China R25 R28 R32 T38 T45 T51 Pilot Adapter Integral Dome Hole Opener Reaming Bit

Reaming Drill Bit with R25/R28 / T45 / T51/ ST58

Reaming bits are widely used in quarrying or mining for blast hole drilling, with pilot adaptors, the drilling direction can be ensured and accurate. Pilot holes are drilled depth and then reamed out to a larger diameter in a second pass required when hole diameter exceeds the capabilities of the rock drill and drilling tools available.
This type of bit is used for making large cut holes in drifting and tunneling. A smaller hole is first drilled and then reamed to the final size in combination with a pilot adapter. Large diameter service holes from level to level for drainage, electrical cable or pipe lines routinely used to ream cut holes for development rounds and for long hole blasting of drop raise.
Applications
• Suitable for small hole range
• Widely used in Dimensional Stone Quarrying Industry
• Widely used in Underground Mining Industry
ModelDia.Gauge buttonfront buttontaperproducts no.
6° Taper reaming
button bits
(shperic or parabolic buttons)648*Φ9mm2*Φ10mm6°KTQ1264-6-1648*Φ9mm4*Φ8mm6°KTQ1264-6-2658*Φ9mm4*Φ8mm6°KTQ1265-6768*Φ10mm4*Φ10mm6°KTQ1276-6-1768*Φ10mm4*Φ9mm6°KTQ1276-6-2768*Φ11mm2*Φ11mm6°KTQ1276-6-3'767*Φ11mm4*Φ11mm6°KTQ1176-6-3''768*Φ14mm4*Φ13mm6°KTQ1276-6-4898*Φ12mm4*Φ12mm6°KTQ1289-6-1898*Φ12mm4*Φ11mm6°KTQ1289-6-2898*Φ12mm4*Φ10mm6°KTQ1289-6-3898*Φ13mm4*Φ10mm6°KTQ1289-6-4898*Φ12mm4*Φ11mm6°KTQ1289-6-51028*Φ14mm4*Φ12mm6°KTQ12102-6
12° Taper reaming
button bits
(shperic or parabolic buttons)898*Φ12mm4*Φ10mm12°KZQ1289-121028*Φ12mm4*Φ12mm12°KZQ12102-12-11028*Φ14mm4*Φ12mm12°KZQ12102-12-212710*Φ13mm8*Φ13mm12°KZQ18127-12-112710*Φ13mm10*Φ13mm12°KZQ18127-12-2
6° Taper chisel
reaming bits60carbide:12*8mm (4pcs)6°KTS460-664KTS464-665KTS465-670KTS470-676carbide:12*10mm (4pcs)KTS476-680KTS480-689KTS489-6
10° Taper chisel
reaming bits70carbide:12*8mm (6pcs)10°KTS670-1075KTS675-1080KTS680-1090KTS690-10100carbide:12*10mm (6pcs)KTS6100-10120KTS6120-10Pilot adaptors 6°chisel:Φ26/28*12*8mmL=240/300mm,thread:R25/28/32*12.7mm,6°Pilot adaptors 12°chisel:Φ35/40*15*10mmL=250mm,thread:R25/28/32*12.7mm,12°Thread chisel reaming bits60carbide:12*8mm (4pcs)RF25KTS460-25RF70KTS470-25RF80carbide:12*10mm (6pcs)RF32KTS680-32RF90KTS690-32RF100KTS6100-32RF120KTS6120-32RF130RF38KTS6130-38RF150KTS6150-38RFIntegral reaming button bits8912*Φ11mm2*Φ11mm+1*Φ10mmR32/R38*12.7KZQ8910212*Φ12mm2*Φ12mm+1*Φ10mmR32/R38*12.7KZQ102-110212*Φ14mm2*Φ10mm+1*Φ10mmR32/R38*12.7KZQ102-21278*Φ14mm8*Φ12mm+2*Φ12mmR38*12.7KZQ127
Dome reaming bit
(shperic or parabolic buttons)769*Φ13mm1*Φ13mmR32/T38/T45DFR768914*Φ13mm1*Φ13mmR32/T38/T45DFR8910216*Φ13mm1*Φ13mmR32/T38/T45DFR10212718*Φ13mm1*Φ13mmR32/T38/T45DFR12715218*Φ14mm2*Φ14mmT45/T51/ST58/ST68DFR152-11529*Φ16mm6*Φ16mmST58/ST68DFR152-2