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Chisel Bit

● Cost-effective: The relatively simple manufacturing process makes the tool itself and its tapered drill rods cheaper, effectively reducing construction costs.
● Easy to regrind: Due to its simple structure (only one alloy piece), on-site regrinding is very convenient after wear during operation, which helps extend the tool's service life.
● Reliable operation: A simple structure means fewer potential failure points, resulting in stable and reliable performance under proper operation.

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Product Introduction

Product introduction

A Chisel Bit is a rock drilling tool with a flat-shaped hard metal piece welded to its top. It connects to a conical drill rod through a conical hole in its tail and is one of the main tools used in rock drilling projects for medium and small diameter boreholes.

Chisel Bit product Parameter (specification)

Parameter Name	Connection method	Unit	Tungsten carbide bit diameter
Single-character shape	Tapered connection	mm	Φ20- Φ45

Product feature and application

Structural features:

A single-character-shaped hard metal blade: A piece of hard metal is embedded and welded on top as the main cutting component.
Tapered Hole Connection: The tungsten carbide bit body is equipped with a tapered hole, which is used to tightly connect with a tapered drill rod of the same taper (common tapers include 7°, 11°, and 12°).

Application fields:

Mining: Ferrous metal ores (such as iron ore, manganese ore), non-ferrous metal ores (such as gold ore, copper ore), coal, etc.

Engineering construction: railways, highways, tunnels, water conservancy facilities engineering, etc.

Geological exploration: Resource survey, engineering geological investigation.

Quarry: Extraction of stone materials such as marble and granite.

Production details

Tungsten carbide tip: Forged from high-quality alloy steel (35SiMnMoV) to ensure toughness and strength

Cutting edge: Uses hard metal with high hardness and wear resistance

Why choose us

1.Cost-effective
It has a simple structure and low manufacturing cost; the配套的锥形钎杆 (conical drill rods) and rock drills are also relatively inexpensive.

2.Durable and easy to maintain
The Chisel Bit is made of high-quality alloy steel (35SiMnMoV) and embedded with high-hardness tungsten carbide blades through welding. It has strong wear resistance. After wear, its simple \"one\"-shaped cutting edge is very convenient to sharpen on-site, allowing for reuse and effectively extending the tool's service life.

3.Broad applicability
It has strong adaptability to rock mass properties and can be used to drill various hardness of rocks.

FAQ

Q: How to select the appropriate tapered drill rod for Chisel Bit?

A: 1.Consistent Taper: The internal tapered hole of the bit must be exactly the same as the taper of the drill rod (e.g., both are 7°). Best practice is to prioritize using配套 products provided by the same brand or manufacturer to maximize the accuracy of the fit.
2.Insertion depth: The depth to which the drill rod is inserted into the conical hole of the drill bit must be greater than 25 millimeters. At the same time, the head of the drill rod should not fully contact the bottom of the drill bit hole; a certain gap must be left. Otherwise, under impact loads, it is very easy to cause damage or detachment of the drill bit.

Q: In what situations is Chisel Bit most suitable to use?

A: 1.Suitable for drilling rock layers with low hardness using light-duty rock drills.
2.Not applicable to non-homogeneous rocks with well-developed fractures.
3.Suitable for use with light rock drills for shallow hole drilling and chiseling of medium and small diameter (less than 50mm) holes with a depth generally not exceeding 10 meters.

Q: What are the essential operational points to note when using it?

A: 1.When starting rock drilling, the air volume or impact energy of the rock drill should be reduced. Once the drill bit is fully embedded in the rock, normal operating parameters should be restored to prevent the alloy tip from chipping due to excessively high local stress.
2.If you feel that the drill has encountered rebar or other hard foreign objects while working on an assignment, stop immediately and adjust the drilling position. Forcing it through will seriously damage the drill bit.
3.If jamming of the drill rod frequently occurs in a specific rock layer, it indicates that a一字 drill bit may not be suitable. Consider replacing it with a cross-shaped drill bit or a ball tooth drill bit instead.

Q: How to determine if a Chisel Bit needs resharpening or replacement?

A: 1.When the platform width caused by wear of the bit cutting edge reaches 3 millimeters, it must be promptly removed for regrinding. Continuing to use it will not only cause a sharp drop in drilling speed but also may result in bit fragments or cracking, leading to permanent damage.
2.If the tip shows obvious conical wear (i.e., the head diameter is smaller than the root), or if the alloy segments are chipped, cracked, or otherwise damaged, they should be replaced immediately and must not be reground for further use.

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