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| Specifications |
| Grade | ISO | Grain size | Cobalt content(%) | Hardness | Density | T.R.S | Applications Recommended |
| (um) | (HRA) | (g/cm³) | (N/m㎡) | ||||
| GD16 | K20 | 1.6 | 8 | 90 | 14.7 | ≥3500 | Silicon steel sheet, Upper die |
| GD22 | K30 | 1.6 | 11 | 88.5 | 14.3 | ≥3650 | Silicon steel sheet, Upper die Cold Rolling Plates, Upper die, Lower die |
| GD30 | K40 | 1.6 | 15 | 87 | 14 | ≥3800 | Silicon steel sheet and Cold Rolling Plates Upper die, Lower die |
| GD40 | K40 | 1.2 | 20 | 84.5 | 13.7 | ≥4200 | Suitable for stamping and cutting silicon steel sheet and Up and Down punch |
| GD05 | K10 | 0.8 | 6 | 91.5 | 14.9 | ≥3200 | For copper, aluminum, non-ferrous metal sheets |
| GD06 | K20 | 0.8 | 8 | 90.5 | 14.7 | ≥3600 | For copper and aluminum sheets |
| GD07 | K40 | 1 | 13 | 88.5 | 14.3 | ≥3850 | Fir copper and aluminum sheets etc |
| GD08 | K40 | 1 | 15 | 88 | 14 | ≥4000 | For EI, Spcc/Steel sheets etc |
| L | W | S |
| 200 | 200 | 10-45 |
| 150 | 150 | 10-45 |
| 150 | 130 | 10-45 |
| 150 | 100 | 10-45 |
| 150 | 80 | 10-45 |
| 120 | 120 | 10-45 |
| 100 | 100 | 10-50 |
| 100 | 50 | 10-50 |
| 100 | 45 | 10-50 |
| 80 | 55 | 10-50 |
| 80 | 40 | 10-40 |
| 70 | 35 | 5-40 |
| 45 | 25 | 5-20 |
| 35 | 19 | 5-20 |
| 20 | 20 | 5-20 |
| 18 | 13 | 5-20 |
| ... | ... | ... |
| product Picture |
| Some other products |
| transportation |
| OUR SERVICE |
| ☑ We will provide more precisely and efficiently manufacture and serve according to clients' drawings. |
| ☑ We have professional QC team to ensure your product more better. |
| ☑ Check the raw material before starting production. |
| ☑ Have the random inspection during the processing. |
| ☑ Make the 100% inspection before the shipments. |
| WHY ARE YOU CHOOSE US |
| ☑ We have been engaged in tapered cross bit for more than 20 years. |
| ☑ apered cross with conical pipe drilling perfect; |
| ☑ Reliable work, high cost performance; |
| ☑ Accurate the dimension of taper degree perfectly matches the rods; |
| ☑ High grade tungsten carbide inserts; |
| ☑ The drill bit is made of high quality steel and uses the most advanced CNC machinery and heat treatment process. |
| about uS |
| FAQ |
To work with us is your best choice !
