Dormer 54-Piece Twist Drill Bit Set for Multi-Material, 13mm Max, 1mm Min, HSS Bits

Introducing the Dormer 0915 series 54-pieces Drill Bit Set made from HSS for high-performance, offering more resistance than high carbon steel bits. It contains a great selection of the most commonly used metric & imperial diameters from 1mm to 13 mm in 0.5 mm increments and 1/16" to 1/2" in 1/64" increments. These High-Speed Steel (HSS) drill bits are constructed from a single piece of high-speed steel, thus reducing breaking and blunting under heat or stress. Manufactured in accordance with DIN 328 for high precision tolerances and geometric accuracies. The set is supplied in a stylish metal case which fans out automatically when open.

• Ground flute for a longer life than equivalent roll forged bits

• BS328/DIN

A good selection of all types of drill bits guarantees the job done quickly and easily. Using the right bits type to drill into a variety of materials ensures safety and reduces the drilling time.

What is HSS?
An acronym for High-speed steel, HSS is generally the go-to type of steel needed for drill bits due to their excellent heat resistance at high speeds. As a standard drill can spin upwards of around 500 - 700rpm, the friction can cause a substantial build-up of heat. Something which would not be wanted when working with wood and plastic.

What sizes are included in the set?
The set includes 54 drill bits in metric and imperial sizes (29 Drill Pieces; 1 - 13 mm; 0.5 mm Steps; 25 Drill Pieces 1/16 in. - 1/2 in.; 1/64 in. Steps)

Can these drill bits drill into metal?
Yes, these drill bits are suitable for most drilling applications including drilling in metal.

What does jobber mean?
The word jobber specifies the length of the drill bit. This generally means the length of the entire drill bit itself is significantly longer for diameter it has. As an example, a mechanic drill bit will have a much shorter flute and therefore have a much smaller overall length.

Is this set suitable for domestic use?
Yes - this is a great multi-purpose drill bit set for domestic use, however, better performance can be achieved in a professional application.