Request a Quote

3-Inch DTH Water Hammer

The WAI30 is Drill King’s water-driven DTH hammer — a high-frequency, environmentally friendly alternative to conventional air hammers with competitive rates of penetration. It drills a straighter hole, causes less formation washout, eliminates dust, and dramatically reduces noise.

Bit Range (89–102 mm)

3.5″–4″

(70–90 mm)

Impact Frequency

Up to 3,570 bpm

Working Pressure

900–2450 PSI

62 - 169 BAR

Drive Type

Fluid (WAI IR3.5)

Why Drill King?

Straighter Holes

The W60I will drill a straighter hole than a conventional air hammer, reducing hole deviation for precision projects

Ultra-High-Frequency

At 3,570 blows per minute, the W30I delivers incredible rock-breaking power

Reduced Formation Washout

Water evacuates the hole at a much slower velocity than air, reducing unintended washout of unconsolidated geology.

Fuel Efficency

Water pumps are significantly more efficient than air compressors meaning the same hole is drilled with less fuel and carbon emissions.

Configurable Wear Sleeve

Choose a smooth wear sleeve or one with integrated stabilizing ribs at a custom diameter to minimize hole deviation for your application

Sensitive Environments

No dust, dramatically reduced noise, and less formation washout make WAI hammers ideal for urban, underground, or structurally sensitive applications.

Technical Specifications

HADK- W30I

Drill King’s 3″ fluid-driven DTH hammer with an IR3.5-style shank. Premium alloy and unique surface treatments deliver longer-lasting tools with lower energy consumption.

Top Sub Connection

2-3/8" API REG PIN

OAL

38.5 in / 978 mm

OD Range

3.62 in / 92 mm

Weight w/o Bit

74.3 lbs / 34 kg

Parts List (WAI IR3.5)
No Part Name Qty Part Number
1 Top Sub 1 HPDK-W3002
2 Top Sub O-Ring 1 See Sealkit
3 Filter Cage 1 HPDK-W3027
4 Filter 1 HPDK-W3026
5 Check Valve 1 HPDK-W3004
6 C.V. Spring 1 HPDK-W3003
7 C.V. Seat 1 HPDK-W3005
8 Metal Washers 2 See Sealkit
9 Valve Cap 1 HPDK-W3025
10 Valve Cap O-Ring 1 See Sealkit
11 Wear Bushing 1 HPDK-W3024
12 Valve 1 HPDK-W3007
13 Valve Housing 1 HPDK-W3010
14 Valve Housing Seal 1 See Sealkit
15 Valve Housing Seal 1 See Sealkit
16 Valve Housing Seal 1 See Sealkit
17 Inner Tube 1 HPDK-W3009
18 Piston 1 HPDK-W3014
19 Cylinder 1 HPDK-W3012
20 Piston Bushing O-Ring 1 See Sealkit
21 Piston Bearing 1 HPDK-W3021
22 Piston Bushing Seal 1 See Sealkit
23 Piston Bushing O-Ring 1 See Sealkit
24 Piston Bushing Seal 1 See Sealkit
25 Piston Bushing O-Ring 1 See Sealkit
26 Piston Bushing Seal 1 See Sealkit
27 Piston Bushing O-Ring 1 See Sealkit
28 Wear Sleeve 1 HPDK-W3001
29 Bit Bearing 1 HPDK-W3020
30 Bit Ret. Ring 1 HPDK-W3018
31 Bit Ret. O-Ring 1 See Sealkit
32 Drive Sub 1 HPDK-W3022
Sealkit (Items 2, 8, 10, 14-16, 20, 22-27, 31) 1 HPDK-W30SEALKIT
Complete Hammer 1 HADK-W30I
Dimensions & Weights
Top Sub2-3/8″ API REG PIN
OAL (in / mm)38.5 / 978
OD Range (in / mm)3.62 / 92
Weight w/o Bit (lbs / kg)74.3 / 34
Piston Weight (lbs / kg)10.5 / 4.77
Drilling Parameters
Working Pressure (PSI / Bar)900-2450 / 62-238
Application Bit (in / mm)3.5-4 / 89-102
Feed Force (FT-lbs / M-Kg)1600-2300 / 221-318
Rotation Speed (RPM)60-95
Rotation Torque (FT-lbs / M-Kg)600-1090 / 83-151
Frequency (blows / min)3570
Fluid Consumption
PSI Min Max
New (Gal/Min) 20 40
Worn (Gal/Min) 45 80
Note: Drilling parameters given are guideline only.

Exploded View — HADK-W30I (WAI IR3.5)

Engineered for Excellence in Mansfield, TX

Drill King experts are ready to elevate your drilling performance

A Texas-born, ISO 9001:2015 certified DTH manufacturer supplying high-performance drilling tools to operators worldwide.
From concept to field validation, our U.S.-based engineers design and custom-build tools for the toughest downhole conditions.
CNC precision machining, Just-In-Time scheduling, and private-label options, with most stock items shipping within 24 hours.
ISO 9001-governed inspection and full serialized traceability let us track every part back to its raw material.
Training, documented procedures, routine equipment checks, and proper PPE are built into every stage of production.

Social Responsibility

Committed to responsible manufacturing that protects our people, supports our communities, and respects the environments where our tools work.

Product Inquiry

Request a Quote

Great! We’ve received your information.

Construction

Built tough enough for the unpredictability of job sites, our equipment minimizes costly downtime and re-drills.

Exploration

Every hole counts, and our tools are built to keep penetration rates high even in unpredictable, mixed formations.

Mining

Engineered for open-pit and underground alike, our tools lower per-meter drilling costs without sacrificing performance.

Oil & Gas

Engineered for the rigors of well-site conditions, our hammers and bits extend service life while reducing per-foot drilling costs.

Quarrying

Less downtime, fewer bit changes, more material moved. That's the Drill King difference for quarry operators who can't afford to slow down.

Water Well & Geothermal

From residential wells to large-scale geothermal fields, our tools are trusted to get the job done right the first time