Premium Quality HSS Cobalt Jobber Drill Sets 5 Piece Set - Includes Sizes 4mm 5mm 6mm 8mm & 10mm (Supplied In Plastic Case) 10 Piece Set - Includes Sizes 1 - 10mm In 1mm Increments (Supplied In Plastic Case) 13 Piece Set - Includes Sizes 1.5 - 6.5mm In 0.5mm Increments (+3.2mm & 4.8mm) (Supplied In Plastic Case) 19 Piece Set - Includes Sizes 1 - 10mm In 0.5mm Increments (Supplied In Metal Case) 25 Piece Set - Includes Sizes 1 - 13mm In 0.5mm Increments (Supplied In Metal Case) 51 Piece Set - Includes Sizes 1 - 6mm In 0.1mm Increments (Supplied In Metal Case) For particularly tough or hard metal drilling applications such as stainless steel, Cr-Ni and special acid resistant steels Fully ground from solid material M35 alloyed HSS steel with 5% Cobalt content High heat resistance Manufactured to DIN338 Dimensionally precise 135° split point from 3mm and above eradicates the need to pre-drill or centre punch. Prevents walking and enables faster penetration
