SD DTH Hammer Bit

SD DTH Hammer Bit

Sizes: SD4, SD5, SD6, SD8, SD10, SD12
Suitable shank: SD shank
Application:Water well drilling, domestic borehole drilling, construction, mining
"SD" is a special shank design. Gdrills provide various bit face design choice include flat face, concave face, convex face, drop center, and double-sided face, which is to meet different needs of rock formations.
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DTH Bit Face Design

 

Item

Bit Face Picture

Descriptions

Flat face

product-557-530

It's a flat face with a uniform surface.

Suitable for soft to medium rock formations.

Advantage on precision drilling.

Convex face

product-545-537

It's curved outward design with slightly convex.

Suitable for formations where the rock is abrasive or extremely hard.

Advantage on large-scale mining or construction.

Concave face

product-542-526

It's curved inward with slightly concave.

Suitable for where ROP ( rate of penetration) is required.

Advantage on drilling efficiency

Drop center

product-573-538

It features a depressed center with the surrounding area of the face raised.

Advantages on fast penetration, especially in softer rock formations

Double-sided button face

product-538-528

It features tungsten carbide buttons arranged on both sided of the bit face, often with a slightly concave center.

Advantages on improved penetration rates in tough, hard rock formations.

 

Warranty Procedures

Any warranty claim must be submitted in writing to Gdrills within 280 days from the date of shipment. Resolution of Claim Warranty claims will be resolved under the following conditions:

1. Documentation Requirements:

Detailed photos or videos must be provided to Gdrills, along with the purchase date and the information specified in Section 2 below. Claimants are required to retain the products in question until Gdrills has fully resolved the claim. Gdrills reserves the right to request the return of the products if the provided photos or videos are insufficient to determine the validity of the claim.

2. Claim Details:

The claimant must provide Gdrills with a detailed description of the issue, including:
The footage drilled by the product.
Air pressure used during operation.
Rock formation and drilling location.
For drill bits: the diameter over the gauge row and the width across the flats on the gauge row buttons. Additional relevant information that may assist in analyzing the claim is also requested.

3. Claim Approval and Compensation
Once a claim is approved by Gdrills, compensation will be provided in one of the following forms:
Replacement with new products.
Provision of specific spare parts.

A credit of up to the maximum amount paid by the claimant to Gdrills for the product. Gdrills retains the final authority to determine the type and amount of compensation to be issued.

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Specifications

SD4 DTH Hammer Bits

Face Diameter Part No. T.C Buttons(mm) Angle Flushing Holes Dia.(mm) Weight(kg)
Gauge Front
mm inch Flat Convex Concave
Convex 115 4.53 GSD4-115CV71 7×14 2×14 4×14 / 38° 2×18 9.0
Convex 115 4.53 GSD4-115CV72 7×16 2×14 4×14 / 38° 2×18 9.0
Convex 115 4.53 GSD4-115CV8 8×16 2×14 4×14 / 38° 2×18 9.0
Convex 125 4.92 GSD3-125CV8 8×14 3×14 4×14 / 38° 2×18 9.6
Flat 127 5 GSD4-127FF8 8×14 7×13 / / 38° 2×18 9.7
Flat 130 5.12 GSD4-130FF8 8×14 7×14 / / 38° 2×18 9.9

 

SD5 DTH Hammer Bits

Face Diameter Part No. T.C Buttons(mm) Angle Flushing Holes Dia.(mm) Weight(kg)
Gauge Front
mm inch Flat Convex Concave
Convex 140 5.51 GSD5-140CV7 7×18 3×14 4×15 / 38° 2×20 14.6
Flat 140 5.51 GSD5-140FF8 8×16 8×14 / / 38° 2×20 14.8
Flat 146 5.75 GSD5-146FF8 8×18 8×15 / / 38° 2×20 15.4
Concave 146 5.75 GSD5-146CC8 8×18 4×15 / 3×14 38° 2×20 15.3
Flat 152 5.98 GSD5-152FF8 8×18 8×15 / / 38° 2×20 15.9
Concave 152 5.98 GSD5-152CC8 8×18 4×16 / 4×14 38° 2×20 15.7

 

SD6 DTH Hammer Bits

Face Diameter Part No. T.C Buttons(mm) Angle Flushing Holes Dia.(mm) Weight(kg)
Gauge Front
mm inch Flat Convex Concave
Flat 165 6.5 GSD6-165FF8 8×18 8×16 / / 38° 2×26 26.3
Convex 165 6.5 GSD6-165CV8 8×16 4×16 4×16 / 38° 2×26 26.1
Concave 165 6.5 GSD6-165CC8 8×18 4×16 / 4×15 38° 2×26 25.8
Concave 171 6.73 GSD6-171CC8 8×18 6×16 / 4×16 38° 2×26 26.5
Concave 178 7.01 GSD6-178CC8 8×18 6×16 / 4×16 38° 2×26 27.1
Concave 190 7.48 GSD6-190CC10 10×18 8×16 / 5×16 38° 2×26 28.6

 

SD8 DTH Hammer Bits

Face Diameter Part No. T.C Buttons(mm) Angle Flushing Holes Dia.(mm) Weight(kg)
Gauge Front
mm inch Flat Convex Concave
Concave 203 7.99 GSD8-203CC10 10×18 8×18 / 5×16 38° 2×30 40.1
Concave 216 8.5 GSD8-216CC10 10×18 8×18 / 6×16 38° 2×30 44.3
Concave 219 8.62 GSD8-219CC10 10×18 8×18 / 6×16 38° 2×30 44.8
Concave 229 9.02 GSD8-229CC12 12×18 12×16 / 7×16 38° 2×30 46.4
Concave 235 9.25 GSD8-235CC12 12×18 12×16 / 7×16 38° 2×30 47.4
Concave 245 9.65 GSD8-245CC12 12×19 12×16 / 8×16 38° 2×30 51.5

 

SD10 DTH Hammer Bits

Face Diameter Part No. T.C Buttons(mm) Angle Flushing Holes Dia.(mm) Weight(kg)
Gauge Front
mm inch Flat Convex Concave
Concave 254 9.65 GSD10-254CC12 12×19 12×16 8×18 6×16 38° 2×30 82.1
Concave 275 10.83 GSD10-275CC12 12×19 12×16 8×18 8×16 38° 2×30 86.2
Concave 305 12.01 GSD10-305CC12 15×19 15×18 12×18 9×16 38° 3×26 98.7

 

SD12 DTH Hammer Bits

Face Diameter Part No. T.C Buttons(mm) Angle Flushing Holes Dia.(mm) Weight(kg)
Gauge Front
mm inch Flat Convex Concave
Concave 305 12.01 GSD12-305CC27 27×18 15×18 / 11×16 38° 3×35 105.0
Concave 315 12.4 GSD12-315CC27 27×18 15×18 / 12×16 38° 3×35 129.0
Concave 325 12.8 GSD12-325CC27 27×18 15×18 / 15×16 38° 3×35 132.0
Concave 350 13.78 GSD12-350CC27 27×18 24×18 / 12×16 38° 3×35 151.0

 

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