R35 dome piloted reamer bit also known as reaming bit

The pilot section of the pilot reamer bit is inserted into an existing hole to ensure stability, while the reaming section enlarges the hole to the required diameter. It is widely used in applications that require high precision, such as foundation piling, tunneling, and geothermal drilling.

Pilot Reamer Bit Parameters

The parameters of the pilot reamer bit include diameter, length, weight, and the applicable type of drilling rig.

Specifications

R35 pilot reamer bit, also named R35 pilot reaming bit, diameter is 89 mm.
R35 pilot reamer bit, also named R35 pilot reaming bit, diameter is 102 mm.
R35 dome reamer bit, also named R35 dome reaming bit, diameter is 127 mm.

Technical Information of R35 Dome and Pilot Reamer Bit

Connection thread: R35
Head material: Tungsten carbide
Bit body material: High-strength alloy steel
Slag grooves: Distributed along the bit for chip removal and cooling
Head design: Spherical buttons
Diameter: 89 mm, 102 mm, and 127 mm
Gauge button angle: 35 degree
Gauge buttons: 12×12 mm and 12×13 mm
Center buttons: 3×10 mm and 3×13 mm
Weight: Ranges from 3.2 kg to 4.8 kg
Head manufacturing process: Hot-melt inlay technology
Other manufacturing processes: Full carburizing heat treatment, high-frequency treatment, and phosphating process

R35 dome piloted reamer bit also known as reaming bit

Reaming bit

D (mm)

D (inch)

Buttons Gauge

Buttons Centre

Gauge button angle

Thread

Order number

Weight (kg)

Pilot reaming bit

3 1/2

12 x12 mm

3 x 10 mm

35 degree

R35

B100-8915-5505

3.2

Pilot reaming bit

102

12 x 13 mm

3 x 10 mm

35 degree

R35

B100-0215-5505

3.6

Dome reaming bit

127

12 x 13 mm

3 x 13 mm

35 degree

R35

B107-2715-5505

4.8