... ,10,12,14,18,20. Tin coaded HSS end mill set with wood box. Model No.PcsDescription181-010020 2& ... 4 Flute each of 3/16" to 3/4" by 16ths181-0101102Flute 3 ... to 3/4" by 16ths181-010310 2&4 Flute each of 1/4", 3/8", 1/2", 5/8", 3 ... ,14,18,20mm 181-010520 2&4 Flute each of 3,4,5,6,8,10,12,14,16 ... ", 3/8" 181-310120 20 2 Flute 2 each of 3/16" to 3/4" by 16ths 20pc HSS ...