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                Contact Us
                Hammond & Company Ltd
                Finway Road
                Hemel Hempstead
                Hertfordshire
                HP2 7PT
                England
                +44 (0)1442 212 211
                +44 (0)1442 252 003
                Send a Message
                We'll respond within 48 business hours
                Diagram

                Speedfeed Drills


                The Speedfeed drill is a twin fluted, carbide tipped coolant fed drill. The micro grain solid carbide tip is multi regrindable. The tubular shank is formed and heat treated from high quality chrome molybdenum steel into an overlapping figure of eight cross section.

                The maximum flute length is 900mm subject to the application being suitable. Please discuss new applications with Hammond & Company's technical department.

                A regrinding service is available at our Hemel Hempstead factory.

                ? Tungsten Carbide tipped
                ? Multi-regrindable
                ? ? 5,0 to ? 30,0 diameter
                ? High penetration rates
                ? Good size control and surface finish

                Ordering Information


                When ordering Speedfeed drills please state diameter, flute length and driver design. Alternatively, go towards the end of this website and order by Product Codes.

                Driver Styles

                Driver Styles REF d h h1 h2
                HAMMOND STANDARD
                FA 16 40    
                FB 25 50
                FC 35 60
                     
                WELDON
                GC 16 48 24  
                GD 20 50 25
                GE 25 56 32 17
                GF 32 60 36 19
                JF 40 70 40 19
                Driver Styles REF d h h1 h3
                View PDF
                SANDVIK TYPE
                JD 16 48 34 40
                FF 20 48 34 40
                FG 25 53 38 45
                FH 32 55 38 45
                GUNDRILL TYPE
                FT 10 40 24  
                GU 16 45 31
                FV 20 70 34
                FW 25 70 34
                FX 32 70 34
                   
                   

                Speedfeed Cutting Data

                 
                MATERIAL CUTTING
                SPEED
                FEED - mm PER REV
                  M/MIN ? 5 -10 ? 10 - 15 ? 15-20 ? 20-30
                LOW CARBON STEEL 60 - 110 0.03 - 0.13 0.10 - 0.28 0.15 - 0.35 0.15 - 0.40
                CAST IRON 40 - 80 0.06 - 0.24 0.10 - 0.40 0.20 - 0.45 0.30 - 0.50
                ALUMINIUM
                (DIFFICULT TO CHIP)
                80 - 160 0.03 - 0.10 0.04 - 0.15 0.06 - 0.20 0.08 - 0.30
                ALUMINIUM
                CAST BRASS
                110 - 220 0.06 - 0.30 0.10 - 0.35 0.20 - 0.50 0.30 - 0.50
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