toolant 108Pcs Cobalt Drill Bit Set for Metal and Steel, 1/16"-1/2"

The toolant 108-piece drill bit set provides a comprehensive range of fractional bits designed specifically for demanding materials like steel and stainless steel. Made from heat-treated M35 cobalt steel, these bits offer strong wear and rust resistance, providing a lifespan up to three times longer than standard high-speed steel alternatives. The set covers everything from 1/16-inch up to 1/2-inch, making it a complete setup for metalworking, automotive repairs, woodworking, and general construction.

Drilling accuracy starts at the tip, where a 135-degree self-centering point bites directly into the surface without wandering or requiring a center punch. This tip geometry produces clean, round holes while keeping runout to a minimum. Below the tip, an optimized flute profile rapidly channels metal chips away from the cutting zone, actively reducing heat accumulation so bits stay sharp through extended drilling tasks.

Organization and protection are well considered for a set this large. Every individual bit comes sealed inside its own plastic pouch to guard against rust and moisture before first use, and each piece features clear size markings for immediate identification. The whole collection fits into a durable, compact case suitable for crowded job sites or home workshops, ensuring high-use sizes stay organized and ready.

When weighing trade-offs, note the heavy distribution toward smaller fractional sizes. While you receive 15 pieces of each high-breakage size from 1/16-inch to 1/8-inch, the largest sizes (7/16-inch and 1/2-inch) include only a single piece each. Additionally, the manufacturer does not specify whether the shanks are fully round or feature flats for reduced chuck slipping.

Verdict: This set is an excellent investment for tradespeople and dedicated DIYers who frequently drill tough metals and want abundant spare bits in standard smaller sizes. If you need dependable M35 cobalt performance across a full fractional range, it provides solid long-term value.

• Piece Count: 108 pieces
• Material: Heat-treated M35 cobalt steel
• Point Angle: 135-degree self-centering point
• Size Range: 1/16 inch to 1/2 inch
• Target Materials: Metal, stainless steel, wood
• Packaging: Individual sealed bags inside a compact carrying case

A great fit if you:

• Regularly drill into hard metals like stainless steel and need wear-resistant M35 cobalt bits.
• Frequently break small drill bits and want multiple backup replacements for sizes 1/8 inch and below.
• Work across diverse automotive, construction, or DIY projects requiring a broad fractional size range.

Consider something else if you:

• Only need a basic, minimal kit for occasional soft-wood drilling around the home.
• Require multiple backups of large-diameter bits like 7/16-inch or 1/2-inch.

What materials can these drill bits cut through?
They are engineered to drill tough metals such as steel and stainless steel, and they are also suitable for automotive, construction, and woodworking tasks.

How many duplicate bits are included for the smallest sizes?
The set provides 15 pieces each for 1/16-inch, 5/64-inch, 3/32-inch, and 1/8-inch sizes, offering plenty of replacements for high-use, narrow bits.

How are the bits protected against rust during storage?
Each drill bit is packed in an individual sealed plastic pouch for moisture protection, and the set is housed in a compact, durable case.

What type of drill point does this set feature?
The bits utilize a 135-degree self-centering point designed to start drilling without wandering and ensure clean hole cuts.