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Boring Bars & Bushings
 

 
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REDUCTION BUSHINGS
Part Number A B C Weight (lbs.)
50RB-156 .500 .156 1.18 .1
50RB-187 .500 .187 1.18 .1
50RB-250 .500 .250 1.18 .1
50RB-312 .500 .312 1.18 .1
50RB-375 .500 .375 1.18 .1
62RB-08mm .625 8mm 1.42 .1
62RB-10mm .625 10mm 1.42 .1
62RB-12mm .625 12mm 1.42 .1
62RB-156 .625 .156 1.42 .1
62RB-187 .625 .187 1.42 .1
62RB-219 .625 .219 1.42 .1
62RB-250 .625 .250 1.42 -1
62RB-312 .625 .312 1.42 -1
62RB-375 .625 .375 1.42 -1
62RB-438 .625 .438 1.42 -1
62RB-500 .625 .500 1.42 -1
REDUCTION BUSHINGS
Part Number Coolant
Part No.		 Bore Min.
Diameter		 Bore Max.*
Diameter		 Reduction
Bushing		 Max. Bore
Depth		 A
(dia.)		 C Bar
Material		 Insert
Type / Size		 Insert
Screw		 Insert Screw
Wrench
CB15-18C056 CB15-18C056C .188 .218 XXRB-156 1.50 .156 6.00 Carbide CDCD 05 028-919 018-002
SB18-18C052 -- .188 .218 XXRB-187 .50 .187 2.50 Steel CDCD 05 028-919 018-002
CB18-21C054 -- .218 .232 XXRB-187 2.00 .187 4.00 Carbide CDCD 05 028-919 018-002
SB18-23C052 -- .232 .300 XXRB-187 1.00 .187 2.50 Steel CDCD 05 028-919 018-002
CB18-23CO54 CB18-23C054C .232 .300 XXRB-187 2.00 .187 4.00 Carbide CDCD 05 028-919 018-002
SB18-28TO53 -- .280 .300 XXRB-187 1.00 .187 3.50 Steel TDAB 05 028-920 018-007
CB18-29TO54 CB18-29T054C .290 .310 XXRB-187 2.00 .187 4.00 Carbide TDAB 05 028-920 018-007
SB25-29CO53 -- .290 .310 XXRB-250 1.25 .250 3.00 Steel CDCD 05 028-919 018-002
SB25-30TO54 -- .300 .362 XXRB-250 1.25 .250 4.00 Steel TDAB 05 028-920 018-007
CB25-30CO54 CB25-30C054C .300 .362 XXRB-250 2.50 .250 4.00 Carbide CDCD 05 028-919 018-002
CB25-31TO54 CB25-31T054C .310 .372 XXRB-250 2.50 .250 4.00 Carbide TDAB 05 028-920 018-007
SB31-36T054 -- .362 .430 XXRB-312 1.75 .312 4.00 Steel TDAB 05 028-920 018-007
CB31-37TO56 CB31-37TO56C .372 .440 XXRB-312 3.25 .312 6.00 Carbide TDAB 05 028-920 018-007
SB37-43T105 SB37-43T105C .430 .580 XXRB-375 2.00 .375 5.00 Steel TPGH 11 028-921 018-003
CB37-44T107 CB37-44T107C .440 .590 XXRB-375 4.00 .375 7.00 Carbide TPGH 11 028-921 018-003
SB50-58T106 SB50-58T106C .580 .717 XXRB-500 2.50 .500 5.00 Steel TPGH 11 028-921 018-003
CB50-59T107 CB50-59T107C .590 .717 XXRB-500 5.00 .500 7.00 Carbide TPGH 11 028-921 018-003
SB62-71T117 SB62-71T117C .717 1.000 -- 3.50 .625 7.00 Steel TPGH 11 028-921 018-003
CB62-71T118 CB62-71T118C .717 1.000 -- 6.00 .625 8.00 Carbide TPGH 11 028-921 018-003
-- CB62-83T117C .83 1.45 -- 3.50 .625 7.00 Carbide TPGH 11 028-921 018-003
-- SB62-83T114C .83 1.45 -- 2.50 .625 4.00 Steel TPGH 11 028-921 018-003
Recommended for Production. Maximum bore diameter above is based on a gage insert with .016" nose radius.
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