electric hammer bit lengthened wall-through stone concrete chopping bit square handle round handle entryway perforated square indenting hammer alloy 电锤钻头加长穿墙石材混凝土冲击钻头方柄圆柄过墙打孔方锤头合金

[square handle four pits-] yg8 high carbon steel [two holes with round handle double-slot-] yg8 high carbon steel

work length 70 -- 6-8-10*145 each /8+10+12+14/x150 short 6+8+10+12+14] x145 long 5-piece set send 6 to 16 * 145mm long 6-piece set [cartridge. short 2-piece type] 6 * 110mm 2 pieces. short 6x150mm 2 pieces. short 8x150mm [single barrel]-14 x145-total length 145 [single barrel] 16x145 -- total length 145 6 -- 12*190mm4 set actual length 190 6-16*190 mm-6-piece set actual length 190 12x190mm actual length 190 14x190mm actual length 190 16x1900mm actual length 190 18*190mm actual length 190 20 * 1900mm actual length 190 22 * 190mm actual length 190 25x190 actual total length 190 one for each of 250 long 8-10-12 boutique 250 long each 10-12+14 boutique 10+12+14 each with a total length of 340 16+18+20 each with a total length of 340 12cm * 340mm for wall wear 24 14*340mm for 24 wall wear 1 8 * 340mm-for wall wear 24 20 * 340mm-for wall wear 24 22 * 340mm for 24 wall wear 25*340mm-24 wall wear 28 * 340mm-for wall wear 24 30 * 340mm-for wall wear 24 single 6x145-total length 145mm 8x145 working length 70 [total length 145 single]] -10x145 working length 70 [total length 145 single]] 12x145 working length 70 [total length 145 single]] 6x190 length -- actual length 190 8x190 length -- actual length 190 10*190 length -- actual length 190 10cm * 340 mm-for wall wear 24 16*340 mm-for wall wear 24 32*340mm-24 wall wear 35 * 340mm-for wall wear 24