Search the Online Catalogue
Please choose from one of the following searches.


AC70 -- Clarkson Annular Cutter - Cut Pin AC71 -- Clarkson Annular Cutter - 1" LOC AC72 -- Clarkson Annular Cutter - 2" LOC AC73 -- Clarkson Annular Cutter - 3" LOC CM01 -- Clarkson Autolock Cutter Sets CM03 -- Clarkson Autolock End Mills CM04 -- Clarkson Autolock Long Series End Mills CM05 -- Clarkson Autolock Slot Drills (2 Flute) CM06 -- Clarkson Autolock Long Series Slot Drills (2 Flute) CM07 -- Clarkson Autolock Ball Nose Slot Drills (2 Flute) CM08 -- Clarkson Autolock Long Series Ball Nose Slot Drills (2 Flute) CM09 -- Clarkson Autolock T-Slot Cutters CM10 -- Clarkson Autolock 60° Dovetail Cutters CM11 -- Clarkson Autolock 55° Dovetail Cutters CM12 -- Clarkson Autolock 45° Dovetail Cutters CM13 -- Clarkson Autolock Woodruff Cutters CM15 -- Clarkson Autolock Corner Round Cutter CM16 -- Clarkson Autolock Cobalt Corner Round Cutter CM21 -- Clarkson Autolock Chucks CM22 -- Clarkson Autolock Chuck Accessories CM27 -- Clarkson Autolock Fractional Size Counterbores CM29 -- Clarkson Autolock Metric Counterbores CM33 -- Clarkson Autolock Cobalt End Mills CM34 -- Clarkson Autolock Long Series Cobalt End Mills CM36 -- Clarkson Autolock Cobalt Rip-R Cutters CM37 -- Clarkson Autolock Long Series Cobalt Rip-R Cutters CM40 -- Clarkson Autolock Cobalt Slot Drills (3 Flute) CM41 -- Clarkson Autolock Long Series Cobalt Slot Drills (3 Flute) CM42 -- Clarkson Autolock Cobalt Slot Drills (2 Flute) CM43 -- Clarkson Autolock Cobalt Long Series Slot Drills (2 Flute) CM50 -- Clarkson Autolock 6° Diesinking Cutters CM51 -- Clarkson Autolock 10° Diesinking Cutters CM52 -- Clarkson Autolock Parallel Diesinking Cutters CM60 -- Clarkson Fractional FC3 Cutters CM61 -- Clarkson Metric FC3 Cutters CM62 -- Clarkson FC3 Holders And Accessories CM81 -- Clarkson Dedlock Chucks And Accessories CM82 -- Clarkson Dedlock Cutters CM83 -- Clarkson Slitting Saws CM84 -- Clarkson Fine Pitch Slitting Saws CM85 -- Clarkson Side & Face Cutters CT10 -- Warwick NPT & NPTF Taper Pipe Taps CT11 -- Warwick NPS & NPSF Straight Pipe Taps CT12 -- Warwick BSPT Taper Pipe Taps CT13 -- Warwick BSPF Straight Pipe Taps CT51 -- Red Ring Spiral Point Metric (AST) Application Specific Taps CT52 -- Red Ring Spiral Point Fractional (AST) Application Specific Taps CT53 -- Red Ring Spiral Flute Metric (AST) Application Specific Taps CT54 -- Red Ring Spiral Flute Fractional (AST) Application Specific Taps CT55 -- Blue Ring Spiral Point Metric (AST) Application Specific Taps CT56 -- Blue Ring Spiral Point Fractional (AST) Application Specific Taps CT57 -- Blue Ring Spiral Flute Metric (AST) Application Specific Taps CT58 -- Blue Ring Spiral Flute Fractional (AST) Application Specific Taps CT59 -- White Ring Spiral Flute Metric (AST) Application Specific Taps CT60 -- White Ring Spiral Flute Fractional (AST) Application Specific Taps CT61 -- Yellow Ring Spiral Flute Metric (AST) Application Specific Taps CT62 -- Yellow Ring Spiral Flute Fractional (AST) Application Specific Taps CT68 -- Wizard Spiral Point Extension Machine Taps CT69 -- Mercury Fluteless Metric Machine Taps CT70 -- Mercury Fluteless Fractional Machine Taps CT71 -- Blue Wizard Spiral Point Metric Machine Taps CT72 -- Blue Wizard Spiral Point Fractional Machine Taps CT725 -- Blue Wizard Spiral Point Fractional Machine Taps +.005" OS CT73 -- White Wizard Spiral Point Fractional Machine Taps CT74 -- White Wizard Spiral Point Metric