£18.10£67.00
Specification: Material: HSS 4241 / High Speed Steel 4241; Coating: Blue Nano; Shank Size: 1/4" Hex Shank; Quantity: 3Pcs; Step Drill Step Size: 4-12mm:(3,4,5,6,7,8,9,10,11,12mm, 10 Steps); 4-20mm:(4,6,8,10,12,14,16,18,20mm, 9 Steps); 4-32mm:(4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm,...