PDF Datasheet
Truespin® Hollow Stem Augers are a unique drilling system designed to satisfy the needs of today’s serious environmental and geotechnical driller. If you are looking for increased performance in a better product, consider Truespin®.

Truespin® Augers are designed to meet your toughest challenges:
• Reduce twist offs with a stronger auger
• Lessen maintenance with a more durable auger
• Eliminate joint leakage and minimise sample contamination
• Drill deeper and straighter holes
• Reduce cuttings
• Control running sands
• Eliminate augers locking together with cuttings
• Diameters from 57.2mm to 311.2mm ID (2 1/2” to 12 1/4” ID)


The Heart of Truespin® Augers: The exclusive Hinged Split Coupler
STEP 1 – Rotate augers to align flight end vertically. The curvic coupler is automatically positioned.
STEP 2 – Press coupler sections together. The coupler’s tapered teeth (when seated) complete the alignment.
STEP 3 – Slip the hinged clamp around the coupling, lining up the clamp with the lower flight cutoffs.
STEP 4 – Close the clamp. Insert the clamp bolt and tighten firmly.

KEY NO. DESCRIPTION
1 Hex Drive Cap Assembly
2 Drive Cap Split Coupler Assembly
3 O-Ring
4 Auger Assembly
5 Split Coupler Assembly
6 Auger Bit Assembly
7 Bit Point Cutter
8 Bit Rock
9 Bit Blade Cutter
10 Double Drive Cap (Hex) Assembly
10a Rod to Cap Adapter
11 Centre Rod
12 Centre Bit Assembly
13 Centre Bit Point Cutter
14 Centre Bit Block
15 Centre Pilot Bit Cutter
16 Tube Drive Cap Assembly
17 Hoist Coupler Assembly
18 Flange Drive Cap Assembly
19 Auger Fork
20 Shank Curvic Coupler
21 Socket Curvic Coupler
22 Double Drive Cap Adapter Pin
23 Screen Auger Assembly
24 Nylon Insert Split Coupler Bolt
Truespin® Specifications
Inside Diameter (mm) Outside Diameter flight (mm) Cutting Diameter of Bits (mm) Auger Assembly Weight (kg) Bit Assembly Weight (kg) INFO
REQUEST
57.2 136.5 152.4 20.9 4.5
82.6 187.3 203.2 37.2 8.6
111.0 215.9 231.8 50.0 9.1
168.3 273.1 288.9 57.2 10.9
209.5 314.3 323.9 67.1 14.9
260.3 368.3 381.0 114.8 18.1
311.2 419.1 431.8 134.7 20.9
Double & Tripple Key HS Augers - Hollow Stem CFA Coupling - Truespin® Hollow Stem Augers