QL60-195 DTH bit is used by customers for infrastructure construction. Due to the complex and overburden and rock form and conditions, including pebbles, boulders, soft rocks, hard rocks, soil, etc., the key is to maintain the stability of the drilling tool. The drill bit is designed with a concave surface to maintain the verticality of the aperture. The drill bit skirt boday are made of special steel to maintain the toughness and durability of the drill bit and prevent it from easily breaking.
Face Shape
Head Diameter
(mm)
Shank Length
Spline
holes Qty
Button qty.pcs * Dia.(mm)
Weight
(Kg)
Button Type
(Optional)
Gauge Buttons
Front buttons
concave face
154
253
12
2
Dome
8*Φ18
4*Φ16+4*Φ15
22.5
Flat Face
165
253
12
2
Dome
8*Φ18
8*Φ16
23
concave face
171
253
12
2
Dome
8*Φ18
6*Ø16+4*Ø15
24.4
concave face
178
253
12
2
Dome
8*Φ18
6*Φ16+5*Φ15
25.3
concave face
190
253
12
3
Dome
9*Φ18
6*Φ16+5*Ø15
26.5
concave face
203
253
12
2
Dome
10*Φ18
8*Ø16+6*Ø15
29.7
Rock drilling tools factory ProDrill produces DTH Drill Bits with QL shank type are available in a various range of sizes and with a number of custom design features for optimum performance in a rock formation.
Flat Face
An universal design, especially for hard and abrasive rock formation. Typically, flat face with hemispherical buttons design is the most popular choice. This kind of face shape is suitable for hard to very hard and abrasive rock formations in application with high air pressure. Good penetration rates an resistance to steel wash.
Dome/Hemispherical Buttons
Universal buttons for all rock formation, best suited to hardest and very abrasive rock formation.
A QL60 drill bit is a DTH (Down-The-Hole) hammer bit used for drilling large-diameter holes in hard rock formations. The "QL60" refers to the specific type of QL series DTH hammer it is designed to work with, which typically has a 6-inch shank. These bits are characterized by tungsten carbide buttons that break up rock through high-impact forces from the hammer, combined with rotation from the drill string.
Key features and functions
Purpose: Used for applications like mining, quarrying, water well drilling, and general construction where holes need to be drilled in hard rock.
Working principle: It functions with a DTH hammer, which is located directly behind the bit. The hammer delivers rapid, powerful impacts to the bit, while the drill string rotates it.
Construction: Typically made from high-quality carbon steel and features durable tungsten carbide buttons for wear resistance.
Shank type: The "QL60" shank signifies a 6-inch connection, and the bit is engineered to fit this specific hammer.
Hole size: The resulting hole diameter can vary, but QL60 bits are often used for drilling holes in the 155mm to 190mm (approximately 6 to 7.5 inches) range, depending on the specific bit model.
Customization: QL60 bits are available with different face designs (flat, concave, convex) and button configurations to optimize performance in various rock types and conditions.