212 Series HSS Extra-Long 11/32″ 12″ Drill Bit Round Shank Michigan

Description

Product Overview

The 212 Series High-Speed Steel (HSS) extra‑long drill bit is engineered for professionals who demand precision and reach in demanding applications. Manufactured by Michigan Drill Corporation, this bit combines a ground finish with a round shank, delivering a balance of hardness, toughness, and smooth operation. With an 11/32 inch (approximately 8.9 mm) diameter and a 12 inch (30.5 cm) overall length, it provides the extended reach needed for deep‑hole drilling in a variety of materials, including wood, metal, and engineered plastics. The 118° conventional point geometry initiates cuts cleanly, reducing the risk of walk‑off and ensuring accurate hole placement.

Built from high‑quality HSS, the bit resists wear and maintains its cutting edge even under high temperatures generated by prolonged drilling. The spiral flute design evacuates chips upward and outward, minimizing clogging and extending tool life. The round shank is compatible with most chuck systems, allowing seamless integration into standard power drills, magnetic drills, and portable rotary tools. This versatility makes the 212 Series an ideal choice for both workshop and field environments where reliability and performance are paramount.

Additional specifications include a compact package dimension of 12.1 × 0.6 × 0.6 inches and a lightweight of just 3.2 ounces, facilitating easy handling and storage. Since its introduction in October 2013, the product has maintained a strong reputation, ranking #63 in the Long Length Drill Bits category on major retail platforms. Whether you are a seasoned contractor, a dedicated hobbyist, or a maintenance technician, this drill bit offers the durability and precision required for demanding drilling tasks.

Usage

Designed for deep‑hole applications, the 212 Series drill bit excels in scenarios where standard length bits fall short. It is particularly effective for creating clearance holes for wiring, plumbing, and fasteners in construction projects, as well as for drilling pilot holes in metal fabrication and automotive repair. The bit’s ability to maintain a straight trajectory over long distances reduces the need for multiple repositionings, saving time and improving overall efficiency on the job site.

When used with a variable‑speed drill, the bit performs optimally at moderate RPMs, allowing the user to control heat buildup and preserve the cutting edge. The ground finish reduces friction, while the spiral flute design ensures continuous chip removal, preventing binding in dense materials. For best results, apply cutting fluid or lubricant appropriate to the material being drilled, especially when working with stainless steel or hardened alloys. The round shank ensures a secure grip in standard three‑jaw chucks, providing stability and reducing vibration during operation.

Why Choose Us

Michigan Drill Corporation stands behind every product with a commitment to quality and customer satisfaction. The 212 Series drill bit reflects decades of expertise in tool manufacturing, incorporating rigorous testing protocols to guarantee performance under real‑world conditions. Each bit undergoes a precision grinding process that delivers a consistent ground finish, enhancing cutting efficiency and extending service life.

Our after‑sales support includes technical assistance, warranty coverage, and access to a network of service centers ready to address any concerns. By choosing this drill bit, you benefit from a product that not only meets industry standards but also exceeds expectations for durability, accuracy, and ease of use. We continuously gather feedback from professionals to refine our designs, ensuring that each new iteration delivers incremental improvements in performance and reliability.

Key Features

• High‑speed steel construction provides exceptional hardness and wear resistance for long‑lasting performance.
• Extra‑long 12‑inch length reaches deep cavities, reducing the need for multiple drill passes.
• Ground finish minimizes friction, delivering smoother cuts and lower heat generation.
• Spiral flute design efficiently evacuates chips, preventing clogging and extending tool life.
• Round shank ensures compatibility with most chucks and includes dedicated customer support for any installation questions.

Performance Benefits

The combination of a 118° conventional point and a precisely ground tip enables rapid penetration with reduced torque, making the bit suitable for both high‑speed drilling and low‑speed, high‑torque applications. Its balanced weight distribution reduces operator fatigue during extended use, while the HSS material maintains sharpness even after repeated drilling cycles. The bit’s ability to handle a wide range of materials—from softwoods to hardened steels—means you can rely on a single tool for multiple project requirements, simplifying inventory and reducing overall tool costs.

In addition, the bit’s design promotes consistent hole diameter throughout its length, ensuring that deep holes retain the same tolerance as shallow ones. This uniformity is critical in applications such as installing dowels, creating threaded inserts, or preparing channels for wiring where dimensional accuracy directly impacts the final assembly quality.

Installation & Compatibility

Installation is straightforward: simply insert the round shank into a standard three‑jaw chuck, tighten securely, and verify that the bit is centered. The shank’s diameter conforms to common drill specifications, eliminating the need for adapters or special tooling. For magnetic base drills, the bit’s magnetic retention is enhanced by the round shank geometry, providing a stable connection even on vertical or overhead surfaces.

Compatibility extends to a variety of power sources, including corded drills, cordless batteries, and pneumatic rotary tools. When paired with a variable‑speed controller, users can fine‑tune the RPM to match material hardness, optimizing chip removal and surface finish. The bit’s versatility makes it an excellent addition to any professional’s toolkit, whether for construction, maintenance, or fabrication tasks.

FAQ

What materials can this drill bit effectively drill?

The 212 Series HSS bit is suitable for wood, soft metals such as aluminum, stainless steel, and many engineered plastics. Its high‑speed steel composition allows it to cut through tougher alloys when used with appropriate cutting fluid and proper speed settings.

How does the spiral flute design improve drilling performance?

The spiral flute channels chips away from the cutting edge, moving them upward and out of the hole. This reduces the chance of chip re‑engagement, minimizes heat buildup, and helps maintain a clean, straight hole even at greater depths.

Is the round shank compatible with all drill chucks?

Yes, the round shank conforms to standard chuck dimensions found on most bench, handheld, and magnetic base drills. It provides a secure grip without the need for special adapters, ensuring stable operation across a wide range of equipment.

What warranty or support does Michigan Drill provide?

Michigan Drill offers a limited warranty covering manufacturing defects and provides technical support for installation, usage tips, and troubleshooting. Customers can contact our service team via phone or email for prompt assistance.

Can this bit be used for precision drilling in CNC machines?

While primarily designed for handheld use, the bit’s consistent geometry and stable shank make it suitable for CNC spindle applications where the machine can accommodate the 12‑inch length and round shank. Proper collet selection is recommended for optimal rigidity.