Kwa upande mmoja unaounganishwa na chombo cha kuchimba mwamba na upande mwingine unaounganishwa na kipande cha kuchimba kilicho na taper, mguu wa kuchimba taper hupeleka nguvu kutoka kwa chombo cha kuchimba mwamba hadi kipande, hivyo kazi ya kuchimba inafanywa. Mguu wa kuchimba ulio na taper ni maendeleo zaidi ya mguu wa kuchimba wenye umoja. Kwa kawaida huwa na shingo iliyosafishwa ili kudumisha nafasi sahihi ya uso wa mgongo wa shiko katika chombo cha kuchimba mwamba.
Urefu wa mashimo ya kuchimba yenye umbo la taper hupimwa kutoka kwenye collar hadi mwisho wa bit, ambao kwa kawaida ni kati ya mita 0.6 hadi 3.6.

Parameta
Mikondo ya shank: Hex.19mm, Hex. 22mm, Hex.25mm
Miwango ya taper: 7°, 11°, 12°.
Urefu: 400 – 8000mm.

Mfafanuzi:
Majukumu ya kuchimba katika ujenzi wa barabara, ujenzi, uchimbaji madini, uchimbaji mawe, n.k.
| Rodhi za kuchimba zilizopinda za 22mm (7/8″) | L | Kiwango cha Taper | Uzito (kg) | |
| mm | mguu/inchi | |||
| H22×108 Shank | 500 | 1′ 5/8″ | 7o | 1.5 |
| 800 | 2′7 1/2″ | 2.4 | ||
| 1000 | 3′3 3/8″ | 3 | ||
| 1200 | 3′11 1/4″ | 3.6 | ||
| 1500 | 4′ 11″ | 4.5 | ||
| 1800 | 5′10 7/8″ | 5.5 | ||
| 2000 | 6′6 3/4″ | 6.1 | ||
| 2200 | 7′2 5/8″ | 6.7 | ||
| 2500 | 8′2 3/8″ | 7.6 | ||
| 3000 | 9′10 1/8″ | 9.1 | ||
| 3500 | 11′5 3/4″ | 10.6 | ||
| 4000 | 13′1 1/2″ | 12.1 | ||
| 4500 | 14′9 1/8″ | 13.6 | ||
| 5000 | 16′4 5/8″ | 15.1 | ||
| 6000 | 19′8 1/4″ | 18.2 | ||
| 7000 | 22′11 5/8″ | 21.2 | ||
| 8000 | 26′ 3″ | 24.2 | ||
| H22×108 Shank | 800 | 2′7 1/2″ | 12o | 2.4 |
| 1200 | 3′11 1/4″ | 3.6 | ||
| 1600 | 5′ 3″ | 4.9 | ||
| 2200 | 7′2 5/8″ | 6.7 | ||
| 2400 | 7′10 1/2″ | 7.3 | ||
| 3200 | 10′ 6″ | 9.7 | ||
| H22×108 Shank | 1800 | 5′10 7/8″ | 7o | 5.5 |
| 2000 | 6′6 3/4″ | 6.1 | ||
| 2500 | 8′2 3/8″ | 7.6 | ||
| 3000 | 9′10 1/8″ | 9.1 | ||
| 3500 | 11′5 3/4″ | 10.6 | ||
| 4000 | 13′1 1/2″ | 12.1 | ||
| 5000 | 16′4 5/8″ | 15.1 | ||