Colour Band Range Leaflet0 pages

IT® LTD

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Having damping and thermal conductivity, with high strength and resistance to wear

characteristics, Cast Iron is a material that is used extensively for mass produced components

which all require machining. The SOMTA white band range of taps and drills has

been designed to suit this demand.

WHITE BAND TAP CHARACTERISTICS

Material Types - Designed for highly abrasive materials such as Cast Iron and reinforced plastics

Flutes - Increased number of flutes reduces torque and increases tap life.

WHITE BAND CHARACTERISTICS (FOR BOTH TAP AND DRILL)

Material Properties - Used to tap materials with hardness up to 300HB, tensile strength

up to 10OON/mm2.

Surface Finish - TiAIN coating (standard) increases surface hardness of the tool to

around 87HRC with an excellent hot hardness working temperature and high

oxidation temperature making it suitable for dry machining.

WHITE BAND DRILL CHARACTERISTICS

FLUTE - Slow helix, parabolic flute designed with reinforced web for high

rigidity under extreme conditions.

POINT - The double angled "DX" point, 118°/ 70° minimizes wear on

the outer corners of the drill point in highly abrasive materials

such as Cast Iron and Reinforced Plastics. The point is web

thinned for easier penetration.

Green Band

The machinability of different steels is just as varied as their properties. Soft-tough construction

steels place completely different demands on the tools, and the green band combination

of taps and drills has been perfected for this range of steels.

GREEN BAND TAP CHARACTERISTICS

• HSSE - Vanadium content for toughness.

• Thread and flute configuration design for free cutting and structural steels in the general

purpose range of medium tensile strengths.

GREEN BAND CHARACTERISTICS (FOR BOTH TAP AND DRILL)

• Material Properties - Used to machine materials with hardness up to 250HB, tensile

strength up to 900N/mm2.

• Surface Finish - TiN Coating (standard) increases surface hardness of the tool

to around 85HRC with excellent resistance to abrasion and cold welding.

GREEN BAND DRILL CHARACTERISTICS

FLUTE - 33° helix, open profile designed with reinforced web for

high rigidity under extreme conditions

POINT - The 1 30° SPLIT POINT provides self centering and easier

penetration.

Drilling based on Jobber drill lengths

For deep hole drilling reduce speeds by

GENERAL MACHINING GUIDE

Drilling based on Jobber drill lengths

For deep hole drilling reduce speeds by

GENERAL MACHINING GUIDE

Tool Material

TAPPING

DRILLING

SOMTA PRODUCT CODES: TAPS: 578, 579 DRILLS: IW6

SOMTA PRODUCT CODES: TAPS: 561, 562, 563, 566, 567, 568 DRILLS: IG7

Manufacturers & Suppliers

of Drills, Reamers, End Mills,

Bore Cutters, Taps & Dies,

Toolbits, Solid Carbide Tooling,

Carbide Insert Tooling,

Custom Tools and

Surface Coatings

www.somta.co.za

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Head Office and Surface Coating Division

Somta House, 290-294 Moses Mabhida (Edendale) Road

Pietermaritzburg, 3201

Private Bag X401, Pietermaritzburg, 3200

South Africa

Tel: Factory: +27 33 355 6600

Fax: Factory: +27 33 394 0564

Tel: Sales: +27 11 390 8700 (Local)

Fax: Sales: +27 11 397 6720/1 (Local)

Tel: Sales: +27 33 355 6600 (Exports)

Fax: Sales: +27 33 394 7509 (Exports)

Email: exports@somta.co.za

Technical Information:

Email: tech@somta.co.za

Toll Free Number: 0800 331 399

Gauteng Sales Office

43 Bisset Road, Hughes Ext. 7, Boksburg, 1 459

P.O.Box 14212, Witfield, 1 467

South Africa

Tel: +27 11 390 8700

Fax: +27 11 397 6720/1

Sharecall: 086 010 4367

Email: jhbsales@somta.co.za

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SOMTA

yvorid Class Cutting Tools -

SABS

COLOUR BAND

RANGE