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Grąžtai · ANNO 1957Lithuanian manufacturer · Since 1957
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GRĄŽTAI / ANNO 1957

Stub-length straight-shank twist drills DIN 1897 Ti

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AB Grąžtai - Stub-length straight-shank twist drills DIN 1897 Ti

d - diameter;     l - flute length;     L - overall length.

  RN Ti
Cutting direction Right-hand Right-hand
Diameter, mm Ground: d=0.5–20.0 
Milled: d=2.0–10.0 
Ground: d=0.5–13.0 
Split-point: d=1.6–13.0 
Workpiece material For drilling carbon, alloy and structural steels and cast iron. For drilling hard materials, titanium and Ti-alloys, and stainless steels.

 

Diameter, mm L, mm I, mm Diameter, mm L, mm l, mm
0.50–0.52 20 3 3.80–4.25 55 22
0.55–0.60 21 3.5 4.30–4.70 58 24
0.62–0.65 22 4 4.76–5.30 62 26
0.68–0.75 23 4.5 5.40–6.00 66 28
0.78–0.85 24 5 6.10–6.70 70 31
0.88–0.95 25 5.5 6.75–7.50 74 34
0.98–1.05 26 6 7.54–8.50 79 37
1.10–1.15 28 7 8.60–9.50 84 40
1.19–1.30 30 8 9.52–10.60 89 43
1.35–1.50 32 9 10.70–11.80 95 47
1.55–1.70 34 10 11.90–13.00 102 51
1.75–1.90 36 11      
1.95–2.10 38 12      
2.15–2.35 40 13      
2.38–2.65 43 14      
2.70–3.00 46 16      
3.10–3.35 49 18      
3.40–3.70 52 20