ZG
| diameter (D) | total length (L) | flute length (L1) |
| 0.50-1.20 | 36 | 14 |
| 1.35-1.50 | 40 | 18 |
| 1.55-1.70 | 43 | 20 |
| 1.75-1.90 | 46 | 22 |
| 1.95-2.10 | 49 | 24 |
| 2.15-2.35 | 53 | 27 |
| 2.40-2.65 | 57 | 30 |
| 2.70-3.00 | 61 | 33 |
| 3.10-3.30 | 65 | 36 |
| 3.40-3.70 | 70 | 39 |
| 3.80-4.20 | 75 | 43 |
| 4.30-4.70 | 80 | 47 |
| 4.80-5.30 | 86 | 52 |
| 5.40-6.00 | 93 | 57 |
| 6.10-6.70 | 101 | 63 |
| 6.80-7.50 | 109 | 69 |
| 7.60-8.50 | 117 | 75 |
| 8.60-9.50 | 125 | 81 |
| 9.60-10.60 | 133 | 87 |
| 10.70-11.80 | 142 | 94 |
| 11.90-13.20 | 151 | 101 |
| 13.30-14.00 | 160 | 108 |
| 14.50-15.00 | 169 | 114 |
| 15.50-16.00 | 178 | 120 |
| 16.50-17.00 | 184 | 125 |
| 17.50-18.00 | 191 | 130 |
| 18.50-19.00 | 198 | 135 |
| 19.50-20.00 | 205 | 140 |
ZG
Product performance:
Applicable to the drilling of 4 to 5 times the diameter,for stainless steel,mild steel ,aluminum,aluminum alloys,cast aluminum,copper,copper alloy and other materials.
With a high helix angle and sharp cutting edge,it avoids the generation of BUE,is applicable to high-performance drilling.
Enhanced drilled core and ordinary blade length,with its rigidity enhanced,it is applicable tofour to five times diameter of the drilling,as well as higher spindle speed and feeding speed,with the drill’s life time increased.
The processing procedure is efficient with a high degree of surface finish,and further processing is needless.
