What are the main types of drill bits for metal, and when should I use each?

High-speed steel (HSS) bits are a common choice for general-purpose drilling in metal, wood, and plastic, offering a good balance of cost and performance. Cobalt drill bits are more heat-resistant, making them suitable for harder metals like stainless steel. For very hard materials or production drilling, carbide-tipped bits provide excellent durability and cutting speed. When selecting, consider the material hardness and desired hole precision.

What's the difference between jobber length and other drill bit lengths?

Jobber length drill bits, like the Hanson HSS series, are a standard, general-purpose length. They offer a good compromise between reach and rigidity. Shorter bits, such as screw machine length, are more rigid and reduce the risk of breakage, while longer bits, like extension or aircraft length, allow you to drill deeper holes. Choose the length based on the depth and accessibility of the hole you need to drill.

What are masonry drill bits and how do they differ from standard drill bits?

Masonry drill bits, such as the Vermont American Double Flute Masonry Bit, are designed for drilling into brick, concrete, stone, and other masonry materials. They typically feature a carbide tip that is much harder than standard steel bits, allowing them to withstand the abrasive nature of masonry. Also, they often have a double flute design to remove debris more efficiently. Standard drill bits are not suitable for masonry as they will quickly dull or break.

What is a step drill bit (Unibit) used for?

A step drill bit, sometimes called a Unibit, is designed to drill multiple hole sizes with a single bit. They are ideal for drilling clean, round holes in thin materials like sheet metal, plastic, and wood. The stepped design allows you to gradually increase the hole size, reducing the risk of snagging or damaging the material. Always use cutting oil when drilling metal with a step drill bit to prolong its life and improve the quality of the hole.

How do I choose the right size drill bit for tapping threads?

Selecting the correct drill bit size for tapping threads is crucial for creating strong, accurate threads. The drill bit size depends on the tap size and thread pitch. Use a tap drill chart to determine the correct drill bit size for your specific tap. It's generally better to err on the side of a slightly larger drill bit to avoid breaking the tap, especially when working with harder materials.

What is the significance of the point angle on a drill bit?

The point angle of a drill bit affects its performance and suitability for different materials. A 118-degree point angle, common on general-purpose HSS bits, is suitable for drilling steel, wood, and plastic. A sharper angle, like 135 degrees, is better for drilling harder materials like stainless steel and helps prevent the bit from wandering. Always verify the point angle is appropriate for the material you are drilling.

What can cause a drill bit to break, and how can I prevent it?

Drill bits can break due to a variety of factors, including using the wrong type of bit for the material, applying excessive pressure, overheating, or wobbling due to an improperly secured workpiece. To prevent breakage, use the correct type of drill bit for the material, apply steady and moderate pressure, use cutting fluid to reduce heat, and ensure the workpiece is securely clamped. Also, inspect your bits regularly for wear or damage.

What safety precautions should I take when using drill bits?

Always wear appropriate personal protective equipment (PPE) when using drill bits, including safety glasses to protect your eyes from flying debris. Secure the workpiece firmly to prevent it from spinning or moving. Avoid wearing loose clothing or jewelry that could get caught in the drill. If drilling metal, be aware that the bit and workpiece can become hot, so use caution and wear gloves if necessary. Always consult the tool and accessory's safety guidelines.

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Hanson | 63113 | Cobalt Straight Shank Drill Bit - 13/64In

Name: Cobalt Straight Shank Drill Bit - 13/64In
Brand: Hanson
SKU: 72960
Price: 3.39 USD
Availability: InStock
Rating: 3 (1 reviews)

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Specifications

Model Number: {manufacturers_part_number}
Product Name: Cobalt Straight Shank Drill Bit - 13/64In
Manufacturer: Hanson Hanson
Material: Cobalt Alloy
Shank Type: Straight
Diameter: 13/64 inch (0.2031 inches)
Weight: 0.05 lbs
Dimensions: 3.6 x 0.25 x 0.25 inches

Key Features

Premium Cobalt Alloy Construction: Engineered with a high percentage of cobalt, this drill bit offers superior hardness and heat resistance compared to standard high-speed steel (HSS) bits.
Precision 13/64 Inch Diameter: Provides an exact hole size for specialized applications, ensuring accurate and consistent drilling.
Straight Shank Design: Features a versatile straight shank, ensuring compatibility with a wide range of drill chucks, including standard keyed and keyless varieties.
Optimized Cutting Geometry: Designed for efficient chip evacuation and smooth drilling, minimizing heat buildup and reducing wear on the bit.

Applications

The Cobalt Straight Shank Drill Bit - 13/64In is ideal for drilling in demanding materials and environments. Its robust construction makes it suitable for:

Metalworking: Creating holes in tough metals such as stainless steel, cast iron, titanium, and other high-tensile alloys.
Fabrication: Essential for industrial and workshop settings requiring durable drilling solutions for various ferrous and non-ferrous metals.
Maintenance & Repair: Performing heavy-duty tasks in automotive, plumbing, and general machinery repair where precision and durability are critical.
Aerospace & Automotive: Suitable for applications requiring precise and reliable drilling in specialized alloys often found in these industries.

Benefits

Extended Tool Life: The cobalt alloy withstands high temperatures and abrasion, significantly outlasting conventional HSS bits when drilling hard or abrasive materials. This reduces the frequency of bit changes and replacement costs.
Superior Performance in Hard Metals: Effortlessly drills through challenging materials that would quickly dull or damage standard bits, ensuring clean, precise holes without excessive force.
Consistent Drilling Accuracy: Maintains sharpness over longer periods, producing uniform and accurate 13/64 inch holes for critical component fitting and assembly.
Enhanced Drilling Efficiency: The design facilitates faster material penetration and smoother cutting action, reducing user fatigue and improving overall productivity.
Versatile Compatibility: The standard straight shank ensures easy and secure fitment in most drills, offering broad utility across different drilling equipment.

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Model: 72960
Shipping Weight: 0.05lbs
Manufacturers Part #: 63113
Manufactured by: Hanson
Also Known As: HAN63113

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Hanson | 63113 | Cobalt Straight Shank Drill Bit - 13/64In

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$3.39

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