94mm),3/8''(10.35mm), 7/16''(11.11mm),1/2''(12.7mm) drilling diameter, up to 3/8"(9,52mm) depth of each step

Nine step bit:

1/4''(6.35mm)5/16''(7.94mm),3/8''(10.35mm),7/16''(11.11mm),1/2''(12.7mm),9/16''(14.28mm), 5/8''(15.88mm),11/16''(17.46mm), 3/4''(19.05mm) drilling diameter,up to 3/16"(4.76mm) depth of each step

Thirteen step bit:

High Speed Steel:

Classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, copper, stainless steel and many other types of sheet metal

Step Drill Bit,Knoweasy 3pcs High Speed Steel Drill Kit for Metal Aluminium and Wood Drilling Hole

Description

Specification:

Notice:

User Instruction

Six step bit:

Nine step bit:

Thirteen step bit:

High Speed Steel:

Reviews

Related Items

Specification:

Notice:

User Instruction

Six step bit:

Nine step bit:

Thirteen step bit:

High Speed Steel:

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