1.)HSS brown and black twist drill bits
2.)fully ground, DIN338,
3.)Split point.
4.) M2, HSS9341, 4341
5.) ISO9001
Port: shanghai or ningbo
Minimum Order Quantity: 500 Piece/Pieces
Supply Ability: 500000 Set/Sets per Month
Payment Terms: L/C,D/P,T/T
Contact SupplierPackaging Detail: 10pcs/5pcs packed in plastic box, then in paper box, then in export carton or 10pcs/5pcs packed in paper box, or each pc in blister card.
Delivery Detail: 35 days
1.)HSS brown and black twist drill bits
2.)fully ground, DIN338,
3.)Split point.
4.) M2, HSS9341, 4341
5.) ISO9001
*Metal drill bits roll forged from solid heat resistant high speed steel produced according to DIN338. Black-oxided finished. With 118o angle tip for fast drilling
*Suitable for drilling various metal, iron , wood, plastic, and non-ferrous metal with tensile strengths over 890N/mm2
*HSS 4341, Fully Ground.
*0.5mm-2.8mm diameter ones without size stamp on the shank.
| Diameter(mm) | Overall Length | Spiral Flute Length | Diameter(mm) | Overall Length | Spiral Flute Length |
| 0.50 | 22 | 6 | 5.80 | 93 | 57 |
| 0.60 | 24 | 8 | 6.00 | 93 | 57 |
| 0.70 | 28 | 9 | 6.20 | 101 | 63 |
| 0.80 | 30 | 10 | 6.50 | 101 | 63 |
| 0.90 | 32 | 11 | 6.80 | 109 | 69 |
| 1.00 | 34 | 12 | 7.00 | 109 | 69 |
| 1.20 | 38 | 16 | 7.20 | 109 | 69 |
| 1.50 | 40 | 18 | 7.50 | 109 | 69 |
| 1.80 | 46 | 22 | 7.80 | 117 | 75 |
| 2.00 | 49 | 24 | 8.00 | 117 | 75 |
| 2.20 | 53 | 27 | 8.20 | 117 | 75 |
| 2.50 | 57 | 30 | 8.50 | 117 | 75 |
| 2.80 | 61 | 33 | 8.80 | 125 | 81 |
| 3.00 | 61 | 33 | 9.00 | 125 | 81 |
| 3.20 | 65 | 36 | 9.20 | 125 | 81 |
| 3.50 | 70 | 39 | 9.50 | 125 | 81 |
| 3.80 | 75 | 43 | 9.80 | 133 | 87 |
| 4.00 | 75 | 43 | 10.00 | 133 | 87 |
| 4.20 | 75 | 43 | 10.50 | 133 | 87 |
| 4.50 | 80 | 47 | 11.00 | 142 | 94 |
| 4.80 | 86 | 52 | 11.50 | 142 | 94 |
| 5.00 | 86 | 52 | 12.00 | 151 | 101 |
| 5.20 | 86 | 52 | 12.50 | 151 | 101 |
| 5.50 | 93 | 57 | 13.00 | 151 | 101 |