ICON - Brooke Cutting Tools USA · TOOLS Suited Materials CARBON STEEL FREE CUTTING STEEL CAST IRON COPPER Suited Materials CARBON STEEL ... Refer to the User Guide for detailed information.

ICONLEGEND & DESCRIPTION

Incl

i-na

tion

High SpeedSteel

5% CobaltHigh Speed Steel

8% CobaltHigh Speed Steel

8% Cobalt HSS,Eccentric ReliefSharpening

3% VanadiumHigh Speed Steel

9-10% Cobalt,0.2-0.8 µm Grain size.

Steam (HOMO)Temper No Surface Treatment

Titanium AluminiumNitride (Black Finish)

Titanium Nitride(Gold Finish)

TiN Coated for alength of 4 x diameter

Steam (HOMO)TemperStraw Colour

Type NStandard

Type WFor Soft Materials

Type HFor Hard Materials

Colour BandApplication

Staggered Teeth Side& Face Cutters

StraightTeeth Side & FaceCutters

Fine Pitch KnuckleType Roughing Profile

Coarse Pitch KnuckleType Roughing Profile

ISO Standard 529 DIN Standard 371 FactorySpecifications

Refined Flute Quick Spiral Reamer to produceH7 Tolerance

Flatted Shankh6 Tolerance

Plain Shankh7 Tolerance

Threaded Shankh8 Tolerance

Carbide Plain Shankh6 Tolerance

Morse TaperShank

Drill PointAngles

CountersinkAngles

DrillsStub Series

DrillsJobber Series

DrillsLong Series

DrillsExtra Length Series

SSH SSH SSH SSHHSS SSH SSH SSH SSHHSS5oC 5oC 5oC 5oCCo5SSH SSH SSH SSHHSS8oC 8oC 8oC 8oCCo8

ESSH ESSH ESSH ESSHHSSE3V3V3V3VV3

DILOS* DILOS* DILOS* DILOS**SOLIDCARBIDECARBIDECARBIDECARBIDECARBIDE

SSH SSH SSH SSHHSSe8oC e8oC e8oC e8oCCo8e

EULB EULB EULB EULBBLUEHSINIF HSINIF HSINIF HSINIFFINISH

THGIRB THGIRB THGIRB THGIRBBRIGHTHSINIF HSINIF HSINIF HSINIFFINISH

NlAiT NlAiT NlAiT NlAiTTiAlN NiT NiT NiT NiTTiN

THGIRB THGIRB THGIRB THGIRBBRIGHTHSINIF HSINIF HSINIF HSINIFFINISH

HTIW HTIW HTIW HTIWWITHPIT NiT PIT NiT PIT NiT PIT NiTTiN TIP

DLOG DLOG DLOG DLOGGOLDEDIXO EDIXO EDIXO EDIXOOXIDE

EPYT EPYT EPYT EPYTTYPEN

EPYT EPYT EPYT EPYTTYPEH

ABC ABC ABC ABCCBA

EPYT EPYT EPYT EPYTTYPEW

OSI OSI OSI OSIISO925 925 925 925529

NID NID NID NIDDIN173 173 173 173371

FRFRFRFRRF SQSQSQSQQS

SKROW SKROW SKROW SKROWWORKS.DTS .DTS .DTS .DTSSTD.

7 H 7 H 7 H 7 HH 7

MT 3 - 5

Carbon SteelNOBRAC NOBRAC NOBRAC NOBRACCARBONLEETS LEETS LEETS LEETSSTEEL

TiALN suitedto Solid Carbide(Violet -grey Finish)

X.TREMEX.TREMEX.TREMEX.TREMEX.TREME

Parabolic FluteStrong Core

EPYT EPYT EPYT EPYTTYPESFSFSFSFFS

Coarse Pitch FlatCrest Rough Semi-finishing Profile

Fine Pitch Flat CrestRough Semi-finishing Profile

Mat

eria

lFi

nish

Type

End MillsRegular Series

End MillsLong Series

Mill

ing

Pro�

leSt

anda

rdSh

ank

Poin

t Ang

leLe

ngth

sFl

ute

Hel

ix A

ngle

Cent

reD

rills

Continued on next page...

