Wera 848 Hex Shank HSS Drill Bit

The Wera 848 HSS Metal Twist Drill Bit in 4.2mm is an ideal choice for M5 tapping preparation, offering the precise undersize diameter needed to produce clean, well-formed threads in steel and other metals. The HSS split point tip cuts cleanly on contact without skating, ensuring accurate hole placement every time.

With finely-tuned material elasticity engineered into the HSS body, this bit absorbs torsional stress during drilling, extending service life and maintaining dimensional accuracy. Viscous tempering adds further resilience to the cutting edges. The ¼" hex shank ensures a secure, slip-free connection to DIN ISO 1173-D 6.3 compatible holders, making it equally suited to hand drills and power drivers.

Features and Benefits:
• HSS with split point — ideal for tapping preparation and precision work
• Finely-tuned elasticity manages stress for a longer working life
• Viscous-tempered for toughness and edge retention
• ¼" hex shank for reliable, rattle-free power transfer
• Excellent concentricity for precise, consistent hole quality

Contents:
848 HSS Metal Twist Drill Bits, 4.2 x 45mm

Specifications:
Diameter: 4.2mm
Overall Length: 45mm
Drive: ¼" Hex (DIN ISO 1173-D 6.3)