Dormer 5 Piece Multi-Material Twist Drill Bit Set, 1 1/2in to 2 1/2in

Introducing the Dormer A296-225 set of professional HSS drill bits designed with spiral flutes and various lengths and forms to give maximum performance and excellent-quality centre holes that suit most applications. Bits are suitable for a multitude of jobs and materials feature a straight shaft compared to that can be used in both hand and machine drills. Suitable for drilling metal, wood and plastic along with a range of other materials, HSS drill bits feature right-hand cutting tip with 120° cutting angle. This set has been manufactured with the high-quality and safety of use in mind to meet the requirements of both professionals and serious DIY enthusiasts. The set is supplied in a handy plastic case.

• Titanium coated High-Speed Steel for increased cutting speeds, reduced flank and lower friction levels
• The optimised blade design makes these bits easy to use allowing for more precise use
• Suitable for a wide range of screwdriver and drilling applications
• The drill bits are presented in a stylish handy plastic storage case
• Straight shaft shape for increased versatility and ease of use
• Right angle cutting tip with 60° countersink angle (centre) and 120° point angle
• Improved flute geometry for efficient chip evacuation

• BS328: Part 2:1986
• DIN333A
• ISO866
• ISO2540
• ISO2541

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.

Whether drilling wood, masonry, acrylic, metal or any number of other materials, having the drill bit for the job will give you the ability to drill with confidence and accuracy. Some drill bit sets will offer a mix of bit type to cover all types of jobs from wood and metal through to masonry, with some also including more specific bit types such as flat wood drill bit or countersinks. Drill Bit Sets are used by professional electricians, builders, plumbers, roof installers, etc. and DIY enthusiasts.

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 5 drill bits:
• A225BS1 / Size: BS1 / Length: 1 1/2"
• A225BS2 / Size: BS2 / Length: 1 3/4"
• A225BS3 / Size: BS3 / Length: 2"
• A225BS4 / Size: BS4 / Length: 2 1/4"
• A225BS5 / Size: BS5 / Length: 2 1/2"

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.