MACXCOIP M35 Cobalt Drill Bit Set 1/4" (10pcs) — HSS Jobber Length, 135° Split Point

MACXCOIP 1/4" M35 cobalt drill bit set (10 pieces) is a durable, jobber-length HSS kit engineered to drill hard and soft metals with fast, accurate results.

Whether you work in a home garage, a metal fabrication shop or on-site repairs, this 1/4" M35 cobalt drill set delivers consistent performance for a wide range of materials. The bits combine high-speed steel with 5% cobalt to retain hardness at elevated temperatures, while the 135° split point and twist flute geometry improve centering and chip evacuation. Packaged in a compact, rugged case, the set keeps all ten bits organized and ready for use.

How does the M35 cobalt material improve drilling performance?

M35 cobalt alloy adds wear resistance and heat tolerance to standard HSS, making the bits last longer when cutting tougher metals. You’ll notice less dulling and fewer replacements compared with standard HSS bits, especially under higher speeds or intermittent drilling through stainless steel and cast iron.

• Contains 5% cobalt for higher red-hardness and durability
• Resists heat-related softening during high-speed drilling
• Maintains edge sharpness for more holes per bit

What makes the 135° point and twist design useful?

The split 135° point reduces walking at the hole start and centers the bit without a pilot hole, speeding up setup. The spiral flutes evacuate chips efficiently, helping preserve cutting edges and preventing clogging when penetrating metal or plastic.

• 135° point minimizes walk-off and improves centering
• Twist flutes channel chips away from the cutting edge
• Self-centering tip reduces the need for pilots on many materials

Which materials and tasks are these 1/4" bits suitable for?

These jobber-length bits are versatile: they reliably cut stainless steel, mild steel, cast iron, copper, aluminum, and common plastics and wood. They’re ideal for through-holes, clearance holes, and general-purpose metalwork where a 1/4" diameter is required.

• Stainless steel and ferrous metals — better wear resistance than plain HSS
• Non-ferrous metals like aluminum and copper — clean, fast holes
• Plastics and wood — usable when slower speeds and steady feed are applied

How is the kit packaged and how easy is it to store?

The ten 1/4" bits come in a compact, sturdy plastic case that keeps every piece organized and protected during transport. The case is small enough to fit in a toolbox or drawer and helps you quickly select a replacement bit when needed.

• Rigid case for organized storage and protection
• Clear layout makes inventory and selection fast on the job
• Compact footprint for easy toolbox or shelf storage

Who is this for: The MACXCOIP 1/4" M35 cobalt jobber-length set is aimed at tradespeople, fabricators, maintenance technicians and serious DIYers who need a reliable, long-lasting 1/4" drill option for metalwork and multi-material applications. If you frequently drill stainless steel or cast parts, or want a robust everyday 1/4" bit supply with minimal walking and good chip control, this set is a practical choice.