TOOLS NEWS B204G. Long shank straight drill SD-LS. Long shank type prevents troubles for overhang application.

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Derek Lawson
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1 Long shank straight drill TOOLS NEWS B24G Long shank type prevents troubles for overhang application.

2 Long shank straight drill Do you have any troubles drilling a deep hole? Have you had any troubles using a long straight drill when long overall length is demanded for preventing collision with workpiece? Breakage Conventional drill for deep hole drilling Hole expansion Displacement of hole position High rigidity 5. Various problems occurs Shorter fl ute length in comparison with conventional long straight drill is used to maintain high rigidity, thereby preventing various troubles. Deflection analysis Cause less breakage Longer tool life Stable tool life Prevent hole expansion Small displacement of hole position Displacement (VS.) Bending amount about 1/ Heavy load.5 <Analyzed model> Conventional Image of applying (Overhang length 11mm) Drill diameter 4.mm, overall length 2mm, fl ute length 42mm Conventional Drill diameter 4.mm, overall length 2mm, fl ute length 1mm 1

Stable machining due to optimum design Better engaging stability Better engaging stability since the thinning part whose point angle is obtuse becomes

Better chip disposability Better chip disposability because the core dia. can be smaller and the chip pocket becomes bigger. Conventional Core dia.

3 Stable machining due to optimum design Better engaging stability Better engaging stability since the thinning part whose point angle is obtuse becomes smaller. Lower cutting force Lower cutting force since length of cutting edges formed by thinning becomes shorter. Better chip disposability Better chip disposability because the core dia. can be smaller and the chip pocket becomes bigger. Conventional Core dia. of Core dia. of conventional All-rounder flute geometry which enables to machine wide range of work materials and it is available for both machining center and manually operated machines. 2

4 Long shank straight drill NEW LONG SHANK STRAIGHT DRILL Carbon Steel Alloy Steel Hardened Steel Stainless Steel Cast Iron Light Alloy e u u u Heat Resistant Alloy HSS 118 Thinning D1>2 1 <D1 <3 3<D1 <6 6<D1< ød1 L3 L1 ait is recommended to use when long overall length is demanded for preventing collision with workpiece with high rigidity. afor both machining center and manually operated machines. Unit : mm Order Number Drill Dia. Flute Overall D1 L3 L1 Stock Order Number Drill Dia. Flute Overall D1 L3 L1 Stock SDLSD1A a D11A a D12A a D13A a D14A a D15A a D16A a D17A a D18A a D19A a D2A a D21A a D22A a D23A a D24A a D25A a D26A a D27A a D28A a D29A a D3A a D31A a D32A a D33A a D34A a D35A a D36A a D37A a D38A a D39A a D4A a D41A a D42A a D43A a D44A a D45A a D46A a D47A a D48A a D49A a SDLSD5A a D51A a D52A a D53A a D54A a D55A a D56A a D57A a D58A a D59A a D6A a D61A a D62A a D63A a D64A a D65A a D66A a D67A a D68A a D69A a D7A a D71A a D72A a D73A a D74A a D75A a D76A a D77A a D78A a D79A a D8A a D81A a D82A a D83A a D84A a D85A a D86A a D87A a D88A a D89A a 3 a : Inventory maintained.

5 Unit : mm Order Number Drill Dia. Flute Overall D1 L3 L1 Stock SDLSD9A a D91A a D92A a D93A a D94A a D95A a D96A a D97A a D98A a D99A a D1A a 4