Left handhelix

Right handhelix

Form AStandard

Form BProtected

Form RRadius

To Suit 1 in10 Taper

To Suit 1 in50 Taper

To Suit 1 in 48Taper

Thre

ads

Tole

ranc

e

Direction ofCut

Taper, Through& Blind Hole

Through &Blind Hole Blind Hole Tapping Through Hole Tapping

Left HandCutting

Right HandCutting Hand Taps

Metric Metric Fine British StandardWhitworth

British StandardWhitworthFine

Unified NationalCoarse

Unified NationalFine

British Standard PipeTaper “F” Series

British Standard Pipe(Fine) “G” Series

National PipeStraight

National PipeTaper

BritishAssociation

Thread Form - with47½°/55°/60° flankangle

WoodruffTolerance

Corner RoundingTolerance

PSB PSB PSB PSBBSP

BSB BSB BSB BSBBSBSPN SPN SPN SPNNPS

FMFMFMFMMFM MM MM WSB WSB WSB WSBBSW FSB FSB FSB FSBBSF

CNU CNU CNU CNUUNC FNU FNU FNU FNUUNF TPSB TPSB TPSB TPSBBSPT

TPN TPN TPN TPNNPT ABABABABBA British StandardBrass

Tolerance oncutting Diameter

App

licat

ion

GENERALMATERIAL DESCRIPTIONS

Code 0 Code 1 Code 2 Code 3 Code 4 Code 5 Code 7

Free Cutting SteelsCarbon SteelAlloy Steel

Stainless Steel

Heat Resisting Alloys

Nimonic Alloys

Titanium

Tool Steel

Cast Irons

Nickel

Manganese Steels

Aluminium AlloysMagnesium AlloysZinc Alloys

Copper

Synthetics / Plastics

xxx

x

x

x

x

x

x

x

xxx

x

x

x

x

x

xx

x

x

xxx

x

x

x

x

x

xx

x

x

xxx

x

x

x

x

x

x

x

x

xxx

x

x

x

x

x

x

xxx

x

x

xxx

x

x

x

x

x

x

x

x

xxx

x

x

x

x

x

x

xxx

x

x

Materials

ICONLEGEND & DESCRIPTION

THREADINGTOOLS

Suited MaterialsCARBON

STEEL

FREE CUTTING STEEL

CAST IRON COPPER

Suited MaterialsCARBON

STEEL

FREE CUTTING STEEL

CAST IRON COPPER

Green Band Spiral Flute Taps for tapping Carbon Steels

Green Band Spiral Flute Taps for tapping Carbon Steels

TiNTiNTiNTiNTiN

TiNTiNTiNTiNTiN

DINDINDINDINDIN371371371371371

CBACBACBACBACBA

HSSEHSSEHSSEHSSEHSSEV3V3V3V3V3

563

MMMMM

Properties

Code

CBACBACBACBACBA

HSSEHSSEHSSEHSSEHSSEV3V3V3V3V3

568

MMMMM

Properties

Code

DINDINDINDINDIN376376376376376

5630300563040056305005630600563070056308005631000

2.73.44.94.95.56.28

M3M4M5M6M7M8M10

0.50.70.81.01.01.251.5

566370808090100

5781010

12.515

3.54.56.06.07.08.010.0

I2 edoChctiPeziS d1I1 a No. ofFlutes3333333

2.12.12.73.44.95.57991112

14.514.5

2.52.83.54.56.07.09.011.012.014.016.018.018.0

67810

12.515

17.5202025252530

5663708090

100110110110125140140160

M3.5M4M5M6M8M10M12M14M16M18M20M22M24

0.60.70.81.01.251.51.752.02.02.52.52.53.0

5680350568040056805005680600568080056810005681200568140056816005681800568200056822005682400

I2 edoChctiPeziS d1I1 a No. ofFlutes3333333334444

ISO 26H

ISO 26H

STRAIGHTSHANK DRILLS

Drill Terminology

TANG

MORSE TAPERSHANK

RECESS

OVERALLLENGTH

BODYLENGTH

FLUTELENGTH

DIAMETER

HELIXANGLE

SHANKLENGTH

BODYCLEARANCEDIAMETER WEB

THICK-NESS

CIRCULARLAND

FLANK

CHISELEDGE

LIPLENGTH

POINTANGLE

LIPCLEARANCE

ANGLE

DETAILED VIEW OF LIP CLEARANCE

CHISELANGLE

HEEL

POINT

SLOW

STANDARD

QUICK

TYPES OF SPIRAL (OR HELIX) ANGLES

Note : Selecting the correct DrillRefer to the User Guide for detailed information.

