Q7-38-12 22-50 tapered button bits
Diameter: 38mm
Body length : 50mm
Face: Flat, 1 front flushing hole and 1 side flushing hole
Carbide Design: Semi-Ballistic
Hardness : 47-49HRC
Carbide size: 2*7mm /5*9mm
Carbide Brand and grade : ZCC /YK05
Steel grade : 45CrNiMoVa
Performance :All-round drill bit for medium hard to hard
rock formations. Front and side flushing. Diameters from 32mm to 43mm. Air jack hammer :YT27 YT28 YT29A are available for this type bit.
Cemented Carbide Specification
| Grade | Com | Density | Hardness | Coercive force |
| YK05 | 5.70% | 14.94 g/cm³ | 1440 HRA/HV3 | 11.9 KA/m |
Following are products pictures
Package: 50 pcs in one plastic box , box size : 47CM*23CM*8CM
Pablo Villalpando –
Good product. I really like it so much.