Anchor Self Drilling Rock Hollow Diamond Core Drill Bit R38 TC Drop Center Bit EYY

Anchor Self Drilling Rock Hollow Core Diamond Drill Bits R38 TC Drop Center Bit EYY

OED self drilling anchor system is a bolting solution for difficult ground and rock conditions. The system enables drilling and grouting in one operation, making much saving in jobsite and project time.

Specifications of our SDA drilling bits R38/90mm

Thread:R38

Diameter:90mm

Tunnelling Ground engineering

1. Face stabilization

2. Radial systematic anchoring

3. Foundation for avalanche protect

4. Stabilization of tunnel portals

5. Spilling

6. Root piling

Bits type:

EX: Hardened cross bit for loose to medium dense ground conditions
ES: Hardened button bit for unconsolidated rock with boulders
EC: Hardened arch bit for unconsolidated soil with small boulders
EY: Hardened 3 cutters bit for loose to medium dense ground conditions
EXX: T.C cross bit for soft to medium rock formations
ESS: Button bit with T.C inserts for medium rock formations
ECC: T.C arch bit for soft to medium rock formations
EYY: T.C 3 cutters bit for soft to medium rock formations
Clay bits: Casted clay bit for Soft clay and soil

Anchor bit diameter to choose:

self drilling rock bolts

rock anchor bolts

Dia.

42

51

76

90

100

115

130

150

175

220

250

280

300

350

R25

√

√

R32

√

√

√

√

R38

√

√

√

√

√

R51

√

√

√

√

√

√

T76

√

√

√

√

√

T30

√

√

T40

√

√

√

√

T52

√

√

√

√

√

√

T73

√

√

√

√

Anchor Self Drilling Rock Hollow Diamond Core Drill Bit R38 TC Drop Center Bit EYY Images