South Mining Supply — soluciones en perforación

Bits

Small-Diameter Bits

Bits DTH de menor diámetro

Featured application

Small-Diameter Bits

Drilling tools available in a wide range of diameters from 2 3/8" to 12", compatible with various shank types. They come in multiple face designs (concave, convex, flat and double gauge) to optimize penetration and durability according to rock hardness. Key applications: Underground mining, open-pit mining, micropiles, anchoring and water wells.

  • Models

    6

  • Applications

    6

  • Línea

    Bits

Comparison table

Small-Diameter Bits

Small-Diameter Bits

ProductDIAMETER (INCHES)DIAMETER MMSHANKWEIGHT
60 – 76 BR1 / BR22 3/8" – 3"60 – 76BR1, BR22,2 – 2,8 kg
90 – 127 DHD 3.5 / 3403 1/2" – 5"90 – 127DHD 3.5, DHD 3403,4 – 9,9 kg
140 – 165 DHD 340 / 3505 1/2" – 6 1/2"140 – 165DHD 340, DHD 35012,5 – 21,2 kg
165 – 190 DHD 360 / QL606 1/2" – 7 1/2"165 – 190DHD 360 - QL6026,3 – 32,1 kg
200 – 305 DHD 380 / QL807 7/8" – 12"200 – 305DHD 380 - QL8033,8 – 80,2 kg

Application and procedure

Descripción visual de Small-Diameter Bits

  • CONCAVE FACE

    CONCAVE FACE

    General-purpose bit face for medium-hard and homogeneous rock. Offers good hole deviation control and good flushing capacity.

  • CONVEX FACE

    CONVEX FACE

    Ideal for soft to medium-hard rock, with low to medium air pressure. High penetration, maximum resistance to steel wash and less wear on the gauge buttons, though with little hole deviation control.

  • DOUBLE GAUGE FACE

    DOUBLE GAUGE FACE

    Face shape designed for medium to hard rock, ideal for high air pressure. Fast penetration, good wear resistance and a stepped gauge design

  • FLAT FACE

    FLAT FACE

    Face shape ideal for hard and abrasive rock, with good performance at high air pressures. Offers high penetration rates and good resistance to steel wear.

Models

Productos de Small-Diameter Bits