Forbes & Company Limited

Fort, Mumbai, Maharashtra

Totem Burrs are manufactured using high quality carbide on latest world class CNC machines with auto loaders to guarantee the best accuracy, precision and repeatability. Totem burrs are manufactured using the best quality of ram material. The EN-24 shanks used are precision turned and ground to ensure the least possible run out.We offer Tin and TiCN coating which has many benefits like Increase tool life, reduced cutting forces, improved machinability and better chip evacuation. We offer burrs in many shapes as follows.

Spiral Point Taps is also known as gun nose or bull nose or chipdriver. These taps are dimensionally the same as a hand tap, second lead, but have the cutting face ground back relative to the axis of the tap, for the lead portion.

This gives the flute a better cutting action, requiring less power, and pushes the cut material forward, allowing free flow of coolant along the flutes to the cutting edge.

The flutes are not ground as deeply as for hand taps, giving the tap greater strength. It can therefore be run at higher speeds. Spiral point taps are ideal for machine tapping of through holes, or blind holes where there is enough clearance beyond the threaded portion to accommodate the swarf.

• Thread Chamfer is of 4.5 threads & cutting load is distributed
• Shallow flute depth, hence stronger tap
• Chip clogging is eliminated as the tap pushes the chip forward and thus enhancing tool life.

SPIRAL FLUTE These taps are used to produce a thread close to the bottom of a blind hole and therefore have a very short lead.

The right hand spiral cut of the flutes acts to force the swarf away from the cutting teeth to the rear of the flutes and out of the hole. They are better on materials which form long continuous stringy swarf, rather than chips.

They are also better to tap a thread in a hole where there is a break in the material, e.g. another hole, as the spiral fluting helps the tap to pick up on the other side. Spiral flute taps can have slow or fast helix angles.

• Can be used in both blind holes & also in through holes
• Chips are pushed upwards due to spiral flute Chip clogging avoided
• Full thread depth can be achieved and this design prevents tap breakage

These are straight flute general purpose taps which can be used for both machine or hand tapping. They are generally the most economical tool for use on production runs, but are best on materials that produce chips, or where the swarf breaks readily. Where deep holes are to be tapped, in materials which produce stringy swarf, other types of taps may be needed, especially for coarse threads.

Hand taps can be supplied in sets of three; bottom, second and taper leads, or individually.

TAPER TAPShave a lead of 7-10 threads at 5 degrees per side. The taper lead distributes the cutting force over a large area, and the taper shape helps the thread to start. They can therefore be used to start a thread prior to use of second or bottom leads, or for through holes.

SECOND TAPShave a lead of 3-5 threads at 8 degrees per side. They are the most popular and can be used for through holes, or blind holes where the thread does not need to go right to the bottom.

BOTTOM TAPShave a chamfer (lead) of 12 threads, the angle of the lead being around 18 degrees per side. They are used to produce threads close to the bottom of blind holes.

Forming Taps otherwise known as Roll, Fluteless or Polygon taps. Used for the chipless production of threads in ductile materials such as copper, aluminium, soft brass or steel. Threads produced by fluteless taps are formed by plastic deformation, they are not cut.

These taps do not have flute or cutting edges but have special roll forming lobes with circular land. They are operated at high speeds and are better at maintaining gauge qualification.

Because they produce no chips they are very suitable for blind hole application as well as through hole application.

• Can be used in both blind holes & also in through holes
• Chips are pushed upwards due to spiral flute Chip clogging avoided
• Full thread depth can be achieved and this design prevents tap breakage

Straight flute taps dimensionally same as hand taps & with a lead chamfer of 1.1/2 threads. The flute & rake angle are designed as per application.

These Taps are recommended for tapping on grey cast iron, S G iron & steel. The chips produced are short or powder type with the help of special design provided in the tap

• Can be used in both blind holes & also in through holes
• Chips are pushed upwards due to spiral flute Chip clogging avoided
• Full thread depth can be achieved and this design prevents tap breakage

FEATURES

• 3 Flutes
• Center Cutting
• Coarse Pitch
• Roughing for Aluminium
• Uncoated

FUNCTIONS & BENEFITS

• High MRR
• Excellent for roughing and finishing of Alumnium
• Superior Tool Life

RANGE

• Standard 6mm 25mm available in regular/long reach
• Specials 4mm 25mm available in regular/long reach

FEATURES

• 3-4 Flutes
• Center Cutting
• Sinosoidal Pitch
• Superior Coating

FUNCTIONS & BENEFITS

• High MRR
• Stable cutting at high cutting speeds
• Superior Tool Life

RANGE

• Standard 8mm 20mm available in standard
• Specials 6mm 25.4mm available in standard

FEATURES

• Made from premium grade High Speed Steel
• Multi cut geometry for ply cutting & lower friction to reach betterperformance of endurance & removal of chips
• Available in One Touch Shank (Universal shank Dia 3/4 or 19.05mm )

FUNCTIONS & BENEFITS

• Applicable to hole cutting & process of annular groove on various magnetic drills
• Meets requirements of hole cutting on various materials

RANGE 12mm to 50mm

CUTTING DEPTH 25mm & 50mm

FEATURES

• Premium quality Tungsten Carbide tips for ply cutting & lower friction
• Multi Cut geometry for increases chip removal

FUNCTIONS & BENEFITS

• Applicable to hole cutting & process of annular groove
• Suitable on various materials
• Universal shank 3/4 (19.05mm) for various magnetic drill machines

RANGE 11mm to 40mm

CUTTING DEPTH 40mm & 55mm