Toolholders for Back Turning [TKFB Insert] Screw Clamp ¢ KTKF / KTKF Goose-neck Holder T F1 F2 F1 B 2° KTKFR/L1616JX-‥(F2=10mm) 60° KTKFR/L2020JX-‥(F2=12mm) Fig.1 shows above figure h h H1 KTKFR/L2020‥ L2 shows above figure KTKFR/L1010JX-‥ 2 L1 shows above figure l Right-hand shown Right-hand Insert for Right-hand Toolholder, Left-hand Insert for Left-hand Toolholder. E T 8 B F1 F1 T L1T 8 1° B F1 F1 1° Fig.2 T KTKFL1620JX-12 L1 1° shows above figure Tools 1° H1 h Small H1 h l Left-hand shown Left-hand Insert for Left-hand Toolholder. l Toolholder Dimensions Std. Dimension (mm) Spare Parts Drawing Clamp Screw Wrench Description Applicable R L H1=h B L1 L2 F1 T Inserts KTKF& 1010JX-12 N N 10 10 15 10 1212JX-12 N N 12 12 12 1616JX-12 16 16 120 - 16 6 SB-4590TRWN LTW-10S TKFB12&… N N 2020JX-12 N N 20 20 20 KTKF& 1010JX-16 N N 10 10 20 10 1212JX-16 12 12 12 Fig.1 N N 120 8 SB-4590TRWN LTW-10S TKFB16&… 1616JX-16 N N 16 16 - 16 2020JX-16 N N 20 20 20 KTKF& 1212F-12 N N 12 12 85 - 12 6 SB-4590TRWN LTW-10S TKFB12&… 1212F-16 N N 8 TKFB16&… KTKFL 1216JX-12 N 12 16 120 - 16 6 Fig.2 SB-4590TRWN LTW-10S TKFB12L… 1620JX-12 N 16 20 20 · Dimension T shows the distance from the Toolholder to the cutting edge. l Applicable Inserts (Ref. to Page B92) l Applicable Inserts (Molded Chipbreaker, P: Polished edge, Ref. to Page B93) Insert Description Corner-R(rε) Insert Description Corner-R(rε) Photo shows Right-hand (mm) (mm) TKFB 12R15005M <0.05 0.4 rε B φd W a T TKFB 12R28005(P)-GQ 0.05 rH 4° B Id 12R28005M <0.05 15° 12R28015(P)-GQ 0.15 a θ W T 4° 60° 12R28010M <0.1 H TKFB 16R38005(P)-GQ 0.05 H TKFB 16R38005M <0.05 16R38015(P)-GQ 0.15 l Right-hand shown l Right-hand shown 16R38010M <0.1 Recommended Cutting Conditions E45 φd rH B TKFB 12L28005MR <0.05 u Combination of Toolholders and Inserts a T W T 60° 4° 60° Id 12L28010MR <0.1 Toolholder Right-hand Toolholder Left-hand TKFB 16L38005MR <0.05 Insert Right-hand Insert Left-hand H H l Left-hand shown 16L38010MR <0.1 TKFB12R TKFBR12eLcommended Cutting Conditions E45 N : Std. Item E12