American Pneumatic
155 Series Rock Drill
Overview
The 155 at 61lbs is a 60lb Class, Heavy Weight, Sinker Rock Drill.
All Chuck Options are available as well as the “Wet” version for Dust control.
It has Three Throttle Settings and is designed for Drilling Holes in Solid Concrete and Natural Stone from 1/2”Dia up to reasonably about 3-3/4”Dia.
This Rock Drill is for Drilling Solid Concrete or Natural Stone, preferably crystalline stone such as Granite. It is Not designed to Drill Broken or Crumbled Rock formations. It is commonly used in General Construction, Quarry Work, Ramp and Bridge Work, Plant Maintenance, and more.
It is a Rock Drill Only- Points, Chisels, etc are Not used in this tool.
Features & Applications
- 60lb Class Sinker Rock Drill, Three Throttle Settings
- Dry or Wet Option.
- Left- Counterclockwise Rotation.
- Full Range of Chuck Options
Model & part-number identification
American Pneumatic APT 155 (M155) Left Rotation Rock Drill
Old Part No. 5229 New Part No. 1280583323 (7/8” × 3-1/4”) Dry
Old Part No. 5230 New Part No. 1280583177 (7/8” × 3-1/4”) Wet
Old Part No. 5231 New Part No. 1280583324 (7/8” × 4-1/4”) Dry
Old Part No. 5232 New Part No. 1280583325 (7/8” × 4-1/4”) Wet
Old Part No. 5233 New Part No. 1280583326 (1” × 4-1/4”) Dry
Old Part No. 5234 New Part No. 1280583327 (1” × 4-1/4”) Wet
Technical Specs
Compare complete drills. + Quote adds one item; review your quote list to adjust quantities.
| All Shank Sizes | 7/8" x 3-1/4" |
|---|---|
| All Shank Sizes | 7/8" x 4-1/4" |
| All Shank Sizes | 1" x 4-1/4" |
| Bore (inch) | 2-5/8 |
| Stroke Length (inch) | 3 |
| Impact frequency (blows/min) | 2100 |
| Air consumption (cfm) | 110-120 |
| Weight (lb) | 61 |
| Length (inch) | 22-3/8 |
| Air Inlet (inch) | 3/4 MNPT |
Complete tool configurations
Match the shank and part number. These are complete tools, not replacement parts.
| Model, shank & part number | Quote |
|---|---|
| 1557/8" x 3-1/4" HEX (A)Part 5229 | |
| 1557/8" x 4-1/4" HEX (B)Part 5231 | |
| 1551" x 4-1/4" HEX (C)Part 5233 |
Accessory Tools
“H” Thread Rods & Bits
Drill rodsAH series · 7/8" × 3-1/4" shank  | ||
|---|---|---|
| Length under collar Feet (Inches) | Rod part number & quote | |
| 1' (12") | AH-1 | |
| 1'6" (18") | AH-1.5 | |
| 2' (24") | AH-2 | |
| 3' (36") | AH-3 | |
| 4' (48") | AH-4 | |
| 5' (60") | AH-5 | |
| 6' (72") | AH-6 | |
Drill rodsBH series · 7/8" × 4-1/4" shank | ||
| Length under collar Feet (Inches) | Rod part number & quote | |
| 1' (12") | BH-1 | |
| 1'6" (18") | BH-1.5 | |
| 2' (24") | BH-2 | |
| 3' (36") | BH-3 | |
| 4' (48") | BH-4 | |
| 5' (60") | BH-5 | |
| 6' (72") | BH-6 | |
Drill rodsCH series · 1" × 4-1/4" shank | ||
| Length under collar Feet (Inches) | Rod part number & quote | |
| 1' (12") | CH-1 | |
| 1'6" (18") | CH-1.5 | |
| 2' (24") | CH-2 | |
| 3' (36") | CH-3 | |
