American Pneumatic
137 Series Rock Drill
See complete drill models, specifications and accessory options below.
Model 137s are used in general construction, utility work, and plant maintenance. They are designed for drilling through granite, hard-faced rock, quarry drilling and drilling secondary holes for blasting. They are also used with dowel hole drilling machines. Adaptable to wet drilling application by attaching APT valve, wet tube and swivel assembly.
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) | 2-3/8 |
| Stroke Length (inch) | 2-5/8 |
| Impact frequency (blows/min) | 2300 |
| Air consumption (cfm) | 85-90 |
| Weight (lb) | 38 |
| Length (inch) | 19-3/4 |
| Air Inlet (inch) | 1/2 NPT |
Complete tool configurations
Match the shank and part number. These are complete tools, not replacement parts.
| Model, shank & part number | Quote |
|---|---|
| 1377/8" x 3-1/4" HEX (A)Part 5223 | |
| 1377/8" x 4-1/4" HEX (B)Part 5225 | |
| 1371" x 4-1/4" HEX (C)Part 5227 |
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.
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