Mining Rock Drilling Tools Taper Drill Button Bit 28mm-42mm7°11°

Product Detail

Product introduction：

Perfect design, tungsten carbide, and skirt steel, leading strength and penetration for increased productivity, excellent straightness, and hole cleaning quality for maximum drilling performance for fuel cost savings.
We can design and manufacture diameter, number of buttons and flush holes, button shape, and inclination according to customer’s samples or drawings. Our button bits are made of high-quality tungsten carbide and steel, cold-treated to make them usable for hard rock drilling and to transfer the intense impact energy into the rock with a minimum of possible energy loss. Compared with tapered chisel bits and tapered cross bits, button bits have higher technology, longer drilling time, and higher drilling efficiency. According to the different buttons, tapered button bits can be divided into dome type, ballistic type, etc.
Tapered button drills are the most popular sharp drills and are available in a variety of head diameters from 26mm to 48mm. Tapered button drills by hot pressing carbide buttons on the bit skirt provide good drilling performance and excellent service life.

Threaded connection drill bits are also known as threaded connection drill bits, ball tooth drill bits, and column tooth drill bits. Threaded connection drill bit is connected through the thread of the drill bit and the threaded drill rod to achieve the transmission of impact energy and rotational torque of the rock drill, thereby breaking the rock of the rock drilling tool. This type of rock drilling tool product is mainly used in conjunction with hydraulic rock drilling rigs and hydraulic rock drilling rigs. The main thread forms include R22, R24, R30, R25, and R32 thread drill products. Widely used in open-pit mining, underground mining, tunnel excavation, anchoring engineering, blast furnace drilling, tunnel engineering, hydropower engineering, quarrying and other construction projects.

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Features：

• Raw material: 35CrNiMoV (high-quality alloy)

• Drill diameter: 28mm～48mm

• Key configuration: 4 buttons, 5 buttons, 6 buttons, 7 buttons, 8 buttons

• Taper angle: 7°/11°/12°

• Drill pipe specification: Hex B22

• Skirt/Skirt length: 50-55mm, 60-70mm, 75mm-80mm

• Socket inner diameter: 22/23/25mm

• Button Type: Ballistic/ballistic, spherical button/spherical button

• Color: blue, red, yellow, black (or custom)

• Packing: 50pcs or 100pcs wooden case or plastic box.

• Design: We can design according to the customer’s requirements and drawings, including button quantity, button type, and flushing hole.

• MOQ: 1 piece for checking the quality

Technical parameter：

Diameter		Button Number	Angle	Length	Weight	Package
mm	inch	(pieces)	(°)	(mm)	(kg)	box
28	1 1/8 ”	4	7°/11°/12°	65-69	0.2	50pcs/box
30	1 3/16 ”	4~6	7°/11°/12°	65-69	0.20~0.30	50pcs/box
32	1 1/4 ”	4~7	7°/11°/12°	65-69	0.20~0.30	50pcs/box
34	1 11/32 ”	4~8	7°/11°/12°	65-69	0.22~0.30	50pcs/box
35	1 3/8 ”	7~8	7°/11°/12°	65-69	0.22~0.40	50pcs/box
36	1 13/32 ”	4~8	7°/11°/12°	65-69	0.30~0.40	50pcs/box
38	1 1/2 ”	4~8	7°/11°/12°	65-69	0.30~0.40	50pcs/box
40	1 9/16 ”	4~8	7°/11°/12°	65-69	0.30~0.42	50pcs/box
41	1 5/8 ”	4~8	7°/11°/12°	65-69	0.30~0.42	50pcs/box
42	1 21/32 ”	4~8	7°/11°/12°	65-69	0.30~0.46	50pcs/box