Rockdrills
S21B:
| S21B 'Blower' Rockdrill | |||
| ITEM NO. | DESCRIPTION | SECO PART NO. | RDE PART NO. |
| 1 | Handle Grip | S21-20 | 212547 |
| 2 | Water Stem (Wet Drilling) | S21-28B | 212600 |
| 3 | Copper Washer | S21-50 | 212704 |
| 4 | Water Tube Rubber Small (Wet Drilling) | S21-45 | 213045 |
| 5 | Thrust Washer (Wet Drilling) | S24-46 | 213049 |
| 6 | Throttle Valve Handle | S21-24 | 153006 |
| 7 | Handle Bolt | S21-25M | 153007 |
| 8 | Washer Stem Nut (Wet Drilling) | S21-29C | 212700 |
| 9 | Water Tube | S21-43 | 215879 |
| 10 | Water Tube Cap Screw (Wet Drilling) | S21-42 | 213042 |
| 11 | Cleaved Locknut | 124-M10 | 124-M10 |
| 12 | Throttle Valve | S21-22 | 213002 |
| 13 | Throttle Valve Plunger | S21-29 | 151913 |
| 14 | Spring | S21-30 | 155712 |
| 15 | Backhead | A1869 | A1869 |
| 16 | Pawl | S21-33 | 212014 |
| 17 | Pawl Plunger Spring | D1611 | 215700 |
| 18 | Pawl Plunger | S21-34 | 211912 |
| 19 | Ratchet Ring | S21-23 | 232100 |
| 20 | Valve Box Locating Pin | S21-28 | 213028 |
| 21 | Valve Plug | S21-10 | 233900 |
| 22 | Side Rod | C1280M | 217830 |
| 23 | Tee Bar Handle | B876 | 212575 |
| 24 | Water Tube Retainer (Dry Drilling) | S21-49 | 211749 |
| 25 | Water Tube Spacer (Dry Drilling) | S30-33 | S30-33 |
| 26 | Water Tube Rubber Large | S21-44 | 213044 |
| 27 | Air Bend Nut | S21-38 | 212800 |
| 28 | Copper Washer | S21-91 | 212804 |
| 29 | Air Bend | S21-37A | 212900 |
| 30 | Rifle Bar | S21-32 | 212300 |
| 31 | Valve Box | S21-9 | 233800 |
| 32 | Valve | S21-11 | 233700 |
| 33 | Rifle Nut | S21-36A | 210100 |
| 34 | Piston | S21-5 | 212201 |
| 35 | Seal | D2170 | D2170 |
| 36 | Cylinder (Non-muffled) | E555 | E555 |
| 36 | Cylinder (Muffled) | E555M | E555M |
| 37 | Cylinder Washer Liner | S21-108 | 210308 |
| 38 | Front Cylinder Washer | B2629 | 213499 |
| 39 | Chuck Nut | S21-6A | 210277 |
| 40 | Chuck | B1764 | 212196 |
| 41 | Fronthead | A526 | A526 |
| 42 | Chuck Bush | S21-111 | 213332 |
| 43 | Steel Retainer | S21-13 | S21-13 |
| 44 | Nut | 125-M16 | 219116 |
| 45 | Guide Plate | S21-101 | 215913 |
| 46 | Steel Retainer Spring | S21-17 | 219166 |
| 47 | Side Rod Nut | S21-187M | 217940 |
| 48 | Bolt Buch | S21-100 | 215911 |
| 49 | Steel Retainer Bolt | S21-14 | 215910 |
| 50 | Split Pin | 225-M3, 2-36 | 225-M3, 2-36 |
| 51 | Handle Grip (Half) | S21-20 | 212547 |
| 52 | Washer | 141-M20 | 141-M20 |
| 53 | Bolt | 102-M20-65 | 102-M20-65 |
| 54 | Nut Nyloc | 121-M20 | 121-M20 |
| 55 | Lock Washer | 143-M20 | 143-M20 |
| 56 | Foot Bar | B7128 | 215912 |