Search Results:
Search Results:
Search Results:
Search Results:
Learn more by watching our Alpha SI21PB | TUFFBOX Gold Series Drill Bit Set 1/16 - 3/8" | Imperial | 21 Bits video.
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.
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.
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
Damaged or Faulty Goods
If your order arrives damaged or is faulty, let us know within 24 hours.
Contact us via our chat to arrange the return.
Exclusions
We can’t accept returns for:
How to Request a Return
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° |
Help other Sparky Direct users shop smarter by writing reviews for products you have purchased.