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We don't resell the component that keeps failing. We re-engineer it.

A part that wears out on schedule is a part doing its job. These forty-eight didn't — they failed early, took a shift down with them, and failed the same way the next time. We redraw those until they stop coming back.

Where GB's parts sit on a surface tophammer drill rig

Line drawing of a tracked surface drill rig: vertical feed and rock drill on the left, boom, cab and engine house on a tracked carrier

Five assemblies on this machine carry components GB makes rather than resells. Scroll, or point at a marker, to look at one — the part, the number and the price are the same ones on the card in GB Market.

New Style Jaw Holder — machined block with serrated insertAs shown in GB Market

GB-BG01746125-A

Jaw Holder

Grips and unscrews the rod. The jaw plate is part of the holder, not a separate order — GB makes the plate to suit each machine.

  • DSR130
  • DI650
  • D65
GB Made$1,385.00 CAD≈ $1,000.04 USD

11 GB-made components in this assembly — the highest-cycle grip on the machine.

Also in this assembly

  • Jaw — one-piece upgrade — $845.00
  • Old Style Jaw Holder — $1,025.00
  • New Style Jaw Plate — $249.00
  • DCR L130 Jaw Plate — $350.00
  • Break Out Table TOP — $11,500.00
See these in GB Market
T-45 Centralizer with pin — cast steel split collarAs shown in GB Market

GB-3222309745

T-51 & T-45 Centralizers

Replaces Epiroc 3222309745 · guides the rod into the hole at the foot of the feed. The most-consumed assembly on the machine.

  • Epiroc T40
  • T45
  • D9
GB Made$1,595.85 CAD≈ $1,152.28 USD

15 GB-made components in this assembly — more than any other on the rig.

Also in this assembly

  • T-51 Centralizer with Pin — $1,595.95
  • Centralizer Pin — $45.25
  • Centralizer Guide Block — $1,300.00
  • Centralizer Cylinder Seal Kit — $135.99
See these in GB Market
Floating sub (spindle) — machined cylindrical housingAs shown in GB Market

GB-8992011311

Spindle Coussine-sub

Where torque meets the rod. GB makes the coussine-sub for three different rotation heads, including a redesigned DI-650.

  • D65
  • DI-650
  • Furukawa
GB Made$9,995.00 CAD≈ $7,216.89 USD

6 GB-made components in this assembly.

Also in this assembly

  • DI-650 Spindle coussine-sub — upgrade — $9,995.00
  • Furukawa Spindle coussine-sub — $9,995.00
  • Sealing Bushing — $720.00
  • Flange Bearing — $17.00
See these in GB Market
Sliding piece / teflons — polymer wear plateAs shown in GB Market

GB-3128307488

Sliding Piece / Teflons

The sliding surfaces the drill rides on — cheap components whose service life decides how often the feed comes apart.

  • DI650
  • D65
GB Made$34.90 CAD≈ $25.20 USD

8 GB-made components in this assembly.

Also in this assembly

  • Wear Plate — $885.00
  • (Slipper Pad) Teflons — $270.00
  • Guide Plate — $590.00
  • Lock Pin Sliding Piece — $2.10
See these in GB Market
Sensor / givare — rod handling position sensorAs shown in GB Market

GB-3222148800

Sensor / Givare

The support that swings rods into line — small components, high cycle count.

GB Made$125.95 CAD≈ $90.94 USD

3 GB-made components in this assembly.

Also in this assembly

  • Rod Handling Shims — $235.00
  • Rod Handling Bushing — $30.15
See these in GB Market
Line drawing of a tracked surface drill rig: vertical feed and rock drill on the left, boom, cab and engine house on a tracked carrier

Five assemblies, down the machine. Swipe, or tap a number.

Floating sub (spindle) — machined cylindrical housingAs shown in GB Market

GB-8992011311

Spindle Coussine-sub

Where torque meets the rod. GB makes the coussine-sub for three different rotation heads, including a redesigned DI-650.

  • D65
  • DI-650
  • Furukawa
GB Made$9,995.00 CAD≈ $7,216.89 USD

6 GB-made components in this assembly.

Also in this assembly

  • DI-650 Spindle coussine-sub — upgrade — $9,995.00
  • Furukawa Spindle coussine-sub — $9,995.00
  • Sealing Bushing — $720.00
  • Flange Bearing — $17.00
See these in GB Market
Sensor / givare — rod handling position sensorAs shown in GB Market

GB-3222148800

Sensor / Givare

The support that swings rods into line — small components, high cycle count.

