What people love (and don’t love)
What people love
- High durability and sharpness, suitable for drilling stainless steel and other hard metals.
- Good value for the price, with a 10-pack offering multiple uses for various projects.
- Works well with cutting oil and at slow speeds for effective drilling.
- Positive seller responsiveness, including quick refunds when issues arose.
- Sturdy and reliable performance on metal, including bronze and metal studs.
What people don’t love
- Variability in durability; some bits wore out after only a few holes.
- Packaging issues with mislabeled sizes causing confusion.
- Some users experienced bits that broke or lost effectiveness quickly when drilling very hard materials.
Reliable and sharp drill bits that offer excellent value for most metal drilling tasks, though quality may vary slightly.
Summary based on customer review evidence.
Quick facts
- Brand: DelitonGude
- Price: USD 12.99
- Rating: 4.40 (763 reviews)
The DelitonGude 1/8" M35 cobalt HSS twist drill bit set is built for drilling into tough materials where standard bits can struggle. Made from high-speed steel with 5% cobalt, these bits are designed for work on steels, cast iron, stainless steels, and other hard metals.
You can view the current price and full details on Amazon here.
Each bit features a 135° split point to help reduce walking and improve self-centering at the start of the hole. A spiral flute design helps move chips out efficiently, and the black oxide finish supports wear resistance for repeated use. This 10-pack is a practical pick for both DIY users and pros who want multiple identical bits on hand for maintenance, repair, and shop work.
What’s included: 10 pieces, 1/8" cutting diameter (0.13 in). Approx. 2.56 in overall length.
- M35 high-speed steel with 5% cobalt construction for drilling hard metals
- 1/8" (0.13 in) cutting diameter; 10-piece pack for backups and repeat jobs
- 135° split point helps self-center and reduce bit walking
- Spiral flute design supports chip removal while drilling
- Black oxide finish; straight shank for common drill/drill press setups
Note: The manufacturer recommends using a drill press and controlling RPM when drilling hard metal. Not for glass or ceramic materials.
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