Wera 848 Hex Shank HSS Drill Bit

The Wera 848 HSS Metal Twist Drill Bit in 4mm is one of the most frequently called-upon sizes in metalworking, ideal for M4 clearance holes, general fabrication work, and precision drilling in steel, aluminium, and other metals. The split point tip provides an immediate, centred start, eliminating the need for a pilot hole in most applications.

Engineered from high speed steel with precisely calibrated material elasticity, this bit handles the stresses of regular metal drilling with ease, whilst the viscous-tempered body ensures it retains its cutting edge for longer. The ¼" hexagonal shank sits securely in any DIN ISO 1173-D 6.3 compatible holder, delivering efficient, direct power transfer from driver to cutting edge.

Features and Benefits:
• HSS with split point — no pilot hole required in most applications
• Finely-tuned elasticity for stress resistance and extended life
• Viscous-tempered construction for sustained cutting performance
• ¼" hex shank for secure, vibration-free chuck engagement
• Excellent concentricity for precise hole diameters

Contents:
848 HSS Metal Twist Drill Bits, 4 x 44mm

Specifications:
Diameter: 4mm
Overall Length: 44mm
Drive: ¼" Hex (DIN ISO 1173-D 6.3)