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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 LN

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

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
2.00–2.10 49 24
2.15–2.35 53 27
2.38–2.65 57 30
2.70–3.00 61 33
3.10–3.35 65 36
3.40–3.70 70 39
3.80–4.25 75 43
4.30–4.70 80 47
4.76–5.30 86 52
5.40–6.00 93 57
6.10–6.70 101 63
6.75–7.50 109 69
7.54–8.50 117 75
8.60–9.50 125 81
9.52–10.00 133 87