12° Tapered Drill Bits

12° Tapered Drill Bit is a kind of drill bit that is used in conjunction with the down-the-hole impactor. It has the characteristics of straight drilling, fast drilling and deep hole drilling. And it is widely used in mining, quarry, hydropower engineering, and drilling water wells.
Category:
Carbide Button Choose Guide
ProductSpherical ButtonBallistic ButtonOgive Button
Applicable typesRegular typeRetrac typeRegular typeRetrac typeEspecially suitable for pneumatic rock driller
Hard Rock
Medium Hard Rock
Soft Rock
Abrasive Rock
Non-Abrasive Rock
Homogeneous Rock
Fissure Rock

Remarks:Other specification bits are available according to customer’s requirements.

 Physical Performance

ItemsMeasured Data
GF20BGF20G
D(g/cm3)14.9414.97
HC(Oe)143140
σs9.18.8
Ms/%9592
TRS(MPa)33003362
POROSITYA02B00C00A02B00C00
ETA PhaseNoneNone
Grain size(μm)2.53
MAX2014
Structure PatchesNoneNone
KICNoneNone
HRA90.390.4
HV3014401440

 Product Parameters

PZD:Tapered Bit;
Carbide button shape,D:Ballistic button,Z:Ogive Button;
Maximum diameter of bit,Unit:mm, exaple:036;
Type of powder discharging groove,TC:Regular type,XC:Inclined groove type;
Appendix code,default 01,for length and technologies distinction;
Button quantity,example:0502,05:gauge buttons,02:front buttons;
Bit body information,example:0722,07:internal taper degree,22:internal hole diameter.

 Specification Of 12° Tapered Drill Bits

ProductPart No.Diam.Button size(mm)Flushing holeHeight(mm)Weight(kg)
mminchGaugeFrontGaugeFront
12°Tapered Drill Bits-1PZDD030TC010301-07193013/16’’3×D71×D721500.19
PZDD032TC010301-07223211/4’’3×D71×D721550.22
PZDD034TC010301-072234111/32’’3×D81×D821550.25
PZDD036TC010301-07223617/16’’3×D81×D821550.28
PZDD038TC010301-07233811/2’’3×D91×D921550.33
PZDD040TC010301-07234019/16’’3×D91×D911600.36
PZDD042TC010301-072342121/32’’3×D91×D911600.38
12°Tapered Drill Bits-2PZDD030TC010402-07193013/16’’4×D72×D712500.19
PZDD032TC010402-07223211/4’’4×D72×D712550.22
PZDD034TC010402-072234111/32’’4×D72×D712550.25
PZDD036TC010402-07223617/16’’4×D72×D712550.28
PZDD038TC010402-07233811/2’’4×D82×D812550.33
PZDD040TC010402-07234019/16’’4×D82×D812600.36
PZDD042TC010402-072342121/32’’4×D82×D812600.37
12°Tapered Drill Bits-3PZDD030TC010502-07193013/16’’5×D72×D711500.2
PZDD032TC010502-07223211/4’’5×D72×D711550.23
PZDD034TC010502-072234111/32’’5×D72×D711550.26
PZDD036TC010502-07223617/16’’5×D82×D711550.29
PZDD038TC010502-07233811/2’’5×D82×D811550.34
PZDD040TC010502-07234019/16’’5×D82×D811600.36
PZDD042TC010502-072342121/32’’5×D92×D811600.38
12°Tapered Drill Bits-4PZDD032TC010602-07223211/4’’6×D72×D712550.23
PZDD034TC010602-072234111/32’’6×D72×D712550.26
PZDD036TC010602-07223617/16’’6×D72×D712550.29
PZDD038TC010602-07233811/2’’6×D82×D812550.34
PZDD040TC010602-07234019/16’’6×D82×D812600.36
PZDD042TC010602-072342121/32’’6×D92×D812600.38

Remarks:Other specification bits are available according to customers’ requirements.

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