GB Made$125.95 CAD≈ $90.94 USD

3 GB-made components in this assembly.

Also in this assembly

  • Rod Handling Shims — $235.00
  • Rod Handling Bushing — $30.15
See these in GB Market
Sliding piece / teflons — polymer wear plateAs shown in GB Market

GB-3128307488

Sliding Piece / Teflons

The sliding surfaces the drill rides on — cheap components whose service life decides how often the feed comes apart.

  • DI650
  • D65
GB Made$34.90 CAD≈ $25.20 USD

8 GB-made components in this assembly.

Also in this assembly

  • Wear Plate — $885.00
  • (Slipper Pad) Teflons — $270.00
  • Guide Plate — $590.00
  • Lock Pin Sliding Piece — $2.10
See these in GB Market
T-45 Centralizer with pin — cast steel split collarAs shown in GB Market

GB-3222309745

T-51 & T-45 Centralizers

Replaces Epiroc 3222309745 · guides the rod into the hole at the foot of the feed. The most-consumed assembly on the machine.

  • Epiroc T40
  • T45
  • D9
GB Made$1,595.85 CAD≈ $1,152.28 USD

15 GB-made components in this assembly — more than any other on the rig.

Also in this assembly

  • T-51 Centralizer with Pin — $1,595.95
  • Centralizer Pin — $45.25
  • Centralizer Guide Block — $1,300.00
  • Centralizer Cylinder Seal Kit — $135.99
See these in GB Market
New Style Jaw Holder — machined block with serrated insertAs shown in GB Market

GB-BG01746125-A

Jaw Holder

Grips and unscrews the rod. The jaw plate is part of the holder, not a separate order — GB makes the plate to suit each machine.

  • DSR130
  • DI650
  • D65
GB Made$1,385.00 CAD≈ $1,000.04 USD

11 GB-made components in this assembly — the highest-cycle grip on the machine.

Also in this assembly

  • Jaw — one-piece upgrade — $845.00
  • Old Style Jaw Holder — $1,025.00
  • New Style Jaw Plate — $249.00
  • DCR L130 Jaw Plate — $350.00
  • Break Out Table TOP — $11,500.00
See these in GB Market

Five assemblies we make ourselves.

Everything below is a part GB manufactures rather than resells — grouped by the assembly it belongs to. The rest of the catalogue is genuine OEM, and we say which is which on every card.

01
Breakout & rod support jawsGrips and unscrews the rod. The jaw plate is a wear item by design and ships as part of the holder — GB makes both the old and new style, plus a one-piece upgrade.

Jaw Holder — DSR130Jaw Holder — DI650Jaw Holder — D65New Style Jaw PlateOld Style Jaw HolderOld Style Jaw PlateDCR L130 Jaw PlateJaw — one-piece upgradeBreak Out Table TOPBreak Out Table LOWERBody Clamp

02
Centralizer & drill-steel supportGuides the rod into the hole at the front of the feed. The most-consumed assembly on the machine, and the one GB makes the most components for.

T-51 CentralizerT-45 CentralizerCentralizer PinCentralizer BlockCentralizer Guide BlockCentralizer Top PlateCentralizer CylinderHydraulic CylinderCylinder PistonCylinder Piston RodCylinder CoverCylinder Seal KitAdjustment BoltDrill Steel Support HalfPiston Rod End

03
Rotation head & spindleWhere torque meets the rod. The cousine-subs are GB-made for three different machines, including a redesigned DI-650.

DI-650 Spindle cousine-sub — upgradeD65 Spindle Coussine-subFurukawa Spindle cousine-subSealing BushingSeal Kit — sealing bushingFlange Bearing

04
Feed beam wear facesThe sliding surfaces the drill rides on, on the DI650 and the D65. Cheap components whose service life decides how often the feed comes apart.

Sliding Piece / TeflonsSliding Piece Holder Pot 8″Sliding Piece Holder Rotation 16″Lock Pin Sliding PieceSlipper Pad TeflonsWear PlateGuide PlateGuide Plate (BG13676258)

05
Rod handlingThe carousel that swings rods into line. Small parts, high cycle count.

Rod Handling ShimsRod Handling BushingSensor / Givare

Assemblies and part counts from GB's catalogue · CAD prices as shown on the card in GB Market · USD converted at 0.72205 (ECB, 24 Aug 2026) and indicative only — your account is invoiced at its own terms · Marker positions pending review.

If yours isn't on this list, that's the conversation — we start with one or two components where the difference is measurable. Bring us a problem part Prices, fitment and stock, already on the card. Browse the catalogue
(819) 642-0099 Open GB Market