5Pcs Step Drill Bit Set HSS Cobalt Multiple 50 Sizes Conical Hole Cutter Titanium Coated Carbide Drill Bits Punch Tool for Stainless Steel Iron Sheet Metal Wood Drilling Hardware Multipurpose Industrial

Name: 5Pcs Step Drill Bit Set HSS Cobalt Multiple 50 Sizes Conical Hole Cutter Titanium Coated Carbide Drill Bits Punch Tool for Stainless Steel Iron Sheet Metal Wood Drilling Hardware Multipurpose Industrial
Brand: STONEGO
SKU: 1005012773574582
Price: 7.43 USD
Availability: InStock

$7.43 USD

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5Pcs HSS Cobalt step drill bit set with titanium coating, ideal for stainless steel, iron, metal, and wood. Includes 50 sizes, 4.5cm x 20cm x 14cm package, ships from the US.

5Pcs Step Drill Bit Set for Versatile Drilling This 5Pcs Step Drill Bit Set features multiple sizes for precise conical hole cutting. Ideal for stainless steel, iron, sheet metal, and wood, it delivers efficient drilling across various materials with consistent performance.

HSS Cobalt & Titanium Coated for Durability Made with HSS Cobalt and titanium coated carbide, these drill bits offer enhanced hardness and heat resistance. They maintain sharpness longer, reducing wear during heavy-duty industrial use.

50 Sizes for Precision and Flexibility With 50 different sizes in one set, this tool supports a wide range of hole diameters. The step design allows gradual drilling without changing bits, improving efficiency and accuracy in metal and woodwork projects.

Perfect for DIY and Industrial Applications Designed for woodworking and industrial use, this set is a must-have for both hobbyists and professionals. The center drill bit type ensures accurate starting points and prevents slipping during drilling.

Compact Packaging for Easy Storage Packaged in dimensions of 20.00 x 14.00 x 4.50 cm, this set is easy to store and transport. The lightweight design, weighing only 0.5 kg, makes it convenient for on-the-go projects and workshop organization.

Fast Shipping from the United States Ships from the United States, ensuring quicker delivery times. The 5Pcs set is sold as a single pack, providing immediate access to a complete drilling solution without delays.

Brand: STONEGO – Trusted Quality Crafted by STONEGO, this drill bit set combines reliability and performance. With Medium grit type and no high-concerned chemicals, it meets safety and quality standards for professional and DIY use.

Features

- Stonego Tools 5 piece step drill bits set replaces 50 individual drill bits which saves you a lot of trouble and space.

- Two-fluted design provides smoother and faster cutting.

- Cobalt steel with titanium coating ensures the bits have exceptional durability and will stay sharp for many years.

- The bits are ideal for cutting holes in plastic board, aluminum sheets, wood board, steel sheets etc.

- The bits come supplied in an organized aluminum case for easy storage and transport.

- Stonego tools is a must-have for HVAC professionals and DIY enthusiasts.

Specification

Type: 50-in-1 Drill Bit Set

Material: Cobalt high speed steel, Titanium coating

Overall Weight: 455 g

Case Size: 150x110x45 mm

Package Included:

5 x Drill Bit

1 x Aluminum Case

Contents:

Drill Bit 1: (1/4" - 6 Steps): 3/16, 1/4, 5/16, 3/8, 7/16, 1/2

Drill Bit 2: (1/4" - 13 Steps): 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

Drill Bit 3: (3/8" - 9 Steps): 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4

Drill Bit 4: (3/8" - 12 Steps): 3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8

Drill Bit 5: (3/8" - 10 Steps): 1/4, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-3/8

How To Use Step Drill Bits

Step drill bits are designed to enlarge a hole as the bit drills through the metal. Each step on a bit is larger in diameter than the previous step. Smaller step drill bits are self-starting and no pilot bit is needed to start the hole. On larger step drill bits you need to pre-drill a hole that is equal in diameter to the smallest step on the bit.

Always remember to wear appropriate eye protection (safety goggles or glasses).

Step 1: Create An Indentation

Use a center punch to create an indentation on the metal. Place the center punch on the surface of the metal and hit it with a hammer. This indentation will provide a place for the drill bit to 'catch' so that it doesn't drift to the wrong location.

Step 2: Drill The Hole

Secure the step drill bit into the chuck of the drill motor. Always create the initial hole with a small step drill bit before moving onto larger step drill bits in order to increase the diameter size of the hole. Apply cutting fluid to the center mark as well as the step drill bit. Align the tip of the bit with the center mark on the surface of the metal. Depress the drill's trigger to start drilling the hole ensuring to run the step drill bit completely through the metal. Add larger step drill bits as required in order to reach the desired hole diameter. When drilling the hole always remember to apply additional cutting fluid to the step drill bit as well as the edges of the hole to keep them cool.