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Drifting and tunneling
Drifting and tunneling
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R25 (1") bit thread .........................................................................19
Sandvik Alpha. α250 bit thread ..................................................21
R28 (1 1/8") bit thread ..................................................................22
Sandvik Alpha. α280 bit thread ....................................................23
R32 (1 1/4") bit thread .................................................................24
Sandvik Alpha. α330 bit thread ...................................................27
Sandvik Jumbo. R35 (1 3/8") bit thread ......................................29
Sandvik Extra. R35 (1 3/8") bit thread .........................................31
Sandvik RT300 bit types ................................................................32
top hammer drilling tools • 19
2-1_
407
Drifting and tunnelingR25 (1") bit thread
RT300 button bit, type 52
Flushinghole, mm Buttons, mm Dimensions Bit Part No. Front Gauge Front Gauge D classi- No Size No Size No Size No Size Angle mm in fication
1x5 1x6 2x7 5x8 35° 35 13/8" HMCA 7732-5235-S481x5 1x6 2x7 5x9 30° 38 11/2" HMCA 7732-5238-S481x5 1x6 2x8 5x9 35° 41 15/8” HMCA 7732-5241-S482-
1_38
4
D
Cross bit, Heavy Duty1x5 2x5 – – – 35 13/8" – 7732-1435-421x5 2x5 – – – 38 11/2" – 7732-1438-421x5 2x5 41 15/8” – 7732-1441-422-
1_4
D
RT300 button bit, type 52 for bolt ERB 120/120+1x5 1x6 2x7 5x9 30° 37 129/64" HMCA 7732-5237-S48
Shank adapter Drifter rodCross bit
Button bit
Reaming tools
Coupling sleeve
Dimensions Part No.L Dmm ft in mm in
L
2-1_
337
R25DR32
Drifter rod, R32 - Hex 25 - R25
2475 8' 121/32" 25 1" 7853-6224-202630 8' 79/16” 25 1” 7853-6226-203090 10' 121/32" 25 1" 7853-6231-20
Flushing hole Ø 8.8 mm.
2-1_
384
D
20 • top hammer drilling tools
Drifting and tunneling R25 (1") bit thread
150 – 529/32" 44 147/64" 7993-3644
L
2-1
_17
D
R32 coupling sleeve
Dimensions Part No.L Dmm ft in mm in
Reaming tools for cut holes / Pilot adapter, 6° taper
– – 26 11/32" 7822-2526
2-1_116
D
ThreadR25
4x8 8x9 25° 64 21/2" 7722-4864-S454x10 8x10 30° 76 3" 7722-4876-S454x10 8x10 30° 89 31/2" 7722-4889-S45
2-1_
110
D
Reaming tools for cut holes / Reaming bit, 6° taper
Dimensions Part No.Buttons, mm DFront Gauge Angle mm in
top hammer drilling tools • 21
Drifting and tunnelingSandvik Alpha. α250 bit thread
2-1_
407b
RT300 button bit, type 52
Flushinghole, mm Buttons, mm Dimensions Bit Part No. Front Gauge Front Gauge D classi- No Size No Size No Size No Size Angle mm in fication
1x4,5 1x6 2x7 5x7 45° 33 15/16" HMCA 7764-4433-S481x5 1x6 2x7 5x9 35° 35 13/8" HMCA 7764-4435-S481x5 1x6 2x7 5x9 30° 37 129/64" HMCA 7764-5237-S481x6 1x6 2x7 5x9 35° 38 11/2" HMCA 7764-5238-S481x6 1x6 2x8 5x9 35° 41 15/8” HMCA 7764-5241-S48
2-1_
384
D
Cross bit1x5 2x5 – – – 33 15/16" – 7764-1633-421x5 2x5 – – – 35 13/8" – 7764-1435-421x5 2x5 – – – 38 11/2" – 7764-1438-421x5 2x5 41 15/8” – 7764-1441-42
2-1_
4
D
Shank adapter Drifter rod
Cross bit
Button bit
Reaming toolsCoupling sleeve
Dimensions Part No.L Dmm ft in mm in
L
2-1_
337b
DR32 250
Drifter rod, R32 - Hex 25 - α250
2475 8' 17/16" 25 1" 7853-1724-202630 8' 79/16" 25 1" 7853-1726-203190 10' 519/32" 25 1" 7853-1731-203700 12' 11/2" 25 1" 7853-1737-20
Flushing hole Ø 8.6 mm.
