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

Jobber-length straight-shank twist drills DIN 338 Ti

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AB Grąžtai - Jobber-length straight-shank twist drills DIN 338 Ti

d - diameter;     l - flute length;     L - overall length.
  RN RH RW Ti GT-100 Ln
Cutting direction Right-hand Right-hand Right-hand Right-hand Right-hand Left-hand
Diameter, mm Ground: d=0.3–20.0 
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 
 Ground: d=3.0–13.0 Ground: d=2.0–10.0 
Workpiece material For drilling carbon, alloy and structural steels and cast iron. For drilling 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. For drilling unalloyed and alloyed steels (tensile strength up to approx. 1000 N/mm2) and cast iron. For drilling carbon, alloy and structural steels and cast iron.

 

Diameter, mm L, mm I, mm Diameter, mm L, mm I, mm
0.50–0.52 22 6 3.80–4.25 75 43
0.55–0.60 24 7 4.30–4.70 80 47
0.62–0.65 26 8 4.76–5.30 86 52
0.68–0.75 28 9 5.40–6.00 93 57
0.78–0.85 30 10 6.10–6.70 101 63
0.88–0.95 32 11 6.75–7.50 109 69
0.98–1.05 34 12 7.54–8.50 117 75
1.10–1.15 36 14 8.60–9.50 125 81
1.19–1.30 38 16 9.52–10.60 133 87
1.35–1.50 40 18 10.70–11.80 142 94
1.55–1.70 43 20 11.90–13.20 151 101
1.75–1.90 46 22 13.30–14.00 160 108
1.95–2.10 49 24 14.25–15.00 169 114
2.15–2.35 53 27 15.08–16.00 178 120
2.38–2.65 57 30 16.25–16.75 184 125
2.70–3.00 61 33 17.00–18.00 191 130
3.10–3.35 65 36 18.25–19.00 198 135
3.40–3.70 70 39 19.02–20.00 205 140