Wera 847 Hex Shank Tapping Drill Bit

The Wera 847 HSS Combined Tapping Drill Bit in 6.8mm is built for producing M8 threads — a robust, widely-used thread size across structural, mechanical and industrial applications. Combining drilling, tapping and deburring in one pass, it keeps workflow fast and tool changes to a minimum.

Manufactured from high speed steel (HSS), this bit is designed to perform consistently in demanding conditions. The finely-tuned material elasticity provides resistance to fatigue, whilst the precise centring ensures each hole is started accurately. Effective chip removal prevents clogging during deeper cuts, and the secure ¼" hexagonal shaft interface — conforming to DIN ISO 1173-D 6.3 — ensures excellent torque transfer, reducing the effort required to cut clean, accurate M8 threads.

Features and Benefits:
• HSS construction for outstanding durability
• ¼" hex shaft for very good power transfer
• Finely-tuned material elasticity for great durability
• Excellent centring properties for accurate drilling
• Perfect chip removal for a clean, efficient cut
• Low tilt risk for controlled working
• Precise return movement

Contents:
847 HSS Combined Tap Bit, 6.8mm x 51mm x M8

Specifications:
Drill Diameter: 6.8mm
Overall Length: 51mm
Thread Size: M8
Drive: ¼" Hexagon (DIN ISO 1173-D 6.3)
Material: HSS