DTH Hammers and Bits

AMS stocks a wide range of Down the Hole (DTH) hammers ranging from 4 to 8 inch in diameter. We also carry a wide variety of DTH bits in numerous shank sizes and can custom make any type of bit to suit all drilling requirements.

Australasian Mining Services (Pty) Ltd is the official exclusive distributor for Shareate Tools Ltd products in Australia.

DTH Hammer Range
Model
Shank
Top Sub Thread
Total length (ex. bit)
Weight (ex. bit)
Piston Weight
Outside Diameter
Bit Range (inches)
Bit Range (metric)
Model
Shank
Top Sub Thread
Total length (ex. bit)
Weight (ex. bit)
Piston Weight
Outside Diameter
Bit Range (inches)
Bit Range (metric)
SD45B
DHD340
2 3/8" API Reg
37" (940mm)
88 lbs (40kg)
18.8 lbs (8.52kg)
3.9" (100mm)
4 1/2" - 5"
115 - 127mm
Download Product Sheet
Model
Shank
Top Sub Thread
Total length (ex. bit)
Weight (ex. bit)
Piston Weight
Outside Diameter
Bit Range (inches)
Bit Range (metric)
WQ55B
QL5
3 1/2" API Reg
41.93" (1065mm)
152.8 lbs (69.3kg)
35 lbs (16.06kg)
4.96" (126mm)
5 1/2" - 6"
140 - 152mm
Download Product Sheet
Model
Shank
Top Sub Thread
Total length (ex. bit)
Weight (ex. bit)
Piston Weight
Outside Diameter
Bit Range (inches)
Bit Range (metric)
WQ65B
QL6
3 1/2" API Reg
43.33" (1101mm)
210.8 lbs (95.6kg)
46 lbs (20.88kg)
5.75" (146mm)
6 1/2" - 8"
165 - 203mm
Download Product Sheet
Model
Shank
Top Sub Thread
Total length (ex. bit)
Weight (ex. bit)
Piston Weight
Outside Diameter
Bit Range (inches)
Bit Range (metric)
SQ8
QL80
4 1/2" API Reg
51.18" (1300mm)
458.5 lbs (208kg)
92.5 lbs (42kg)
7.64" (194mm)
8 1/2" - 12"
216 - 254mm
Download Product Sheet
Bit Face Selection
Flat Face
Flat Face bits are a general purpose bit that will work in all rock conditions but should be used in hard or abrasive conditions such as granite, basalt, and hard limestone. Flat face bits are the best choice for drilling in a high silica environment. Flat face bits produce good penetration rates and better erosion pattern.
Double Gauge Face
Suitable for fast penetration rates in medium to hard rock formations. This bit face is designed for high air pressures.
Convex Face
Convex Face bits are designed for fast penetration rates in softer rock like shale and limestone with low silica content.
Concave Face
Concave Face designed for unconsolidated or broken rock. These face features will help drill straighter holes in medium to hard formations.
Drop Centre
For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures. Maximum hole deviation control.

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