6 Long shank straight drill RECOMMENDED CUTTING CONDITIONS Work material Mild Steel ( 18HB), Carbon Steel, Alloy Steel(18 25HB) SS4, S1C, S45C, SCM44 etc. Alloy Steel, Tool Steel ( 3HRC) SKD61, SKT4 etc. Alloy Steel, Tool Steel (<4HRC) SKD61, SKT4 etc. Gray Cast Iron ( 35MPa) FC3 etc. Drill Dia. (mm) Work material Ferritic and Martensitic Stainless Steel ( 2HB) SUS41, SUS43 etc. Austenitic Stainless Steel ( 2HB) SUS34, SUS316 etc. Copper, Copper Alloys Aluminium Alloy (Si<5%) A661, A775 etc. Drill Dia. (mm) (Note) For the spindle revolution of diameters not shown in the table, please adjust to the conditions of larger and closest diameter, or calculate from the cutting speed of the closest diameter. For the feed rate per revolution, please set up within the recommended feed rate of the closest diameter appropriately. 1) Please reduce the revolution and feed rate depending on the drilling situation when the installation of workpiece or machine lacks rigidity. 2) When drilling holes greater than 3 x drill diameter hole depths, please use a peck feed. 3) The above-mentioned cutting condition is standard when adjusting a tool overhang to twice longer than fl ute length. Please modulate the cutting conditions when overhang length is long. 4) Use of water-soluble cutting fl uid is recommended. Please reduce the revolution when using water-insoluble cutting fl uid. 5) Use sufficient cutting fl uid. Please reduce the revolution when not supplied suffi cient cutting fl uid. 6) When using a guide bush, please confi rm if it is flute length>a. In case of short flute length, please conduct machining without the bush. And, when not being able to dismount the bush, please use LSD or G-WSL. Guide bush Drill Dia. x of 1.5 times from 1. times. Workpiece A of the workpiece to the lower end of the guide bush top. Additional length for secure penetration 5

7 Technical Data The advantage of long shank drill UP Tool life and Machining efficiency Tool life vs. feed rate Tool life (piece) Conventional (Flute length 5mm) Feed rate (mm/rev) (Flute length 32mm) POINT Easy to set up cutting condition. Possible to be used at higher feed. <Cutting Conditions> Work material : S5C (DIN-C5) Drill Dia. : ø3mm : 25m/min Feed rate : 398mm/min Hole depth : 9mm (Blind hole) Overhang length : 11mm UP UP Hole diameter accuracy and Stable cutting area Hole expansion amount vs. feed rate Hole diameter (mm) Conventional (Flute length 1mm) 1 hole machining each Feed rate (mm/min) Hole positioning accuracy (Flute length 42mm) Tool dia. POINT Small deviation and prevented expansion of hole diameter without any effect of feed rate. <Cutting Conditions> Work material : S5C Drill Dia. : ø4mm : 25m/min Hole depth : 7mm (Blind hole) Overhang length : 11mm Deviation of hole positioning in surface machining Deviation amount of hole positioning in 1 slope machining. (Flute length 42mm) Conventional (Flute length 1mm) (Flute length 42mm) Conventional (Flute length 1mm) Feed rate.4 Feed rate 22mm/min 8mm/min Y Y Deviation of hole positioning (mm) Deviation of hole positioning (mm) POINT Better engaging stability. High rigidity. <Cutting Conditions> Work material : S5C Drill Dia. : ø4mm : 25m/min Deviation amount Hole depth : 13mm (Through hole) Overhang length : 11mm Z Y 1 slope 6

8 Long shank straight drill LS For Your Safety adon't handle inserts and chips without gloves. aplease machine within the recommended application range and exchange expired tools with new ones in advance of breakage. aplease use safety covers and wear safety glasses. awhen using compounded cutting oils, please take fire precautions. awhen using rotating tools, please make a trial run to check run-out, vibration and abnormal sounds etc. agrinding or heating of cutting tools produces dust and mist. Inhaling large amount of dust or contacting with eyes and skins may harm your body. MITSUBISHI MATERIALS CORPORATION Overseas Sales Dept, Asian Region KFC bldg., 8F, Yokoami, Sumida-ku, Tokyo 13-15, Japan TEL FAX Overseas Sales Dept, European & American Region KFC bldg., 8F, Yokoami, Sumida-ku, Tokyo 13-15, Japan TEL FAX URL : (Tools specifications subject to change without notice.) EXP-13-E E( - )

for the machining of steel materials aggressive cutting speeds and improved tool life reduced cycle times and improved hole quality RT 100 S

for the machining of steel materials aggressive cutting speeds and improved tool life reduced cycle times and improved hole quality RT 100 S STEEL MACHINING P Strong in steel RT100 RT 100 S was developed