| 4' (48") | CH-4 | |
| 5' (60") | CH-5 | |
| 6' (72") | CH-6 | |
| Rock bitsBits shown fit all “H” thread rods in this chart. Choose diameter independently of rod length. | ||
| Diameter (inches) |  Cross carbide insert bitFor broken & rough rock |  Button carbide insert bitFor fast penetration |
| 1-1/4" | HC-125 | HB-125 |
| 1-3/8" | HC-138 | HB-138 |
| 1-1/2" | HC-150 | HB-150 |
| 1-5/8" | HC-158 | HB-158 |
| 1-3/4" | HC-175 | HB-175 |
| 1-7/8" | HC-178 | HB-178 |
| 2" | HC-200 | HB-200 |
1-inch Rope / R25 / 100 Rods & Bits
Drill rodsAZ series · 7/8" × 3-1/4" shank  | ||
|---|---|---|
| Length under collar Feet (Inches) | Rod part number & quote | |
| 1' (12") | AZ-1 | |
| 1'6" (18") | AZ-1.5 | |
| 2' (24") | AZ-2 | |
| 3' (36") | AZ-3 | |
| 4' (48") | AZ-4 | |
| 5' (60") | AZ-5 | |
| 6' (72") | AZ-6 | |
Drill rodsBZ series · 7/8" × 4-1/4" shank | ||
| Length under collar Feet (Inches) | Rod part number & quote | |
| 1' (12") | BZ-1 | |
| 1'6" (18") | BZ-1.5 | |
| 2' (24") | BZ-2 | |
| 3' (36") | BZ-3 | |
| 4' (48") | BZ-4 | |
| 5' (60") | BZ-5 | |
| 6' (72") | BZ-6 | |
Drill rodsCZ series · 1" × 4-1/4" shank | ||
| Length under collar Feet (Inches) | Rod part number & quote | |
| 1' (12") | CZ-1 | |
| 1'6" (18") | CZ-1.5 | |
| 2' (24") | CZ-2 | |
| 3' (36") | CZ-3 | |
| 4' (48") | CZ-4 | |
| 5' (60") | CZ-5 | |
| 6' (72") | CZ-6 | |
| Rock bitsBits shown fit the 1-inch Rope / R25 / 100 rods in this chart. Choose diameter independently of rod length. | ||
| Diameter (inches) | Cross carbide insert bitFor broken & rough rock | Button carbide insert bitFor fast penetration |
| 1-1/4" | ZX-125 | ZB-125 |
| 1-3/8" | ZX-138 | ZB-138 |
| 1-1/2" | ZX-150 | ZB-150 |
| 1-5/8" | ZX-158 | ZB-158 |
| 1-3/4" | ZX-175 | ZB-175 |
| 1-7/8" | ZX-178 | ZB-178 |
| 2" | ZX-200 | ZB-200 |
1 Piece Plug Bits
| A series · 7/8" × 3-1/4" shank | |||
|---|---|---|---|
| Length under collar (inches) | Drill depth (inches) | Drill diameter (inches) | Part number & quote |
| 9" | 6" | 5/8" | A9-58 |
| 9" | 6" | 3/4" | A9-75 |
| 9" | 6" | 7/8" | A9-78 |
| 9" | 6" | 1" | A9-100 |
| 9" | 6" | 1-1/8" | A9-118 |
| 9" | 6" | 1-1/4" | A9-125 |
| 9" | 6" | 1-1/2" | A9-150 |
| 12" | 9" | 5/8" | A12-58 |
| 12" | 9" | 3/4" | A12-75 |
| 12" | 9" | 7/8" | A12-78 |
| 12" | 9" | 1" | A12-100 |
| 12" | 9" | 1-1/8" | A12-118 |
| 12" | 9" | 1-1/4" | A12-125 |
| 12" | 9" | 1-1/2" | A12-150 |
| 18" | 15" | 5/8" | A18-58 |
| 18" | 15" | 3/4" | A18-75 |
| 18" | 15" | 7/8" | A18-78 |
| 18" | 15" | 1" | A18-100 |
| 18" | 15" | 1-1/8" | A18-118 |
| 18" | 15" | 1-1/4" | A18-125 |
| 18" | 15" | 1-1/2" | A18-150 |
| 24" | 21" | 5/8" | A24-58 |
| 24" | 21" | 3/4" | A24-75 |
| 24" | 21" | 7/8" | A24-78 |
| 24" | 21" | 1" | A24-100 |
| 24" | 21" | 1-1/8" | A24-118 |
| 24" | 21" | 1-1/4" | A24-125 |
| 24" | 21" | 1-1/2" | A24-150 |
