Dormer A108 Series HSS Twist Drill Bit, 5.5mm Diameter, 93 mm Overall

Dormer A108 HSS Split-Point Jobber Drill Bits. Introducing the A108 series of high-quality, industrial HSS Split-Point Jobber Drill Bits from Dormer. The professional Drill Bits have been manufactured from premium-quality, tempered HSS steel. Drill Bits have been specifically designed for stainless steel machining and feature 135° point angle for maximum accuracy and precise application. Easy to read size markings are engraved on the side of each drill bit. Drill's helix has been redesigned for greater stiffness. Dormer A108 professional general-purpose drills are suitable for both hand and machine use and are ideal for drilling into austenitic stainless steel, cast steel, grey cast iron, malleable cast iron, nickel-brass, aluminium alloy and graphite, plastic etc. (Not suitable for masonry applications). Dormer A108 series drill bits are available in size range from 1 mm up to 13mm: A108 HSS jobber drill 1mm - ; 794-7498 794-7498 A108HSS jobber drill 1.5mm - ; 794-7492 794-7492 A108 HSS jobber drill 2mm - ; 794-7502 794-7502 A108 HSS jobber drill 2.5mm - ; 794-7505 794-7505 A108 HSS jobber drill 3mm - ; 794-7509 794-7509 A108 HSS jobber drill 3.3mm - ; 794-7518 794-7518 A108 HSS jobber drill 3.5mm - ; 794-7511 794-7511 A108 HSS jobber drill 4mm - ; 794-7515 794-7515 A108 HSS jobber drill 4.2mm - ; 794-7524 794-7524 A108 HSS jobber drill 4.5mm - ; 794-7527 794-7527 A108 HSS jobber drill 5mm - ; 794-7521 794-7521 A108 HSS jobber drill 5.5mm - ; 794-7530 794-7530 A108 HSS jobber drill 6mm - ; 794-7533 794-7533 A108 HSS jobber drill 6.5mm - ; 794-7537 794-7537 A108 HSS jobber drill 6.8mm - ; 794-7546 794-7546 A108 HSS jobber drill 7mm - ; 794-7549 794-7549 A108 HSS jobber drill 7.5mm - ; 794-7543 794-7543 A108 HSS jobber drill 8mm - ; 794-7552 794-7552 A108 HSS jobber drill 8.5mm - ; 794-7555 794-7555 A108 HSS jobber drill 9mm - ; 794-7559 794-7559 A108 HSS jobber drill 9.5mm - ; 794-7568 794-7568 A108 HSS jobber drill 10mm - ; 794-7561 794-7561 A108 HSS jobber drill 10.2mm - ; 794-7565 794-7565 A108 HSS jobber drill 11mm - ; 794-7574 794-7574 A108 HSS jobber drill 12mm - ; 794-7577 794-7577 A108 HSS jobber drill 13mm - ; 794-7571 794-7571. Features and Benefits:. Features self-centring split-point for excellent positional accuracy and hole quality Quick spiral helix enables rapid swarf removal Drills up to 4xDiameter in steel, stainless, cast iron, plastics and many other materials with ease Blue surface treatment Suitable for both hand and machine use 135° point angle design for maximum accuracy of application. Approvals and Certification:. DIN338RN ISO235 BS328. Typical Application:. These bits are ideal for fast drilling of a plug, anchor or clearance holes in a number of materials such as steel, plastic, wood, metal etc. This makes it an essential piece of kit to have if you work within the carpentry/construction/engineering industries to save time and money on being able to perform more efficiently when working with stubborn materials. FAQs:. ;i>Can these drill bits be used with any SDS drill? ;/i> No, they are standard drills, will not fit into SDS chuck ;i>What does jobber mean? ;/i> 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. ;i>What is HSS? ;/i> 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.