150 – 529/32" 44 147/64" 7993-3644
L
2-1
_17
D
R32 coupling sleeve
Reaming tools for cut holes / Pilot adapter, 6° taper
– – – 26 11/32" 7822-2726
2-1_116
DThreadα250
4x8 8x9 25° 64 21/2" 7722-4864-S454x10 8x10 30° 76 3" 7722-4876-S454x10 8x10 30° 89 31/2" 7722-4889-S45
2-1_
110
D
Reaming tools for cut holes / Reaming bit, 6° taper
Dimensions Part No.Buttons, mm DFront Gauge Angle mm in
L
2-1_
337b
DR32 250
Drifter rod, R32 - Hex 28 - α250
2475 8' 17/16" 28 11/8" 7853-1824-202630 8' 79/16" 28 11/8" 7853-1826-202935 9' 79/16" 28 11/8" 7853-1829-203190 10' 519/32" 25 1" 7853-1831-20
Flushing hole Ø 8.8 mm.
22 • top hammer drilling tools
R32 Coupling sleeve
150 – 529/64" 44 147/64" 7993-3644
L
2-1
_17
D
2-1_116
D
Reaming tools for cut holes / Pilot adapter 6° taper
– – – 26 11/32" 7822-1526Thread
R28
Reaming tools for cut holes / Reaming bit 6° taper
2-1_
110
D
Drifting and tunnelingR28 (1 1/8") bit thread
RT300 button bit, type 52
Flushinghole, mm Buttons, mm Dimensions Bit Part No. Front Gauge Front Gauge D classi- No Size No Size No Size No Size Angle mm in fication
1x5 1x6 2x7 5x9 35° 38 11/2" MCAN 7739-5238-R481x5 1x6 2x7 5x9 30° 38 11/2" HMCA 7739-5238-S481x5 1x6 2x8 5x9 35° 41 15/8" HMCA 7739-5241-S482-
1_38
4
D
Button bit
Reaming tools
Coupling sleeve Drifter rodShank adapter
Dimensions Part No.L Dmm ft in mm in
Drifter rod, R32 - Hex 28 - R28
L
2-1_
339
R28R32 D
3090 10' 121/32" 28 11/8" 7853-7631-203700 12' 11/2" 28 11/8" 7853-7637-20
Flushing hole Ø 8.8 mm.
2-1_
407b
Cross bit
Cross bit , Heavy Duty
2-1_
4
D
1x5 2x5 – – – 38 11/2" – 7739-1438-42
4x8 8x9 25° 64 21/2" 7722-4864-S454x10 8x10 30° 76 3" 7722-4876-S454x10 8x10 30° 89 31/2" 7722-4889-S45
top hammer drilling tools • 23
Drifting and tunnelingSandvik Alpha. α280 bit thread
R32 Coupling sleeve
150 – 529/64" 44 147/64" 7993-3644
L
2-1
_17
D
RT300 button bit, type 52
Flushinghole, mm Buttons, mm Dimensions Bit Part No. Front Gauge Front Gauge D classi- No Size No Size No Size No Size Angle mm in fication
1x5 1x6 2x7 5x9 35° 38 11/2" MCAN 7765-5238-R481x5 1x6 2x7 5x9 30° 38 11/2" HMCA 7765-5238-S481x5 1x6 2x8 5x9 35° 41 15/8" HMCA 7765-5241-S481x5 1x6 2x8 5x10 35° 43 111/16" HMCA 7765-5243-S48
2-1_
384
D
Button bit
Reaming tools
Coupling sleeve Drifter rodShank adapter
Dimensions Part No.L Dmm ft in mm in
Drifter rod, R32 - Hex 28 - α280
L
2-1_
339
R28R32 D
3090 10' 121/32" 28 11/8" 7853-2631-203700 12' 11/2" 28 11/8" 7853-2637-20
Flushing hole Ø 8.8 mm.
