7x HSS Center Drill Bits Set 60° Combined Countersink Spotting Tool for Metalworking, Steel, Brass, Copper, Aluminum

Upgrade your workshop with this 7x HSS Center Drill Bits Set 60° Combined Countersink Spotting Metalworking Tool, engineered for precision, durability, and versatility. Whether you're a professional machinist or a hands-on DIYer, this set provides the perfect range of sizes and performance features to make your drilling clean, fast, and accurate.

Key Features:

✔ Multiple Tip Diameter Sizes for Versatility
This center drill bits set includes 7 sizes: 1/2", 5/32", 1/4", 1/8", 3/8", 3/16", and 5/16". It's ideal for spotting holes and starting accurate drilling on materials ranging from soft metals to hardened steel. You’ll always have the right size on hand for your application.

✔ Made from 6542 High-Speed Steel (HSS)
Crafted from premium-grade 6542 HSS, these metalworking drill bits are built to resist wear and maintain sharpness longer. They withstand high speeds and tough materials like brass, aluminum, copper, iron, and steel.

✔ Precision 60° Countersink Blade Angle
The 60-degree tip design is ideal for accurate centering and spotting. Avoid misalignment or bit walking—get clean starts and professional results every time with these combined center and countersink drill bits.

✔ Multi-Purpose Application
Suitable for use with manual and CNC lathes, bench drills, and milling machines. Ideal for mechanics, machinists, metalworkers, and hobbyists. This set is your go-to choice for drilling pilot holes, countersinking, and centering workpieces for precision machining.

✔ Trusted by Pros and DIYers Alike
Whether you're working on automotive repairs, aerospace parts, or home hardware, these high-speed center drills are up to the challenge. Long-lasting and accurate, they meet the demands of professional use while remaining accessible for home workshops.


Usage Tips for Best Performance:

• Secure your workpiece tightly on the lathe to avoid wobble.

• Clean surface oxide and use proper lubrication before drilling.

• Drill approximately 2/3 the depth of the tapered section.

• Stop immediately at irregular sounds—correct issues before resuming.

• Clean bits after use and apply oil to prevent rust during storage.
  
  

  Specifications:

• Type: 7PCS Center Drill Bit Set

• Material: 6542 High-Speed Steel

• Blade Angle: 60 Degrees

• Shank Type: Straight

• Tip Sizes: 1/2", 5/32", 1/4", 1/8", 3/8", 3/16", 5/16"

• Applications: Steel, Aluminum, Iron, Brass, Copper
  
  

This combined countersink and spotting drill bit kit is a must-have for any serious metalworker. It offers professional-grade precision and performance in every hole you drill.