Dormer A7777.5 jobber drill bit in 7.50mm is designed for dependable metal drilling where you need a consistent, accurate hole size in a standard jobber length. The HSCo construction is suited to higher-heat drilling applications, helping maintain performance when working with tougher materials.
With a 69mm working length and 109mm overall length, this Dormer metal drill bit is a practical choice for workshop, fabrication and maintenance work where a straight, cylindrical shank is required.
Note: Supplied as 1 x 7.50mm jobber drill bit.
Key Features
HSCo (cobalt) drill bit: Built for drilling applications that generate higher heat, supporting durability in demanding metalwork.
7.50mm diameter: Ideal for creating clean, accurately sized holes for fixings, tapping preparation and clearance drilling.
Jobber length profile: A versatile all-round length for general workshop and site drilling tasks.
69mm working length: Helps reach through typical sections while maintaining control and stability.
109mm overall length: Provides practical reach without moving to long-series drill lengths.
Cylindrical shank: Compatible with standard keyed and keyless drill chucks that accept straight shank drill bits.
Specifications at a glance
Product typeJobber drill bit (metal)
Diameter7.50mm
Working length69mm
Overall length109mm
MaterialHSCo (cobalt steel)
Pack quantity1
Product weight0.029kg
GTIN/EAN7320760375464
Suitable applications
General drilling in metal for fabrication, fitting and maintenance tasks
Workshop and site use where a standard jobber-length drill is preferred
Creating accurate holes for fixings and hardware in metal sections