SD 4 DHD 340 M40 QL 40 TD 40 High Quality Dth Mining Drilling Bit

In DTH drilling, the rock drilling bit is a continuation of the shank, which the rock drill piston strikes directly. Since the piston is in direct contact with the drill bit, little energy is lost. This gives DTH drilling a nearly constant penetration rate regardless of hole length.

Products Details

Product overview
 TDS is in the position to offer a very comprehensive range of DTH drill bits to match various conceivable drilling applications. DTH (Down the Hole) drill bits, also called spline connected drill bit, are widely used for large scale mine (open and underground), open quarry, water-well drilling, tunnel, geothermal drilling, subway engineering drilling, roads, power stations, and other construction projects. Our drill bits adopt special heat treatment technology to enhance hardness, surface-compressed for fatigue resistance, all thus to extend the product life for maximum wear and performance in the toughest of drilling conditions.
Specification
Model
Thread Connection
OD(mm)
Rec.Hole Size
Shank Style
Working Pressure(Bar)
CD35
API 2 3/8" Reg
φ82mm
φ90-φ105
DHD3.5

CD35
1.0-1.5Mpa
CD45
API 2 3/8" Reg
φ99mm
φ110-φ135
Cop44

DHD340
CD45
1.0-2.5Mpa
CSD4
API 2 3/8" Reg
φ99mm
φ110-φ135
SD4

CSD4
1.0-2.5Mpa
CQL40
API 2 3/8" Reg
φ99mm
φ110-φ135
QL40

CQL40
1.0-2.5Mpa
CD55
API 2 3/8" Reg

API 3 1/2" Reg
φ125mm
φ135-φ155
Cop54

DHD350R
CD55
1.0-2.5Mpa
CSD5
API 3 1/2" Reg
φ125mm
φ135-φ155
SD5

CSD5
1.0-2.5Mpa
CQL50
API 3 1/2" Reg
φ125mm
φ135-φ155
Cop54

QL50
CQL50
1.0-2.5Mpa
CD65
API 3 1/2" Reg
φ148mm
φ155-φ190
Cop64

DHD360
CD65
1.0-2.5Mpa
CSD6
API 3 1/2" Reg
φ148mm
φ155-φ190
SD6

CSD6
1.0-2.5Mpa
CQL60
API 3 1/2" Reg
φ148mm
φ155-φ190
Cop64

QL60
CQL60
1.0-2.5Mpa
CD85
API 4 1/2" Reg
φ185mm
φ195-φ254
Cop84

DHD380
CD85
1.0-2.5Mpa
CSD85
API 4 1/2" Reg
φ185mm
φ195-φ254
SD8

CSD8
1.0-2.5Mpa
CQL80
API 4 1/2" Reg
φ185mm
φ195-φ254
QL80

CQL80
1.0-2.5Mpa
CSD10
API 4 1/2" Reg

API 5 1/2" Reg
API 6 5/8" Reg
φ225mm
φ254-φ311
SD10

CSD10
1.0-2.5Mpa
CN100
API 6 5/8" Reg
φ225mm
φ254-φ311
NUMA100

CN100
1.0-2.5Mpa
CSD12
API 6 5/8" Reg
φ275mm
φ305-φ445
SD12

CSD12
1.0-2.5Mpa
Packing

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