2-1_
407b
Cross bit
α280
2-1_116
D
Reaming tools for cut holes / Pilot adapter 6° taper
– – – 26 11/32" 7822-2826Thread
R28
Reaming tools for cut holes / Reaming bit 6° taper
2-1_
110
D
Cross bit , Heavy Duty
2-1_
4
D
1x5 2x5 – – – 38 11/2" – 7765-1438-42
4x8 8x9 25° 64 21/2" 7722-4864-S454x10 8x10 30° 76 3" 7722-4876-S454x10 8x10 30° 89 31/2" 7722-4889-S45
α280
24 • top hammer drilling tools
Drifting and tunnelingR32 (1 1/4") bit thread
RT300 button bit, type 52
Flushinghole, mm Buttons, mm Dimensions Bit Part No. Front Gauge Front Gauge D classi- No Size No Size No Size No Size Angle mm in fication
1x5 1x7.5 2x9 5x10 35° 43 111/16" HMCVA 7733-5243-S481x5 1x7.5 2x9 5x11 30° 45 13/4" HMCVA 7733-5245-S481x5 1x7.5 2x9 5x11 30° 45 13/4" HCV 7733-5245-S651x6 1x7.5 2x9 5x11 35° 48 17/8" HMCVA 7733-5248-S481x6 1x7.5 2x10 5x12 35° 51 2" HMCVA 7733-5251-S481x6 1x7.5 2x10 5x12 35° 51 2" HCV 7733-5251-S65
2-1_
386
D
RT300 button bit, type 533x4.5 – 3x8 6x10 25° 45 13/4" HMCAN 7733-5345-S483x4.5 – 3x8 6x10 30° 45 13/4" MSCAN 7733-5345-R483x5 – 3x9 6x10 30° 48 17/8" HMCAN 7733-5348-S483x6 – 3x9 6x10 35° 51 2" HMCAN 7733-5351-S483x6 – 3x9 6x10 35° 51 2" MSCAN 7733-5351-R48
2-1_
316
D
RT300 button bit, type 542x6 – 2x9 6x9 40° 43 111/16" MSCAN 7733-5443-R482x6 – 2x9 6x10 35° 45 13/4" MSCAN 7733-5445-R482x7 – 2x9 6x10 40° 48 17/8" MSCAN 7733-5448-R482x7 – 2x10 6x10 40° 51 2" MSCAN 7733-5451-R48
2-1_
294
D
Cross bit, Heavy Duty1x5 4x6 – – – 45 13/4" – 7733-1345A-42
2-1_
24
D
MF-rod
Reaming tools
Shank adapter
Coupling sleeve Drifter rod
Button bit
Cross bit
top hammer drilling tools • 25
Drifting and tunnelingR32 (1 1/4") bit thread
Drifter rod, R38 - Hex 35 - R32
Dimensions Part No.L Dmm ft in mm in
3090 10' 121/32" 35 13/8" 7854-9631-203700 12' 11/2" 35 13/8" 7854-9637-204305 14' 131/64" 35 13/8" 7854-9643-204915 16' 11/2" 35 13/8" 7854-9649-20L
R32R38
2-1_
342
D
Flushing hole Ø 9.5 mm.
Drifter rod, R38 - Hex 32 - R32
3700 12' 11/2" 32 11/4" 7854-8637-204305 14' 131/64" 32 11/4" 7854-8643-204915 16' 11/2" 32 11/4" 7854-8649-20
Flushing hole Ø 9.6 mm.
MF-rod, T38 - Hex 35 - R32
3700 12' 11/2" 35 13/8" 7324-6537-204305 14' 131/64" 35 13/8" 7324-6543-20
R 32LT 38
2-1_
301
D
Flushing hole Ø 9.5 mm.Female end OD 56 mm.
Drifter rod, T38 - Hex 35 - R323090 10' 121/32" 35 13/8" 7324-9631-203700 12' 11/2" 35 13/8" 7324-9637-204305 14' 131/64" 35 13/8" 7324-9643-204915 16' 11/2" 35 13/8" 7324-9649-205525 18' 133/64" 35 13/8" 7324-9655-206135 20' 11/2" 35 13/8" 7324-9661-20
2-1_
344
LR32T38 D
Flushing hole Ø 9.5 mm.
