Expansion SEC-MultiDrill MEL Type SMD Type Carbon Steel, Aloy Steel Tempered Hardened Steel Stainless Ti Heat-resistant Cast Ductile Aluminum Copper Composite W/ Oil Hole 1.5D 3D 5D Up to 0.28% From 0.29% Steel Up to 45HRC From 46HRC Steel Alloy Steels Iron Cast Iron Alloy Alloy CFRP Indexable MEL G S S G G G S Recommended Cutting Conditions J69 8D 12D ● Drill Heads Indexable Head MEL Type DC h7 140° PL LF ● Drill Heads MEL Type ø23.2 to 28.7mm (mm) ● Drill Heads MEL Type ø28.8 to 30.8mm (mm) Diameter Stock Cat. No. Shoulder Length Tip Applicable Holders Diameter Stock Cat. No. Shoulder Length Tip Applicable Holders DC(mm) LF PL DC(mm) LF PL 23.2 D SMDT 2320 MEL 4.2 28.8 D SMDT 2880 MEL 12.6 5.2 SMDH280 □ 23.3 D 2330 MEL 4.2 28.9 D SMDT 2890 MEL 5.3 23.4 D 2340 MEL 4.3 29.0 D 2900 MEL 5.3 23.5 D 2350 MEL 11.0 4.3 SMDH230 □ 29.1 D 2910 MEL 5.3 23.6 D 2360 MEL 4.3 29.2 D 2920 MEL 5.3 23.7 D 2370 MEL 4.3 29.3 D 2930 MEL 13.1 5.3 SMDH290 □ 23.8 D 2380 MEL 4.3 29.4 D 2940 MEL 5.4 23.9 D SMDT 2390 MEL 4.3 29.5 D 2950 MEL 5.4 24.0 D 2400 MEL 4.4 29.6 D 2960 MEL 5.4 24.1 D 2410 MEL 4.4 29.7 D 2970 MEL 5.4 24.2 D 2420 MEL 4.4 29.8 D 2980 MEL 5.4 24.3 D 2430 MEL 11.0 4.4 SMDH240 □ 29.9 D SMDT 2990 MEL 5.4 24.4 D 2440 MEL 4.4 30.0 D 3000 MEL 5.5 24.5 D 2450 MEL 4.5 30.1 D 3010 MEL 5.5 24.6 D 2460 MEL 4.5 30.2 D 3020 MEL 5.5 24.7 D 2470 MEL 4.5 30.3 D 3030 MEL 13.5 5.5 SMDH300 □ 24.8 D 2480 MEL 4.5 30.4 D 3040 MEL 5.5 24.9 D SMDT 2490 MEL 4.5 30.5 D 3050 MEL 5.6 25.0 D 2500 MEL 4.5 30.6 D 3060 MEL 5.6 25.1 D 2510 MEL 4.6 30.7 D 3070 MEL 5.6 25.2 D 2520 MEL 4.6 30.8 D 3080 MEL 5.6 25.3 D 2530 MEL 11.3 4.6 SMDH250 □ Grade : ACX80 25.4 D 2540 MEL 4.6 25.5 D 2550 MEL 4.6 25.6 D 2560 MEL 4.7 25.7 D 2570 MEL 4.7 25.8 D 2580 MEL 4.7 25.9 D SMDT 2590 MEL 4.7 J 26.0 D 2600 MEL 4.7 26.1 D 2610 MEL 4.7 26.2 D 2620 MEL 4.8 Drilling 26.3 D 2630 MEL 11.7 4.8 SMDH260 □ 26.4 D 2640 MEL 4.8 26.5 D 2650 MEL 4.8 26.6 D 2660 MEL 4.8 Solid 26.7 D 2670 MEL 4.9 26.8 D 2680 MEL 4.9 Special 26.9 D SMDT 2690 MEL 4.9 27.0 D 2700 MEL 4.9 Indexable 27.1 D 2710 MEL 4.9 Reamer 27.2 D 2720 MEL 4.9 27.3 D 2730 MEL 12.2 5.0 SMDH270 □ Brazed 27.4 D 2740 MEL 5.0 27.5 D 2750 MEL 5.0 Others 27.6 D 2760 MEL 5.0 27.7 D 2770 MEL 5.0 27.8 D 2780 MEL 5.1 27.9 D SMDT 2790 MEL 5.1 28.0 D 2800 MEL 5.1 28.1 D 2810 MEL 5.1 28.2 D 2820 MEL 5.1 28.3 D 2830 MEL 12.6 5.2 SMDH280 □ 28.4 D 2840 MEL 5.2 28.5 D 2850 MEL 5.2 28.6 D 2860 MEL 5.2 28.7 D 2870 MEL 5.2 Grade : ACX80 Applicable Holder J74, J75 J73