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Email: sales@prodrill.com.cn
Tel:0086-18959243380
Addr: Room 805 C1 Wanda Plaza, No.5 Jinzhong Road, Huli District, Xiamen, China
Q7-38-12 22-50 tapered button bits (Tophammer)
- 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 |
Steel grade : 45CrNiMoVa , steel certivfacate of quality 40 mm Round steel bar used for 38mm tapered bit
Following are products pictures
Package: 50 pcs in one plastic box , box size : 47CM*23CM*8CM
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