Coupling sleeve
L
2-1_
361
D
170 – 63/4" 55 25/32" 7994-3655191 – 71/2" 52 2" 7314-3652
R38T38
Drifter rod, T38 - Hex 32 - R32
3700 12' 11/2" 32 11/4" 7324-8637-204305 14' 131/64" 32 11/4" 7324-8643-20
Flushing hole Ø 9.6 mm.
2-1_
343
LT38 R32D
LR32R38
2-1_
342
D
26 • top hammer drilling tools
Drifting and tunnelingR32 (1 1/4") bit thread
Reaming tools for cut holes / Reaming bit, 6° taper
2-1_
110
D
4x8 8x9 25° 64 21/2" 7722-4864-S454x10 8x10 30° 76 3" 7722-4876-S454x10 8x10 30° 89 31/2" 7722-4889-S45
Reaming tools for cut holes / Reaming bit, 12° taper
2-1_
118
D
4x10 8x12 35° 89 31/2" 7721-4889-S454x12 8x12 35° 102 4" 7721-4802-S454x12 8x12 35° 127 5" 7721-4827-S45
Buttons, mm Dimensions Part No.Front Gauge DNo Size No Size Angle mm in
– – – 26 11/32" 7822-3526
2-1_116
D
Reaming tools for cut holes / Pilot adapter, 6° taper
ThreadR32
Reaming tools for cut holes / Pilot adapter, 12° taper
2-1_117
D– – – 40 137/64" 7821-3440
ThreadR32
Reaming tools for cut holes / Reaming bit, R32
Flushing hole, mm Buttons, mm Dimensions Part No.Front Gauge Front Gauge DNo size No Size No Size No Size Angle mm in
2x6 2x6 1x13 16x13 35° 102 4" 7733-5602-S45
D
2-1_
538
top hammer drilling tools • 27
RT300 button bit, type 52
Flushinghole, mm Buttons, mm Dimensions Bit Part No. Front Gauge Front Gauge D classi- No Size No Size No Size No Size Angle mm in fication
1x5 1x7.5 2x9 5x10 35° 43 111/16" HMCVA 7766-5243-S481x5 1x7.5 2x9 5x11 30° 45 13/4" HMCVA 7766-5245-S481x5 1x7.5 2x9 5x11 30° 45 13/4" HCV 7766-5245-S651x6 1x7.5 2x9 5x11 35° 48 17/8" HMCVA 7766-5248-S48
2-1_
386b
D
RT300 button bit, type 53 3x4.5 1x5 3x8 6x10 30° 45 13/4" MSCAN 7766-5345A-R483x4.5 1x5 3x8 6x10 25° 45 13/4" HMCAN 7766-5345A-S483x5 1x5 3x9 6x10 30° 48 17/8" MSCAN 7766-5348A-R483x5 1x5 3x9 6x10 30° 48 17/8" HMCAN 7766-5348A-S483x6 1x5 3x9 6x10 35° 51 2" MSCAN 7766-5351A-R483x6 1x5 3x9 6x10 35° 51 2" HMCAN 7766-5351A-S48
2-1_
316b
D
RT300 button bit, type 542x6 – 2x9 6x9 40° 43 111/16" MSCAN 7766-5443-R482x6 – 2x9 6x10 35° 45 13/4" MSCAN 7766-5445-R48
2-1_
294b
D
2-1_409b
Reaming toolsShank adapter Coupling sleeve Drifter rod
Button bit
Drifter rod, T38 - Hex 35 - α330
2-1_
470
Lα 330T38 D
3090 10' 121/32" 35 13/8" 7324-4131-203700 12' 11/2" 35 13/8" 7324-4137-204305 14' 131/64" 35 13/8" 7324-4143-204915 16' 11/2" 35 13/8" 7324-4149-205525 18' 133/64" 35 13/8" 7324-4155-20
Flushing hole Ø 9.5 mm.
