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HSS Twist Drill Bit, DIN338RN Cobalt 5%, 990 Series

HSS twist drill bit DIN338RN, Cobalt 5%, Fully Ground for professional drilling various steel, metal, alloy, iron, stainless steel, inox, etc.

135degrees split point for durable drilling performance with 5% cobalt up to hardness HRC64-68

Four times of tempering guarantee that professional drilling performance for professionals and industrial applications.

Quantity:
  • 990

1, HSS twist drill bit DIN338RN, Cobalt 5%, Fully Ground for professional drilling various steel, metal, alloy, iron, stainless steel, inox, etc.


2, 135degrees split point for durable drilling performance with 5% cobalt up to hardness HRC64-68


3, Four times of tempering guarantee that professional drilling performance for professionals and industrial applications.

 

Item Number
Diameter(mm)
Spiral flute length(mm)
Overall Length(mm)
990.3380051
0.5
6
22
990.3380061
0.6
7
24




























 

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