6.40mm HSS HARDENED/GROUN D DRILL BLANK

These Series J400 HSS Drill Blanks are metric sized and manufactured from quality High Speed Steel (HSS). Each jobber length blank is fully hardened and ground all over for optimum resilience and strength. Accurately ground without back taper with a diameter tolerance of h8. Available in a variety of metric sizes.

Features and Benefits
• Accurately ground without a back taper
• Manufactured from High Speed Steel (HSS) for resilience
• Available in a variety of metric sizes to suit your needs
• Hardened and ground all over for enhanced durability

Typical Applications
• Gauging the diameter of a drilled hole or for forging custom tools and drill bits

Standards
• DIN 338