Cross bit
1x5 4x6 45 13/4" 7766-1345A-421x5 2x7.5 48 17/8" 7766-1448-42
2-1_
24
D
Dimensions Part No.L Dmm ft in mm in
Drifting and tunnelingSandvik Alpha. α330 bit thread
3090 10' 121/32" 39 11/2" 7324-4231-203700 12' 11/2" 39 11/2" 7324-4237-204305 14' 131/64" 39 11/2" 7324-4243-204915 16' 11/2" 39 11/2" 7324-4249-205525 18' 133/64" 39 11/2" 7324-4255-206135 20' 11/2" 39 11/2" 7324-4261-206400 21' – 39 11/2" 7324-4264-20
2-1_
469
LT38 D α 330
Drifter rod, T38 - Round 39 - α 330
Flushing hole Ø 10.3 mm.
28 • top hammer drilling tools
Reaming tools for cut holes / Reaming bit, 12° taper
2-1_
118
D
4x10 8x12 35°8931/2" 7721-4889-S454x12 8x12 35°1024" 7721-4802-S454x12 8x12 35°1275" 7721-4827-S45
Reaming tools for cut holes / Pilot adapter, 12° taper
2-1_117b
D 40 137/64” 7821-3040
Threadα330
Reaming tools for cut holes / α330 reaming bit2x62x61x13 16x13 35°1024" 7766-5602-S45
D
2-1_
538b
Drifting and tunnelingSandvik Alpha. α330 bit thread
Flushinghole, mm Buttons, mm Dimensions Part No. Front Gauge Front Gauge D No Size No Size No Size No Size Angle mm in
T38 coupling sleeve
L
2-1_
361
D191 – 71/2" 52 2" 7314-3652
Dimensions Part No.L Dmm ft in mm in
top hammer drilling tools • 29
Drifting and tunnelingSandvik Jumbo. R35 (1 3/8") bit thread
RT300 button bit, type 53
Flushinghole, mm Buttons, mm Dimensions Bit Part No. Front Gauge Front Gauge D classi- No Size No Size No Size No Size Angle mm in fication
3x5 1x5 3x9 6x10 30° 48 17/8" HMCAN 7738-5348A-S483x5 1x5 3x9 6x10 30° 48 17/8" MSCAN 7738-5348A-R483x5 – 3x9 6x10 30° 48 17/8" HMCAN 7738-5348-S483x5 – 3x9 6x10 30° 48 17/8" MSCAN 7738-5348-R483x6 – 3x9 6x10 35° 51 2" HMCAN 7738-5351-S483x6 – 3x9 6x10 35° 51 2" MSCAN 7738-5351-R48
2-1_
316
D
RT300 button bit, type 521x5 1x7.5 2x9 5x11 35° 48 17/8" HMCVA 7738-5248-S481x5 1x7.5 2x10 5x12 35° 51 2" HMCVA 7738-5251-S48
2-1_
511
D
2-1_
506
Reaming tools
Shank adapterCoupling sleeve
Drifter rod, Hex.
Button bitDrifter rod, Round
T38 coupling sleeve
191 – 71/2" 52 2" 7314-3652
4305 14' 131/64" 39 11/2" 7324-7243-204915 16' 11/2" 39 11/2" 7324-7249-205525 18' 133/64" 39 11/2" 7324-7255-202-
1_46
9
LR35T38 D
Drifter rod, T38 - Round 39 - R35
Dimensions Part No.L Dmm ft in mm in
Flushing hole Ø 14.5 mm.
Drifter rod, T38 - Hex 35 - R35
2-1_
470
LR35T38 D
4305 14' 131/64" 35 13/8" 7324-8543-204915 16' 11/2" 35 13/8" 7324-8549-205525 18' 133/64" 35 13/8" 7324-8555-206135 20' 11/2" 35 13/8" 7324-8561-20
Flushing hole Ø 9.5 mm.