STRAIGHTSHANK DRILLS

DRILL POINT STYLES

118° 130°

130° 118° 70°

Standard Point Split PointDin 1412 Form C

“UX Point”DIN 1412 TYPE B

Cast Iron Point“DX Point”

DIN 1412 TYPE D

Benefits of the Parabolic Flute Form

Heavy web construction increases rigidity under torsional load thus eliminating chatter at the cutting edgeswhich cause edge break down and early failure. The Parabolic drill web is 50-90% thicker than the standarddrill, depending on drill diameter.

Wider flute form, together with quicker spiral, promotes better chip removal while allowing easier coolant flowto the drill point.

FLUTE FORMS

Conventional Web Parabolic Flute FormThicker Web

Chipbreaker

DIN 1412 TYPE A

Drill Terminology

STANDARD MORSE TAPER SHANKTo I.S.O. 296 DIN228 BS1660

No.of

Taper

Fittingline

DiameterD

Diameterd

OverallLength

MaxL

D 1 a MaxL1

Maxe

H13b

Maxd1

Taper /mm

on DiaMax

R

123456

12.06517.78023.82531.26744.39963.348

9.014.019.025.036.052.0

65.580.099.0124.0156.0218.0

12.218.024.131.644.763.8

3.55.05.06.56.58.0

62.075.094.0117.5149.5210.0

13.516.020.024.029.040.0

5.26.37.911.915.919.0

8.713.518.524.535.751.0

5.06.07.08.010.013.0

0.049980.049950.050200.051940.052630.05214

d b

R

e

D

aL1

D1 d1

L

HOW TO ORDER SPECIALS

MODIFIED STANDARDS

There are many instances when a special tool (a tool not found in the Somta catalogue or price list) can bemanfactured from a standard product. We call this a ‘modified standard’. Somta has both the capabilityand capacity to offer this service which, under normal circumstances, means a short delivery time.

The following are typical drill modifications:

Intermediate DiametersStandard sizes can be ground down to special diameters and tolerances.

Reduced Overall LengthsStandard drills can be cut to special lengths.

Drill PointsThe standard drill point angle is 118° included. This can be modified to any angle required. Many special

Drill Terminology

points are available which include web thinning, notch points, split points, double angle points, spur andbrad points etc.

Tangs and FlatsTangs can be produced to DIN, ASA and ISO, also special whistle notch flats on shanks.

Step DrillsStandard drills can be modified into step drills.

Surface TreatmentsA full range of surface treatments including nitriding, stream oxide, chemical blackening, gold oxide andvarious titanium coatings are available.

Specify whether drill is to be Step or Subland Type.D = Diameter of large, fluted section.P = Diameter of small, fluted section.A = Shank Diameter.L = Overall Length.F = Flute Length.E = Length of Small Diameter. This is measured from the extreme point to the bottom corner of the stepangle.X°= Included angle of the step angle.S = Shank Length.

It is possible to drill two or more diameters in a hole on one operation with a correctly designeddrill and these are often used in mass production engineering.

Some of the hole types that can be drilled in a single operation.

MULTIPLE DIAMETER DRILLS

D

E S

L

F

AP

X°

Drill Terminology

When an intermediate diameter or a non standard length of drill is required, the following diameters andlengths need to specified.

Straight Shank Drills

D = Drill DiameterA = Shank DiameterL = Overall LengthF = Flute LengthS = Shank Length

Morse Taper Shank Drills

D = Drill DiameterL = Overall LengthF = Flute LengthM = Morse Taper Size

F

S

L

AD

F

L

D

M

Drill Terminology

somta-p3somta-p4somta-p27somta-p53somta-p54somta-p55somta-p56somta-p57