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Twist Drill bit HSCO ASME B94.11M TYPE RN
Twist drill bit HSCo ANSI type RN bronze REDSTRIPE
DRL-TWST-MET-ANSI-HSCO-SK-D21/64INCH
REDSTRIPE
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Quick drilling
- Web thinning ensure less friction during drilling and therefore less feed force needed.
- The sturdy point grinding with short designed working length enable quick drilling by using cordless and wired drill at construction site and in assembly.
- Highly efficient chip removal
Self-centering
The crosswise grinding ensures an excellent centering effect even on domed surfaces, eliminating the need for center-punching or piloting
Good cutting performance
Cutting material HSCo (M35) contains 5% cobalt provides higher heat resistance and hardness for meeting tough requirements.
Datasheets(X)
Steel & stainless steel
Material to be processed | Stainless steel |
Standard / drilling depth | ANSI B 94.11M / 6xD |
Diameter (Ø) | 21/64 in |
Length (l1) | 4-5/8 in |
Chip flute length (l2) | 3-5/16 in |
Shank style | Cylindrical |
Surface | Vaporised |
Cutting material | HSCo |
Angle of the tip | 130 Degree |
Service life (points system) | 3 of 4 points |
Drilling speed (point system) | 2 of 4 points |
Bore hole quality (point system) ( ) | 2 of 4 points |
Versatility (points system) | 3 of 4 points |
Drilling behaviour (point system) | 3 of 4 points |
Suitable for drill (points system) | 2 of 4 points |
Suitable for cordless drills (points system) | 2 of 4 points |
Suitable for upright drilling machine (points system) | 1 of 4 points |
Self-centring | Yes |
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