Item No.: TD1009
Diameter Range: Φ0.3–20 mm
Material: M35 (Cobalt High Speed Steel)
Process: Fully Ground
13-Piece Set: Φ1.5–6.5 mm
19-Piece Set: Φ1–10 mm
25-Piece Set: Φ1–13 mm
Specification
Twist drills can be used to cut hard metals such as stainless steel and cast iron, as well as softer materials
The straight-shank twist drill bit made of cobalt-containing high-speed steel is more wear-resistant and durable
Diameter Φ0.3-20mm optional, please see our size parameter table for details
Our twist drill bits meet DIN338 specifications
You can match the suit combinations of different diameters according to your needs
Fits standard drill chucks and regular round chuck chucks

| Size (d) | Flute Length (l) | Overall Length (L) | Size (d) | Flute Length (l) | Overall Length (L) | Size (d) | Flute Length (l) | Overall Length (L) | Size (d) | Flute Length (l) | Overall Length (L) |
| 0.3 | 3 | 19 | 4 | 43 | 75 | 8.2 | 75 | 117 | 12.5 | 101 | 151 |
| 0.4 | 5 | 20 | 4.2 | 43 | 75 | 8.5 | 75 | 117 | 12.7 | 101 | 151 |
| 0.5 | 6 | 22 | 4.5 | 47 | 80 | 8.8 | 81 | 125 | 13 | 101 | 151 |
| 0.6 | 7 | 24 | 4.8 | 52 | 86 | 9 | 81 | 125 | 13.5 | 108 | 160 |
| 0.8 | 10 | 30 | 5 | 52 | 86 | 9.2 | 81 | 125 | 14 | 108 | 160 |
| 1 | 12 | 34 | 5.2 | 52 | 86 | 9.5 | 81 | 125 | 14.5 | 114 | 169 |
| 1.2 | 16 | 38 | 5.5 | 57 | 93 | 9.8 | 87 | 133 | 15 | 114 | 169 |
| 1.5 | 18 | 40 | 5.8 | 57 | 93 | 10 | 87 | 133 | 15.5 | 120 | 178 |
| 1.8 | 22 | 46 | 6 | 57 | 93 | 10.2 | 87 | 133 | 16 | 120 | 178 |
| 2 | 24 | 49 | 6.2 | 63 | 101 | 10.5 | 87 | 133 | 16.5 | 125 | 184 |
| 2.2 | 27 | 53 | 6.5 | 63 | 101 | 10.8 | 94 | 142 | 17 | 125 | 184 |
| 2.5 | 30 | 57 | 6.8 | 69 | 109 | 11 | 94 | 142 | 17.5 | 130 | 191 |
| 2.8 | 33 | 61 | 7 | 69 | 109 | 11.2 | 94 | 142 | 18 | 130 | 191 |
| 3 | 33 | 61 | 7.2 | 69 | 109 | 11.5 | 94 | 142 | 18.5 | 135 | 198 |
| 3.2 | 36 | 65 | 7.5 | 69 | 109 | 11.8 | 94 | 142 | 19 | 135 | 198 |
| 3.5 | 39 | 70 | 7.8 | 75 | 117 | 12 | 101 | 151 | 19.5 | 140 | 205 |
| 3.8 | 43 | 75 | 8 | 75 | 117 | 12.2 | 101 | 151 | 20 | 140 | 205 |
FEATURED PRODUCTS