• Precision ground twist drill bit manufactured to DIN 338
• Heat and wear resistance properties
• Right hand cutting helix, type N flute
• 5% cobalt alloyed High Speed Steel
• Unique tip improves efficiency and eliminates walking

DESCRIPTION

• Suitable for portable or stationary drilling of high alloy content steels and metals with a tensile strength up to 1100N/mm2
• Heat and acid proof steel; cast; iron; bronze; welded seams
• Stainless and chrome nickel steels.
• Has a precision of 135§ point angle – enables self centering & eliminates walking
• The bit tip can be resharpened to restore profile and sharpness
• Has a Longer life & rapid drilling precision; ground twist and better debris
• Has diameter tolerance to h8 grade leading to accurate hole diameter
• Diameter: 7.0 mm
• Length: 109 mm
• Working Length: 69 mm