R25 R28 R32 R38 Thread Bit

Threaded bit by connecting bit’s pants body thread and thread drill rod to achieve percussive and rotary transmission, then drill rock broken out. The use of advanced gear forming technology and optimized product design, mainly used for roadway driving, underground, open pit mining, tunnel and large - scale construction projects.

Technical Data of R25/R28/R32/R38 Thread Bit

Diameter		No x Buttons Diameter(mm)		Button Angle	Flushing Holes		Weight(kg)
mm	inch	Gauge Buttons	Front Buttons	Button Angle	Side	Front	Weight(kg)
R25(1") BUTTON BIT - (Spherical Buttons & Ballistic Buttons)
33	1 5/16	5x7	2x7	35	1	1	0.4
35	1 3/8	5x9	2x7	30	1	1	0.5
38	1 1/2	5x9	2x7	30	1	1	0.6
38	1 1/2	4x9	2x8	30	2	1	0.5
41	1 5/8	4x9	2x8	35	1	1	0.6
41	1 3/4	5x9	2x9	35	2	1	0.6
45	1 3/4	5x11	2x8	30	2	1	0.7
45	1 3/4	4x11	2x9	35	2	1	0.6
48	1 7/8	5x11	2x9	35	2	1	1.0
R28(1 1/8") BUTTON BIT - (Spherical Buttons & Ballistic Buttons)
38	1 1/2	5x9	2x7	30	2	1	0.6
41	1 5/8	5x9	2x8	35	1	1	0.7
43	1 11/16	5x9	2x8	35	2	1	0.7
45	1 3/4	6x9	3x8	35	2	1	0.8
R32(1 1/8") BUTTON BIT - (Spherical Buttons & Ballistic Buttons)
45	1 3/4	5x9	2x8	30	1	1	0.8
45	1 3/4	6x9	3x8	35	1	3	0.8
48	1 7/8	5x10	2x9	35	2	1	0.8
48	1 7/8	6x9	3x8	35	1	3	0.9
51	2	5x11	2x11	35	2	1	0.9
51	2	6x10	3x9	35	1	3	1.1
57	2 1/4	6x11	3x9	35	1	3	1.1
57	2 1/4	6x11	3x9	35	1	3	1.5
64	2 1/2	8x10	4x10	35	1	2	1.5
64	2 1/2	6x10	3×10 1×10	35	-	3	2.2
76	3	8x11	4×11	35	1	2	1.8
76	3	8x11	4×11 1×11	35	-	4	3.4
R38(1 1/2") BUTTON BIT - (Spherical Buttons & Ballistic Buttons)
64	2 1/2	8x10	4×10	35	1	2	1.7
76	3	8x11	4×11	35	1	2	2.6