L
2-1_
227
D
T38 T38
Cross bit, Heavy Duty1x5 2x7.5 – – – 48 17/8" – 7738-1448-42
2-1_
24
D
30 • top hammer drilling tools
Drifting and tunnelingSandvik Jumbo. R35 (1 3/8") bit thread
2-1_117
D
ThreadR35
Reaming tools for cut holes / Pilot adapter, 12° taper
Buttons, mm Dimensions Part No.Front Gauge DNo Size No Size Angle mm in
– – – 40 137/64" 7821-5440
Reaming tools for cut holes / Reaming bit, 12° taper
2-1_
118
D
4x10 8x12 35° 89 31/2" 7721-4889-S454x12 8x12 35° 102 4" 7721-4802-S454x12 8x12 35° 127 5" 7721-4827-S45
Reaming tools for cut holes / Reaming bit, R35
Flushing hole, mm Buttons, mm Dimensions Part No.Front Gauge Front Gauge DNo size No Size No Size No Size Angle mm in
2x6 2x6 1x13 16x13 35° 102 4" 7738-5602-S45
D
2-1_
538
top hammer drilling tools • 31
Drifting and tunneling Sandvik Extra. R35 (1 3/8") bit thread
Button bit, Retrac R35
Flushinghole, mm Buttons, mm Dimensions Bit Part No. Front Gauge Front Gauge D classi- No Size No Size Size Size Angle mm in fication
3x6 – – 3x9 3x11 25° 54 21/5" HMCFAN 7738-7854-S483x6 – – 3x9 3x11 30° 54 21/5" MSCFAN 7738-7854-R48
2-1_
536
Drifter rod
Drifter extension rod
Shank adapterButton bitretrac
Button bit
Reaming tools
Drifter extension rod
Dimensions Part No.L Dmm ft in mm in
2-1_
308b
R 35L
DT 35
Drifter rod, T35 - Round 39 - R354305 14’ 131/64 39 11/2” 7327-5243-204915 16' 11/2" 39 11/2" 7327-5249-205525 18' 133/64” 39 11/2" 7327-5255-206135 20' 11/2" 39 11/2" 7327-5261-20
Flushing hole Ø 14.5 mm.Female end OD 48,2 mm.
Drifter Extension rod, T35 - Round 39 - T35
2-1_
308c
T 35L
DT 35
3050 10' – 39 11/2" 7327-4731-20
Flushing hole Ø 14.5 mm.Female end OD 48,2 mm.
32 • top hammer drilling tools
Drifting and tunneling Sandvik RT300 bits
Sandvik RT300 bits for drifting and tunneling are available in three basic designs
Type 52
Designed for hard and abrasive rock
2-1_
542
Type 53
Allround design for most types of rock
2-1_
543
Type 54
Designed for soft and less abrasive rock
2-1_
544
Non standard bitsTheproductsshowninthiscataloguearestockstandarditems.Withinourstandardrangeitispossibletofindproductssuitableforthemajorityofdrillingconditions.Outsideofthisrangewehoweverundertaketomanufacturenonstandardproductstosuitveryspecialconditions.
OptionsFollowingoptionsareavailablefornonstandardRT300bitsfordriftingandtunneling.Whenorderingnon-standardproducts,aletterthatdescribestheoptionmustbeincludedinthePartNo.
Example:AnR32,RT300type53,45mmbitwithanextraholeforsideflushing,willgetthePartNo.:7733-5345A-S48.
A = OneextraholeforsideflushingB = TwoextraholesforsideflushingC = Groovesforfrontflushing(53type>48mm)D = Groovesforfrontflushingandoneextraholeforsideflushing(53type>48mm)E = Groovesforfrontflushingandtwoextraholesforsideflushing(53type>48mm)F = Onesizesmallergaugebuttons(53/54type)
Note:Ifabithasoneholeforsideflushingasstandard,anAinthePartNo.willgivethebitoneextraholeforsideflushing,e.g.thebitwillhavetwoholesforsideflushing.
Options - Cemented Carbide GradesCementedcarbidegradeisindicatedwiththelastletterandtwodigitsinthePartNo.Followingcementedcarbidegradesareavailableasnon-standard.
S65 = SphericalDP65buttonson52and53type
R65 = BallisticDP65buttonson53type>43mm
R55 = BallisticDP55buttonson53and54type>43mm
