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8649A
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Orig. Hartner
STEP DRILLS FOR METALS, RIGHT-HAND ROTATION
twist drills with step tip, right hand cutting
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VERY HIGH PERFORMANCE type, MADE IN GERMANY.
DIN 338. Cutting angle 118°. Milled type in HSS SUPER-RAPID steel. SHORT model, with step geometry of the drill (from Ø 2.5 mm)up to 6 steps.
To create highly precise and perfectly spherical through holes in a very short time. Self-centering: pre-drilling and punching operations are avoided. It is possible to drill holes in an inclined position and to widen holes very quickly.
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For steel, cast iron, non-ferrous metals, plastics, Plexiglas and hardwoods. Ideal for use with hand drills.
Cylindrical shank with 3 flats (4 mm Ø) for better holding in the chuck.
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With stepped geometry of Ø 2.5 mm.
With 3-crossarms shank of Ø 4 mm.
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 Add to Cart
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Note | Cod. Art. | Cad. | Cod. Prod. | Ø
mm | Overall length
mm | Helix length
mm | Peso Art | QTAMIN |
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| 8649A 1 | € 0 | 81001 | 1 | 34 | 12 | 0.002 | 0 |
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| 8649A 1.5 | € 0 | 81001 | 1,5 | 40 | 18 | 0.002 | 0 |
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| 8649A 2 | € 0 | 81001 | 2 | 49 | 24 | 0.002 | 0 |
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| 8649A 2.5 | € 0 | 81001 | 2,5 | 57 | 30 | 0.002 | 0 |
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| 8649A 3 | € 0 | 81001 | 3 | 61 | 33 | 0.002 | 0 |
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| 8649A 3.2 | € 0 | 81001 | 3,2 | 65 | 36 | 0.003 | 0 |
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| 8649A 3.3 | € 0 | 81001 | 3,3 | 65 | 36 | 0.003 | 0 |
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| 8649A 3.5 | € 0 | 81001 | 3,5 | 70 | 39 | 0.004 | 0 |
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| 8649A 4 | € 0 | 81001 | 4 | 75 | 43 | 0.005 | 0 |
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| 8649A 4.1 | € 0 | 81001 | 4,1 | 75 | 43 | 0.006 | 0 |
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| 8649A 4.2 | € 0 | 81001 | 4,2 | 75 | 43 | 0.007 | 0 |
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| 8649A 4.5 | € 0 | 81001 | 4,5 | 80 | 47 | 0.008 | 0 |
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| 8649A 4.9 | € 0 | 81001 | 4,9 | 86 | 52 | 0.009 | 0 |
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| 8649A 5 | € 0 | 81001 | 5 | 86 | 52 | 0.01 | 0 |
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| 8649A 5.1 | € 0 | 81001 | 5,1 | 86 | 52 | 0.011 | 0 |
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| 8649A 5.2 | € 0 | 81001 | 5,2 | 86 | 52 | 0.012 | 0 |
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| 8649A 5.5 | € 0 | 81001 | 5,5 | 93 | 57 | 0.013 | 0 |
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| 8649A 6 | € 0 | 81001 | 6 | 93 | 57 | 0.015 | 0 |
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| 8649A 6.5 | € 0 | 81001 | 6,5 | 101 | 63 | 0.017 | 0 |
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| 8649A 6.8 | € 0 | 81001 | 6,8 | 109 | 69 | 0.019 | 0 |
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| 8649A 7 | € 0 | 81001 | 7 | 109 | 69 | 0.021 | 0 |
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| 8649A 7.5 | € 0 | 81001 | 7,5 | 109 | 69 | 0.027 | 0 |
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| 8649A 8 | € 0 | 81001 | 8 | 117 | 75 | 0.033 | 0 |
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| 8649A 8.5 | € 0 | 81001 | 8,5 | 117 | 75 | 0.039 | 0 |
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| 8649A 9 | € 0 | 81001 | 9 | 125 | 81 | 0.045 | 0 |
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| 8649A 9.5 | € 0 | 81001 | 9,5 | 125 | 81 | 0.057 | 0 |
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| 8649A 10 | € 0 | 81001 | 10 | 133 | 87 | 0.067 | 0 |
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| 8649A 10.2 | € 0 | 81001 | 10,2 | 133 | 87 | 0.087 | 0 |
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| 8649A 10.5 | € 0 | 81001 | 10,5 | 133 | 87 | 0.117 | 0 |
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| 8649A 11 | € 0 | 81001 | 11 | 142 | 94 | 0.147 | 0 |
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| 8649A 11.5 | € 0 | 81001 | 11,5 | 142 | 94 | 0.155 | 0 |
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| 8649A 12 | € 0 | 81001 | 12 | 151 | 101 | 0.17 | 0 |
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| 8649A 12.5 | € 0 | 81001 | 12,5 | 151 | 101 | 0.19 | 0 |
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| 8649A 13 | € 0 | 81001 | 13 | 151 | 101 | 0.237 | 0 |
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