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        Learn more by watching our Alpha SI21PB | TUFFBOX Gold Series Drill Bit Set 1/16 - 3/8" | Imperial | 21 Bits video.

        Alpha SI21PB | TUFFBOX Gold Series Drill Bit Set 1/16 - 3/8" | Imperial | 21 Bits

        The Alpha SI21PB TUFFBOX Gold Series Drill Bit Set includes 21 high-quality drill bits ranging from 1/16" to 3/8" in 1/64" increments, engineered for durability and precision. This set is housed in a robust plastic case with rugged rubber grips and is built to withstand the demands of any job site. The secure locking catch ensures the bits remain in place, while the internal feeds and speeds chart helps you optimize performance for each task.

        Each drill bit features a 135° split point, reducing wandering and allowing for faster, more accurate cutting. The titanium nitride coating enhances performance by reducing heat and increasing lubricity, significantly extending the life of the drill bits. Perfect for drilling into steel, stainless steel, wood, and plastic, the Alpha TUFFBOX set is an essential tool for any tradesperson.

        Alpha SI21PB Features:

        • Tough Plastic Case: Protects drill bits with rugged rubber grips for enhanced durability.
        • 135° Split Point: Enables faster cutting and minimizes wandering during drilling.
        • Titanium Nitride Coating: Reduces heat, increases lubricity, and extends bit life.
        • Strong Locking Catch: Keeps the drill bits securely stored in the case.

        Alpha SI21PB FAQ:

        Q: What sizes are included in the drill bit set?
        A: The set includes 21 drill bits ranging from 1/16" to 3/8" in 1/64" increments.

        Q: What materials can these drill bits be used on?
        A: These drill bits are suitable for use on steel, stainless steel, wood, and plastic.

        Q: Does the set come with a case?
        A: Yes, the set comes in a tough plastic case with rugged rubber grips and a strong locking catch for secure storage.

        (SI21PB)

        100-Day Fuss-Free Returns
        We want you to love what you buy—but if you change your mind, that’s okay too. That’s why Sparky Direct offers a 100-day money-back guarantee.

        • Items must be unused, with all parts, accessories, and original packaging.
        • We can’t accept returns if the product is damaged, incomplete, or not in resalable condition.
        • Proof of purchase is required.
        • Return shipping is the responsibility of the customer. 

        If your item isn’t in its original condition, please contact us before returning it—we might save you time and money.

        All products come with a manufacturer’s or supplier’s warranty

        • Warranty starts from the Invoice Date
        • Some suppliers offer in-home warranties and handle claims directly, so you won’t need to uninstall or return the product. Chat with us to check if your product qualifies.
        • Sparky Direct isn’t responsible for losses caused by product failure.
        • Warranties are void if products aren’t installed by a licensed electrician.

        Damaged or Faulty Goods
        If your order arrives damaged or is faulty, let us know within 24 hours.

        • Sparky Direct will pay for return shipping via an emailed return label.
        • If the fault is confirmed, we will send you a replacement item or provide a refund.

        Contact us via our chat to arrange the return.

        Exclusions
        We can’t accept returns for:

        • Items that have been installed, modified, or used
        • Clearance, End of life, Discontinued, or special order items (unless faulty)
        • All PPE Items
        • Goods returned without original packaging or proof of purchase

        How to Request a Return

        1. Contact our customer service team with your order number.
        2. Confirm it’s eligible under our return or warranty policy.
        3. Pack the item securely and return it using a trackable service.
        4. Once we receive and inspect it, we’ll process your refund or replacement.

        Warranty starts from Invoice Date

        Domestic Use: 1 Year
        Commercial Use: 1 Year
        Warranty Method: Return to Sparky Direct

        These specifications and characteristics outline physical, mechanical, electrical details.

        Brand Alpha
        SKU SI21PB
        Barcode # 9342386014068
        Package Weight 0.740kg
        Package Width 0.125m
        Package Height 0.070m
        Package Length 0.205m
        TYPE VALUE
        Type Tools
        Brand Alpha
        Tool Type Drill Bit Set
        Series Gold
        Set Includes 21 Imperial Drill Bits
        Drill Split Point 135°
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