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

Long-series straight-shank twist drills DIN 340 RN

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AB Grąžtai - Long-series straight-shank twist drills DIN 340 RN

d - diameter;     l - flute length;     L - overall length.
  RN RH RW Ti
Cutting direction Right-hand Right-hand Right-hand Right-hand
Diameter, mm Ground: d=0.5–20.0 
Milled: d=2.0–10.0 		 Ground: d=0.5–20.0  Ground: d=0.5–20.0 
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 maching hard and brittle materials, gunmetal, brass, bronze. For drilling aluminium, aluminium alloys, copper, brass, bronze and soft plastics. For drilling hard materials, titanium and Ti-alloys, and stainless steels. 

 

Diameter, mm L, mm l, mm Diameter, mm L, mm l, mm
0.50–0.52 32 12 3.80–4.25 119 78
0.55–0.60 35 15 4.30–4.70 126 82
0.62–0.65 38 18 4.76–5.30 132 87
0.68–0.75 42 21 5.40–6.00 139 91
0.78–0.85 46 25 6.10–6.70 148 97
0.88–0.95 51 29 6.75–7.50 156 102
0.98–1.05 56 33 7.54–8.50 165 109
1.10–1.15 60 37 8.60–9.50 175 115
1.19–1.30 65 41 9.52–10.60 184 121
1.35–1.50 70 45 10.70–11.80 195 128
1.55–1.70 76 50 11.90–13.20 205 134
1.75–1.90 80 53 13.30–14.00 214 140
1.95–2.10 85 56 14.25–15.00 220 144
2.15–2.35 90 59 15.08–16.00 227 149
2.38–2.65 95 62 16.25–16.75 235 154
2.70–3.00 100 66 17.00–18.00 241 158
3.10–3.35 106 69 18.25–19.00 247 162
3.40–3.70 112 73 19.05–20.00 254 166