Tungsten Carbide Taper Knock off Drill Bit for Quarrying

• Customization: Available
• Material: Tungsten Carbide
• Drill Bit Models: Chisel Bit/Cross Bit/Button Bit
• Model NO.: 4 46", 6, 7, 11, 12 Taper Degree
• Rock Type: Granit, Marble, Sandstone etc
• Socket Inside Diameter: 15, 19, 22, 25mm
• Applicable: for Rock Drilling, Quarrying, Mining
• Diameter: 20-45 Mm
• Button Shape: Spherical/Parabolic
• Compatible: with Rock Drill Y20 Y24 Yt24 Yt28 etc.
• Usable: with Taper Drill Steel Rod
• Delivery Time: Within 25days After Receipt Your Payment by T/T
• Transport Package: Plywood Box, Carton, Wooden Case, etc
• Specification: CE, SGS
• Trademark: BESTLINK
• Origin: Xiamen, China
• HS Code: 82071990
• Production Capacity: 10000 PCS/Month

Product Description

(1)Taper angle: 4° , 4° 46, 6° , 7° , 11° , 12°
(2)Models: Chisel/cross/button bit
(3)Dia: 20-45 mm
(4)Button bit shape: Spherical/parabolic
(5)Socket inside dia: 15/19/22/25mm

Our tapered drill bits are made with high quality alloy steel bar and tungsten carbides, through heat treatment.

1. Tapered chisel bit
Widely used in drilling holes with depth less than 5 meters and diameter ranged in 20-45 mm by light-duty rock drill, like Y6.

Description	Diameter	Length	Water hole
Taper degree a=4°,6°,7°,11°,12°;  Socket inside d=15,19,22,25mm	mm	mm	2
	20	65	2
	23	65	2
	25	69	2
	28	60	2
	30	55 88	2
	32	55 64 71 80	2
	34	71 80	2
	36	74	2
	38	74	2
	40	74	2
	42	74	2
	45	74	2

2. Tapered cross bit
Used under any rock drilling condition and mainly used for hard or very hard rock formation because of it's comprehensive adaptability. Compared with taper chisel bits, taper cross bits have a better drilling performance because of carbide tips on cross bits doubled, which means carbides shape are cross type on drill bits. Taper cross bit is mainly used for hard or very hard rock formation.

Description	Diameter	Length	Weight
Taper degree a=6 °,7°,11°,12° ; Socket inside d=19,22,25mm	mm	mm	kg
	28	71 80	0.19
	29	71 80	0.2
	30	50 67 71 80	0.3
	32	50 67 71 80	0.3
	33	71 80	0.32
	34	67 71 80	0.34
	35	67 71 80	0.35
	36	71 80	0.36
	38	67 71 80	0.42
	40	71 80	0.43
	41	71	0.45
	42	69 80	0.46
	44	80	0.47
	45	80	0.5

3. Tapered Button Bits
Comparing with taper chisel and cross bits, button bits have higher technology, much longer primary drilling time and higher drilling efficiency. According to the tungsten carbide insert, button bits can be divided into types of hemispherical, conical and parabolic button, etc.
Button bits with hemispherical button is for high bearing capacity and abrasive resistance while conical button and parabolic button are for high drilling speed and low abrasive resistance.

Description	Diameter	Length	No. of button	Weight
Taper Angle a=4°46″,6 °,7°,11°,12°; Socket inside d=19,22,25mm	mm	mm	pcs	kg
	28	50	4	0.2
	29	50	4 5 6 7	0.2
	30	50 80	5 6 7 8	0.2 0.3
	32	50 55 71 80	6 7 8 9	0.2 0.22 0.3
	33	50 55 71 80	6 7 9	0.2 0.3 0.36
	34	50 55	7 8	0.22 0.3
	35	55 71 80	4 5 6 7	0.22 0.3 0.37
	36	50 55	7	0.3 0.35
	37	55	4 6 7	0.3
	38	50 55	4 6 7	0.25 0.35
	40	50 55	7	0.35
	41	50 55 71	4 5	0.35
	42	50	6 7	0.4
	45	50 55 71	6 7 8 9	0.5