Machine Taps CT75 -- Merlin Spiral Flute Fractional Machine Taps CT76 -- Merlin Spiral Flute Metric Machine Taps CT77 -- Bright Wizard Spiral Point Machine Taps CT78 -- Gold Wizard Spiral Point Metric Machine Taps CT79 -- Gold Wizard Spiral Point Fractional Machine Taps CT80 -- Merlin Spiral Flute BSW, BSF & BA Machine Taps CT81 -- Wizard Spiral Point BSW & BSF Machine Taps CW86 -- Weldon Deburring Tools CW87 -- Weldon Countersinks CW90 -- Weldon Tu-Lip Straight Shank Counterbores CW91 -- Weldon Tu-Lip Taper Shank Counterbores DR02 -- HSS Two-Tone Jobber Length Drills DR03 -- HSS Left Hand Jobber Length Drills DR04 -- HSS Metric Jobber Length Drills DR05 -- HSS Metric 10MM+ Jobber Length Drills DR06 -- Tap & Drill Sets DR07 -- HSS 1/4" Shank Prentice Drills DR08 -- Drill Set Containers DR09 -- Cobalt Fractional Jobber Length Drills DR10 -- HSS TiN Coated Jobber Length Drills DR11 -- Cobalt OM200 Parabolic Jobber Length Drills DR11T -- Cobalt OM200T Parabolic Jobber Length Drills TiN DR12 -- HSS & Cobalt Split Point Stub Length Drills DR13 -- Cobalt Cor-L(K) TiAlN Metric Jobber Length Drills DR15 -- HSS Bright Finish Jobber Length Drills DR16 -- Cobalt Cor-L ZIRCON Fractional Jobber Length Drills DR17 -- Cobalt Cor-L ZIRCON Metric Jobber Length Drills DR18 -- Cobalt Cor-L ZIRCON Metric 10MM+ Jobber Length Drills DR19 -- Cobalt Cor-L(K) TiAlN Fractional Jobber Length Drills DR20 -- HSS Straight Shank LS Taper Length Drills DR21 -- Cobalt Cor-L(K) TiAlN Fractional Stub Length Drills DR22 -- Cobalt Cor-L ZIRCON Fractional Stub Length Drills DR23 -- Cobalt Cor-L ZIRCON Metric Stub Length Drills DR24 -- Cobalt Cor-L ZIRCON Metric 10MM+ Stub Length Drills DR25 -- Cobalt Cor-L(P) TiCN Fractional Stub Length Drills DR26 -- Cobalt Cor-L(P) TiCN Metric Stub Length Drills DR27 -- Cobalt Cor-L(P) TiCN Metric 10MM+ Stub Length Drills DR28 -- Cobalt Cor-L(K) TiAlN Metric Stub Length Drills DR29 -- Cobalt Cor-L(K) TiAlN Metric 10MM+ Stub Length Drills DR30 -- HSS ANSI Morse Taper Shank Drills DR34 -- Cobalt Armour Piercing Morse Taper Shank Drills DR35 -- HSS Metric Morse Taper Shank Drills DR36 -- Cobalt ANSI Morse Taper Shank Drills DR40 -- HSS Straight Shank Extra Long Drills DR41 -- HSS OM100 Parabolic SS Extra Long Drills DR42 -- HSS Morse Taper Shank 250MM (10") Extra Long Drills DR43 -- HSS Morse Taper Shank 315MM (12") Extra Long Drills DR44 -- HSS Morse Taper Shank 400MM (16") Extra Long Drills DR45 -- HSS Morse Taper Shank 500MM (20") Extra Long Drills DR46 -- HSS Metric LS Taper Length Drills DR47 -- HSS Metric 10MM+ LS Taper Length Drills DR48 -- HSS Metric 20MM+ LS Taper Length Drills DR50 -- HSS 1/2" Shank Prentice Drills DR51 -- Cobalt 1/2" Shank Prentice Drills DR52 -- Carbide Tipped Masonry Drills DR58 -- Oil Toughened Drill Sleeve DR59 -- Hardened & Ground Drill Sleeve DR62 -- HSS Center Drills DR63 -- Drill Drifts DR64 -- HSS 6" Long Aircraft Extension Drills DR65 -- HSS 12" Long Aircraft Extension Drills DR66 -- HSS Stub Length Threaded Shank Adapter Drills DR67 -- HSS Short Length Threaded Shank Adapter Drills DR68 -- HSS Long Length Threaded Shank Adapter Drills DR70 -- HSS Progressive Drills DR72 -- HSS Slow Spiral Jobber Length Drills DR73 -- HSS Fast Spiral Jobber Length Drills DR74 -- HSS Heavy Duty Split Point Cotter Pin Drills DR75 -- HSS Jobber Length Drill Blanks DR76 -- HSS Pan-L Drills DR77 -- HSS Double End Pan-L Drills DR79 -- Cobalt Metric Stub Length Drills DR82 -- HSS Metric Stub Length Drills