| 30" | 27" | 5/8" | A30-58 |
| 30" | 27" | 3/4" | A30-75 |
| 30" | 27" | 7/8" | A30-78 |
| 30" | 27" | 1" | A30-100 |
| 30" | 27" | 1-1/8" | A30-118 |
| 30" | 27" | 1-1/4" | A30-125 |
| 30" | 27" | 1-1/2" | A30-150 |
| B series · 7/8" × 4-1/4" shank | |||
| Length under collar (inches) | Drill depth (inches) | Drill diameter (inches) | Part number & quote |
| 9" | 6" | 5/8" | B9-58 |
| 9" | 6" | 3/4" | B9-75 |
| 9" | 6" | 7/8" | B9-78 |
| 9" | 6" | 1" | B9-100 |
| 9" | 6" | 1-1/8" | B9-118 |
| 9" | 6" | 1-1/4" | B9-125 |
| 9" | 6" | 1-1/2" | B9-150 |
| 12" | 9" | 5/8" | B12-58 |
| 12" | 9" | 3/4" | B12-75 |
| 12" | 9" | 7/8" | B12-78 |
| 12" | 9" | 1" | B12-100 |
| 12" | 9" | 1-1/8" | B12-118 |
| 12" | 9" | 1-1/4" | B12-125 |
| 12" | 9" | 1-1/2" | B12-150 |
| 18" | 15" | 5/8" | B18-58 |
| 18" | 15" | 3/4" | B18-75 |
| 18" | 15" | 7/8" | B18-78 |
| 18" | 15" | 1" | B18-100 |
| 18" | 15" | 1-1/8" | B18-118 |
| 18" | 15" | 1-1/4" | B18-125 |
| 18" | 15" | 1-1/2" | B18-150 |
| 24" | 21" | 5/8" | B24-58 |
| 24" | 21" | 3/4" | B24-75 |
| 24" | 21" | 7/8" | B24-78 |
| 24" | 21" | 1" | B24-100 |
| 24" | 21" | 1-1/8" | B24-118 |
| 24" | 21" | 1-1/4" | B24-125 |
| 24" | 21" | 1-1/2" | B24-150 |
| 30" | 27" | 5/8" | B30-58 |
| 30" | 27" | 3/4" | B30-75 |
| 30" | 27" | 7/8" | B30-78 |
| 30" | 27" | 1" | B30-100 |
| 30" | 27" | 1-1/8" | B30-118 |
| 30" | 27" | 1-1/4" | B30-125 |
| 30" | 27" | 1-1/2" | B30-150 |
| C series · 1" × 4-1/4" shank | |||
| Length under collar (inches) | Drill depth (inches) | Drill diameter (inches) | Part number & quote |
| 9" | 6" | 5/8" | C9-58 |
| 9" | 6" | 3/4" | C9-75 |
| 9" | 6" | 7/8" | C9-78 |
| 9" | 6" | 1" | C9-100 |
| 9" | 6" | 1-1/8" | C9-118 |
| 9" | 6" | 1-1/4" | C9-125 |
| 9" | 6" | 1-1/2" | C9-150 |
| 12" | 9" | 5/8" | C12-58 |
| 12" | 9" | 3/4" | C12-75 |
| 12" | 9" | 7/8" | C12-78 |
| 12" | 9" | 1" | C12-100 |
| 12" | 9" | 1-1/8" | C12-118 |
| 12" | 9" | 1-1/4" | C12-125 |
| 12" | 9" | 1-1/2" | C12-150 |
| 18" | 15" | 5/8" | C18-58 |
| 18" | 15" | 3/4" | C18-75 |
| 18" | 15" | 7/8" | C18-78 |
| 18" | 15" | 1" | C18-100 |
| 18" | 15" | 1-1/8" | C18-118 |
| 18" | 15" | 1-1/4" | C18-125 |
| 18" | 15" | 1-1/2" | C18-150 |
| 24" | 21" | 5/8" | C24-58 |
| 24" | 21" | 3/4" | C24-75 |
| 24" | 21" | 7/8" | C24-78 |
| 24" | 21" | 1" | C24-100 |
| 24" | 21" | 1-1/8" | C24-118 |
| 24" | 21" | 1-1/4" | C24-125 |
| 24" | 21" | 1-1/2" | C24-150 |
| 30" | 27" | 5/8" | C30-58 |
| 30" | 27" | 3/4" | C30-75 |
| 30" | 27" | 7/8" | C30-78 |
| 30" | 27" | 1" | C30-100 |
| 30" | 27" | 1-1/8" | C30-118 |
| 30" | 27" | 1-1/4" | C30-125 |
| 30" | 27" | 1-1/2" | C30-150 |
Longer lengths available for most tools. Call 800-241-9669 for help matching your tool.
Need help matching a model or part?
Talk to Mining Auger & Tool Works.
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