BeHappy Cobalt Drill Bit Set 3/16″

What matters most

If you need one drill-bit size for a particular job, rather than a case of assorted sizes, this BeHappy set is centred on 3/16″ bits. It includes ten M35 cobalt high-speed steel bits, with a 135° split-point tip and an index storage case. The listed uses cover hardened metal, stainless steel, cast iron, wood and plastics, so it may suit a mixed-material toolbox—provided this is the size you need.

The split point is designed to self-centre, reduce thrust and help the bit enter the material. Keep in mind that this is a 3/16″ set, not a range of sizes, it won’t help much if your project calls for a different diameter. The listed flute length is 2-5/16″ (58.74 mm), and the diameter is also given as 4.76 mm.

How to use it

Choose the bit for a job where 3/16″ is the required diameter, then match it to the material you’re drilling. For example, if you’re working through stainless steel and then need the same size for a hole in wood, the stated material range makes this set relevant to both tasks. Its 135° split-point tip is intended to make starting easier, while the twist design helps carry chips out of the hole.

The M35 HSS construction is described as containing 5% cobalt, with heat, wear and chip resistance cited as benefits. Treat those as the manufacturer’s stated advantages rather than a guarantee that every bit will suit every material or drilling setup. The set does not provide details about recommended speeds or other operating guidance.

Practical tips

Before starting, check that 3/16″ matches the hole you need, a centred tip won’t make the wrong diameter useful. Keep the bits together in the included index storage case so the size is easier to identify between jobs. A practical example: if you’re switching from a metal task to a small wood or plastic project, the case keeps this set available without requiring a mixed-size assortment.

The product description says the tips are hardened and polished for sharpness and precise cutting. That may appeal if you want a dedicated set for repeated use, but the listing doesn’t specify how many holes the bits will make or how they perform under particular conditions. It is a good option if you already know that 3/16″ is the size you use across the listed materials. It may not suit you if you need several diameters or want detailed drilling instructions included.

For your situation

This set is aimed at buyers who want multiple bits in one stated size and expect to work with materials ranging from wood and plastics to harder metals. Compared with buying a mixed-size kit, it focuses on keeping ten 3/16″ bits together, compared with choosing a single bit, it provides spares of that same listed size. That distinction matters more than the broad material list when deciding whether it fits your toolbox.

Buying questions

What size are the bits? The listed diameter is 3/16″ (4.76 mm), with a flute length of 2-5/16″ (58.74 mm).

What materials are they listed for? The description names hardened metal, stainless steel, cast iron, wood and plastics.

Does the set include storage? Yes. An index storage case is included, according to the product description.