Double ended drill bit HSS TIN WN type RN
HSS WN type RN double-ended drill bit, TiN head
DBENDDRL-MET-WN-HSS-TH-D4,0MM
ZEBRA
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Precise drilling
The sturdy twist drill with its short design provides for quick drilling
Self-centering
The crosswise grinding ensures an excellent centering effect even on round materials, eliminating the need for center-punching or piloting
Long tool life
Thanks to HC (High Speed Cutting) grinding and the related precise cutting geometry, a constant drilled-hole quality is ensured with simultaneous high precision and a long tool life
TIN (Titan-Nitrid) coated
HSS Steel has a maximum application temperature of 400º. The TIN coating increase the heat resistance up to 600º, which causes up to 3 times more tool life in comparison with a none coated HSS drill
Datasheets(X)
Steel
Material to be processed | Steel |
Diameter (Ø) | 4.0 mm |
Length (l1) | 55 mm |
Chip flute length (l2) | 14 mm |
Shank style | Cylindrical |
Surface | TiN |
Cutting material | HSS |
Type | RN |
Angle of the tip | 118 Degree |
Service life (points system) | 3 of 4 points |
Drilling speed (point system) | 3 of 4 points |
Bore hole quality (point system) ( ) | 3 of 4 points |
Versatility (points system) | 2 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) | 2 of 4 points |
Suitable for milling-drilling centre (points system) | 2 of 4 points |
Self-centring | Yes |
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