Главная страница

Long skirt drill bits

Product no.:Q8-331222-27/67-45-51
Tapered Degree: 12°
Diameter: 33 mm
Gauge Buttons: 7mm*2
Front Buttons: 7mm*6
Carbide Design: Dome, Ballistic
Face Design: Flat
Skirt Design: long skirt (70mm)
Carbide Brand and Grade :ZCC/YK05
Steel grade :45CrNiMoVA

Key words：

Tapered Button Bit

Related Products

Message

Product Details

Description
Long skirt drill bits made with high quality of raw material through special heat treatment, especially, tungsten carbide of tapered button bits widely applied in Hand Hold ( short-hole) drilling system for dimensional stone quarrying.
The height of the drill bit for shorts body is generally 50-55mm； The height of Long skirt drill bit is generally above 60mm.
Taper Angle (Degree):4°46′,7°,11°,12°
Dia.:28mm,30mm,32mm,34mm,36mm,38mm,40mm,42mm,46mm,48mm,50mm,55mm,60mm70mm,80mm
Drillers choose tapered button bits for faster drilling penetration rate. Different taper sizes have different characteristics when it comes to the "knock-off" index - the smaller angle will prevent the bit from spinning.

Performance
1.Long skirt drill bits connect with tapered drill rod perfectly for drilling holes
2.Stable and mature welding technology ensure high quality of bits
3.Accurate dimension of taper degree perfectly matches the rods
4.work reliable and very cost-effective
5.High grade tungsten carbide inserts
6 Bit bodies manufactured from high grade steel and processed using state-of-the-art CNC machinery and heat treatment

Application
Long skirt taper button bits are used for tunneling, mining,quarrying, Well drilling,mining drilling,ore drilling
• Suitable for small hole range
• Widely used in Dimensional Stone Quarrying Industry
• Widely used in Underground Mining Industry

Details Form

Diameter		NO.×button diameter			flushing hole		Weight （kg）	HENGLONG P/N
mm	inch	front	gauge	Angle	front	side	Weight （kg）	HENGLONG P/N
36	1 1/32	2×7	5x7	35°	2	1	0.2	1111-36446-27/57-45-51
33	1 5/16	2×7	5×8	40°	1	1	0.3	1111-33446-27/59-45-51
36	1 13/32	2×7	5×9	35°	1	1	0.3	1111-36446-27/59-45-51
41	1 5/8	2×7	5×7	35°	2	-	0.3	1111-41446-27/57-45-51
43	1 11/16	2×8	5×9	35°	1	2	0.4	1111-43446-28/59-45-51

HENGLONG workshop and Process of manufacturing

Packing and shipping

Factory

Customer visit

Production

QUALITY INSPECTION PROCESS

Product quality is one of the core links in the development and growth of Yanggu Henglong Engineering Co., Ltd. Our company has strict internal and external inspection processes to ensure the quality of our products. Our inspection process for our products is as follows.

Tapered Button Bit