SumiGrip Jr. STFH Type ● How to Install the Insert Cut-Off (Steel Holder/Tool Block Type) Insert Please mount the insert by lightly tapping it with a plastic or wooden hammer. STFH Hammer (Please confirm that you cannot remove the insert by hand.) Cut-off CW LF It is not necessary to force the end of the insert to touch the B holder. Please beware that excessively knocking in the insert can cause insert and holder breakage. H HF LF2 ■ Parts 150° Cut-Off ■ Holders Dimensions (mm) Cutting edge Holder Width Max. Height Width Length height Cat. No. Stock length of cut cut-off Applicable inserts Applicable tool blocks Wrench H B LF HF LF2 CW dia. STFH 26-2 D 26 1.6 109 21.4 108 2.0 40 WC F 2 STFH 26-3 D 26 2.4 109 21.4 108 3.0 70 WC F 3 SBN 20-26 STFH 26-4 D 26 3.4 109 21.4 108 4.0 70 WC F 4 SBU 20-26 STFH 26-5 D 26 4.3 109 21.4 108 5.0 70 WC F 5 SL-4 STFH 32-2 D 32 1.6 149 25.0 148 2.0 40 WC F 2 SBN 20-32 STFH 32-3 D 32 2.4 149 25.0 148 3.0 100 WC F 3 F STFH 32-4 STFH 32-5 D D 32 32 3.4 4.3 149 149 25.0 25.0 148 148 4.0 5.0 100 100 WC F WC F 4 5 SBN 25-32 SBU 20-32 SBU 25-32 Cut-Off Tools Note: STFH32-2 has a partly different appearance. See F47 for applicable inserts. ■ Tool Block SBN Type (integral type) ■ Parts ■ Tool Block SBU Type (split type) ■ Parts Grooving Ha Hb Ha Hb H H Cut-Off BCS15 Ha: Ha: Hc Hc L Center height 12.5 20 L Center height 12.5 20 Threading 18 18 BCS20 Dimensions (mm) Dimensions (mm) BCS25 Center Install Install Center Install Double Install Stock Stock ation ation Height Length ation ation Height Length Clamp height length height length Cat. No. position Clamp ended Wrench Cat. No. position Cap screw Wrench wedge Ha Hb Hc H L screw Ha Hb Hc H L SBN 20-26 D 20 20 10.0 45 80 SBU 20-26 D 20 20 10.0 45 80 BCS15 SBN 20-32 D 20 20 13.5 50 100 BWS30 WB8-20 LH040 SBU 20-32 D 20 20 13.5 50 100 BCS20 BX0622 LH050 SBN 25-32 D 25 25 8.5 50 110 SBU 25-32 D 25 25 8.5 50 110 BCS25 ■ Tool Block Type Selection Guidance Tool block (separate type) Tool block (mono-block type) SBN type Example: SBN20–32 General purpose lathe, etc. Turret type tool post, etc. SBN type SBU type SBU type Tool post Tool post ・ This tool block can be used for the machine tool post shown on the right. SBU type Example: SBU20–32 Tool block Tool block ・ This tool block can be used for the machine tool Spacer Wedge posts and shown on the right. ・ The holder can have a long overhang due to the wide (overhead clamp) (side clamp) clamping range of a larger top clamp. F46