Guhring 528 1/4" HSS GT50 Ex/Leng TH S/S Drill Drill for deep holes in soft materials and those producing long stringy swarf with a maximum hardness of 500N/mm2, such as mild steel, aluminium, aluminium alloys, zinc, refined copper, silumin, electron, argalium, soft synthetic materials and wood. Manufactured to DIN1869. GBP 79.99 1
10x Guhring 652 1/4" HSS GT100 Jobber S-Drill Series 652 HSS High Helix (Parabolic Flute) Straight Shank Jobber Drills Metric For drilling in difficult conditions when swarf congestion prevents an adequate flow of coolant. For use in steel and cast iron having a hardness of up to 1000N/mm2. Not recommended for nickel-chrome steels or similar material. Give greater wear resistance and longer tool life than Guhring product number 549 - HSS GT100 right hand jobber drills. Manufactured to DIN388. GBP 219.90 1