BoringSmal Diameter Turning BarsVery Smal Diameter Turning Stock BN2000 ø16 BN7000 Stock SUMIBORON Small Hole Boring Bars BNBX Type SUMIBORON 92˚ Brazed BNBX Fig 1 Min. Bore Dia. DMIN Internal Turning and Facing 3° DCON RE HLF E Holder ( SUMIBORON) Dimensions (mm) Cat. No.C Min.Bore Dia. Diameter HeightDMINDCONHOverallLengthLFNose RadiusREApplicableSleeveFig BNBX 020R ● ● 2.5 2.0 1.8 40 0.2 HBX 2016 1 BNBX 025R ● ● 3.0 2.5 2.2 40 0.2 HBX 2516 1 BNBX 030R ● ● 3.5 3.0 2.7 40 0.2 HBX 3016 1 BNBX 035R ● ● 4.0 3.5 3.2 40 0.2 HBX 3516 1 D BNBX 040R ● ● 4.5 4.0 3.7 40 0.2 HBX 4016 1 BNBX 045R ● ● 5.0 4.5 4.2 40 0.2 HBX 4516 1 BNBX 050R ● ● 5.5 5.0 4.7 60 0.2 HBX 5016 1 BNBX 055R ● ● 6.0 5.5 5.2 60 0.2 HBX 5516 1 R BNBX 060R ● ● 6.5 6.0 5.7 60 0.2 HBX 6016 1 BNBX 065R ● 7.0 6.5 6.2 60 0.2 HBB 6516 1 BNBX 070R ● 7.5 7.0 6.7 80 0.2 HBB 716 1 BNBX 075R ● 8.0 7.5 7.2 80 0.2 HBB 7516 1 BNBX 080R ● 8.5 8.0 7.7 80 0.2 HBB 816 1 S BNBX bars can be used with HBB type sleeves, but HBX type sleeves are recommended for bars below ø6mm. Fig 1 DCB Fig 1 ø16 DCB T 15 15 15 100 100 V Sleeve (HBX Type) Dimensions (mm) Sleeve (HBB Type) Dimensions (mm) Cat. No.W Bore Dia.DCB Applicable Bar Fig Cat. No. Bore Dia.DCB Applicable Bar Fig HBX 2016 ● 2.0 BNBX 020R 1 HBB 6516 ● 6.5 BNBX 065R 1 HBX 2516 ● 2.5 BNBX 025R 1 HBB 716 ● 7.0 BNBX 070R 1 HBX 3016 ● 3.0 BNBX 030R 1 HBB 7516 ● 7.5 BNBX 075R 1 HBX 3516 ● 3.5 BNBX 035R 1 HBB 816 ● 8.0 BNBX 080R 1 HBX 4016 ● 4.0 BNBX 040R 1 HBB Type sleeve can also be used with ø2.5 to 6.0mm holders. HBX 4516 ● 4.5 BNBX 045R 1 HBX 5016 ● 5.0 BNBX 050R 1 HBX 5516 ● 5.5 BNBX 055R 1 HBX 6016 ● 6.0 BNBX 060R 1 Spare Parts (for Adapter Sleeve) Flat Screw Set Screw Wrench BT06035T TRD Applicable Sleeve (For TorxNmHoles) LH (For Hex BT0404 Socket) HBX2○○○ BFTX0409N 1.5 BT06035T TRD15 HBX3○○○ HBX4○○○HBX5○○○ BFTX0409N 3.0 BT06035T TRD15 HBX6○○○ HBB○○○○ Q Q BT0404 LH020 E66 N m Recommended Tightening Torque (N·m)