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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
• Ø 5,0 to Ø 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 Ø 5 -10 Ø 10 - 15 Ø 15-20 Ø 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