COMOWARE 15Pcs Cobalt Drill Bit Set – M35 HSS, 1/16\"-3/8\", Jobber Length, Indexed Storage Case

Meet the COMOWARE 15Pcs Drill Bit Set, crafted from M35 cobalt HSS for enhanced resilience when piercing metal and other materials. The bits span a practical 15-piece range from 1/16\" to 3/8\" and come in a metal indexed case for quick selection and tidy storage.

Featuring a 5% cobalt alloy, these bits are built for wear and heat resistance, helping to keep cutting edges sharp longer under challenging tasks across stainless steel, cast iron, and hard alloys. The 135-degree split-point tips are self-centering, reducing wandering and easing initial penetration, while the twisted shank design helps clear chips efficiently as you work.

Key benefits at a glance

• 15-piece set covers common small to mid-size holes, with two copies of the 1/16\" and 1/8\" sizes and single pieces for the rest.
• Hard-wearing M35 cobalt HSS delivers better durability than standard high-speed steel on tough metals.
• 135-degree split point provides a self-centering start for more accurate drilling with less pressure.
• Jobber length with straight shank ensures compatibility with most drills and ease of use in project work.
• Metal indexed case keeps sizes visible and organized for quick tool selection on the job.

The set excels across materials including stainless steel, copper, cast iron, aluminum alloy, plastic, and wood, offering versatility for metalworking, DIY repairs, and workshop projects. While performance can vary by material and technique, users often notice longer tool life and steadier starts when using the appropriate speed and lubrication.

What you get

• 15 sizes: 1/16\" 2pc, 5/64\" 1pc, 3/32\" 2pc, 7/64\" 1pc, 1/8\" 2pc, 9/64\" 1pc, 5/32\" 1pc, 3/16\" 1pc, 7/32\" 1pc, 1/4\" 1pc, 5/16\" 1pc, 3/8\" 1pc

Practical usage notes: choose the smallest size that can meet your hole requirement, maintain steady feed pressure, and let the drill do the work. The indexed case helps you identify the right bit quickly, reducing setup time and keeping your workspace tidy.

Why this set stands out

COMOWARE's cobalt drill bits are designed for demanding metalworking tasks without sacrificing everyday utility. The combination of a robust alloy, precision tips, and thoughtful storage makes this set a reliable companion for both professional shops and hobbyist benches.