Page 228 - Parlec Catalog

Small Diameter Boring System

226 Small Diameter Boring Bars & Bushings, .078” (2 mm to 11 mm)

BORING BARS & REDUCTION BUSHINGS

Min. Bore Min. Bore
Diameter Diameter
C C
A A
5°
Insert Type & Size Insert Type & Size 5°
80° Diamond Insert Triangle Insert
BORING BARS
FROM .187 - .433" (4.7 - 11 MM) DIAMETER
Bore Dia. Bore Dia. Insert
Coolant Part Min. Max. * Reduction Max. Bore Bar Mate- Insert Insert Screw
Part Number Number Bushing Depth A Dia. C rial Type/Size Screw Wrench
CB15-18C056 – .188" .232" XXRB-156 1.50" .156" 6.00" Carbide CDCD 05 028-919 018-002
SB18-23C052 – .232" .300" XXRB-187 1.00" .187" 2.52" Steele CDCD 05 028-919 018-002
CB18-23CO54 – .232" .300" XXRB-187 2.00" .187" 4.00" Carbide CDCD 05 028-919 018-002
CB25-30CO54 – .300" .362" XXRB-250 2.50" .250" 4.00" Carbide CDCD 05 028-919 018-002
CB25-31TO54 – .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" Steele TDAB 05 028-920 018-007
CB31-37T056 – .372" .440" XXRB-312 3.25" .312" 6.00" Carbide TDAB 05 028-920 018-007
*Recommended for Production. For maximum range, see page 20. Minimum bore diameter above is based on a gage insert with .016” nose radius.
5°
C
A Min. Bore
5° Diameter

BORING BARS
FROM .078 - .197" (2 - 5 MM) DIAMETER
Part Number Bore Dia. Min. Bore Dia. Max. Boring Bar Holder Max. Bore Depth A Dia. C Length Grade
CB2-078-393-KW10 .078 (2) .118 (3) 12RBX-02MM .393 (10) .078 (2) 1.97 (50) Carbide
CB3-118-590-KW10 .118 (3) .197 (5) 12RBX-03MM .590 (15) .118 (3) 1.97 (50) Carbide

METRIC BORING BAR HOLDER
C
USE WITH 62RB-12MM OR 16RB-12MM
Part Number A B C D
B A D 12RBX-02MM 2 mm .472 (12) .62 (15.7) .62 (15.7)
12RBX-03MM 3 mm .472 (12) .62 (15.7) .62 (15.7)

REDUCTION BUSHINGS FOR SOLID INCH SHANKS
C Part Number A B C Weight lbs.
50RB-156 .500 .1562 .18 0.05
50RB-187 .500 .1875 .18 0.05
A B 50RB-250 .500 .2500 .18 0.05
50RB-312 .500 .3120 .18 0.05
50RB-250 .500 .2500 .18 0.05
62RB-156 .625 .1562 1.42 .1
62RB-187 .625 .1875 1.42 .1
62RB-250 .625 .2500 1.42 .1
62RB-312 .625 .3120 1.42 .1
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