Speedfeed

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A twin-fluted, carbide-tipped, coolant-fed drill designed for high penetration rates in deep hole drilling. The micro grain solid carbide tip is multi-regrindable, and the tubular shank is formed and heat treated from high-quality chrome molybdenum steel into an overlapping figure-of-eight cross section. Available in diameters from 5.0 to 30.0mm with a maximum flute length of 900mm (subject to application suitability). Regrinding service available at Hammond's Hemel Hempstead factory. When ordering: State diameter, flute length, and driver design.

Twin-flute design delivers significantly higher penetration rates than single-flute gundrills
Micro grain solid carbide tip for superior hardness and edge retention
Multi-regrindable — extends tool life and reduces cost per hole
Tungsten carbide tipped for wear resistance in demanding materials
Figure-of-eight shank cross section provides excellent torsional rigidity and chip clearance simultaneously
Chrome molybdenum steel shank — formed and heat treated for maximum strength
Internal coolant feed delivers fluid directly to the cutting zone
Good size control and surface finish
Flute lengths up to 900mm for deep bore applications
Available in four driver style families to suit different machine configurations

We’re currently working on enabling direct online ordering for your convenience. Soon, you’ll be able to place orders directly on our website.

In the meantime, please use the enquiry form or contact us via email or phone to place your order. We appreciate your patience.

Email: info@hammco.com
Tel: +44 (0)1442 212211

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. 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
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