DR83 -- HSS Metric 10MM+ Stub Length Drills DR84 -- Cobalt NC Spotting Drills 90 & 120° Point DR90 -- Cobalt Metric Jobbers Length Drills DR91 -- Cobalt Metric 10MM+ Jobbers Length Drills EM01 -- Cobalt 2 Flute Keyway Weldon Shank End Mills EM02 -- Cobalt 2 Flute Weldon Shank End Mills EM03 -- Cobalt 2 Flute Long Series Weldon Shank End Mills EM04 -- Cobalt 4 Flute Center Cut Weldon Shank End Mills EM05 -- Cobalt 4 Flute Long Series Center Cut Weldon Shank End Mills EM10 -- Cobalt Rip-R Weldon Shank End Mills EM11 -- Cobalt Long Series Rip-R Weldon Shank End Mills EM15 -- HSS 2 Flute For Aluminum Weldon Shank End Mills EM16 -- HSS 2 Flute Long Series For Aluminum Weldon Shank End Mills EM17 -- HSS 2 Flute Extra Long Series For Aluminum Weldon Shank End Mills EM18 -- HSS 2 Flute Ball For Aluminum Weldon Shank End Mills EM19 -- HSS 2 Flute Ball Long Series For Aluminum Weldon Shank End Mills EM20 -- HSS 2 Flute Ball Extra Long Series For Aluminum Weldon Shank End Mills EM50 -- HSS 2 Flute Weldon Shank End Mills EM51 -- HSS 2 Flute Metric Weldon Shank End Mills EM52 -- HSS 2 Flute Long Series Weldon Shank End Mills EM54 -- HSS 2 Flute Ball End Weldon Shank End Mills EM56 -- HSS 3 Flute Weldon Shank End Mills EM60 -- HSS 4 Flute Weldon Shank End Mills EM61 -- HSS 4 Flute Metric Weldon Shank End Mills EM62 -- HSS 4 Flute Long Series Weldon Shank End Mills EM64 -- HSS 4 Flute Extra Long Series Weldon Shank End Mills EM70 -- HSS Center Cut Weldon Shank End Mills EM72 -- HSS Long Series Center Cut Weldon Shank End Mills EM74 -- HSS Extra Long Series Center Cut Weldon Shank End Mills EM82 -- HSS 2 Flute Double End Weldon Shank End Mills EM83 -- HSS 2 Flute Double End Ball Weldon Shank End Mills EM84 -- HSS 4 Flute Double End Weldon Shank End Mills HA70 -- Carbon Bandsaw Blade HA72 -- Carbon Hook Tooth Bandsaw Blade HA74 -- Bi-Metal M42 Bandsaw Blade HA75 -- Bi-Metal M42 Bandsaw Blade HA76 -- Bi-Metal M42 Bandsaw Blade HA77 -- Bi-Metal M42 Bandsaw Blade HA78 -- Bi-Metal M42 Bandsaw Blade HA80 -- Carbide Tipped Bandsaw Blade HA88 -- Bi-Metal M42 MasterCut Bandsaw Blade MA02 -- Carbide 2 Flute 30° WhisperMill HSC Cutter MA03 -- Carbide 3 Flute 52° WhisperMill HSC Cutter MA04 -- Carbide 4 Flute 30° WhisperMill HSC Cutter MA06 -- Carbide 2 Flute 30° Corner Radius WhisperMill HSC Cutter MA08 -- Carbide 4 Flute 30° Corner Radius WhisperMill HSC Cutter MA12 -- Carbide 2 Flute 30° Ball End Short Reach WhisperMill HSC Cutter MA14 -- Carbide 2 Flute 30° Ball End Medium Reach WhisperMill HSC Cutter MA16 -- Carbide 2 Flute 30° Ball End Long Reach WhisperMill HSC Cutter MA18 -- Carbide 4 Flute 30° Ball End Medium Reach WhisperMill HSC Cutter MA20 -- Carbide 4 Flute 30° Ball End Long Reach WhisperMill HSC Cutter MA22 -- Carbide 2 Flute 45° For Aluminum WhisperMill HSC Cutter MA23 -- Carbide 2 Flute 45° For Aluminum Coated WhisperMill HSC Cutter MA24 -- Carbide 3 Flute 45° For Aluminum WhisperMill HSC Cutter MA25 -- Carbide 3 Flute 45° For Aluminum Coated WhisperMill HSC Cutter MA26 -- Carbide 5 Flute 45° For Titanium WhisperMill HSC Cutter MA27 -- Carbide 3 Flute 45° For Titanium Coated WhisperMill HSC Cutter MA50 -- Carbide 6 Flute 52° Hard Cut WhisperMill HSC Cutter MC03 -- Osborn Threaded Shank End Mills MC04 -- Osborn Threaded Shank Long Series End Mills MC05 -- Osborn Threaded Shank Slot Drills (2 Flute) MC06 -- Osborn Threaded Shank Long Series Slot Drills (2 Flute) MC07 -- Osborn Threaded Shank Ball Nose Slot Drills (2 Flute) MC08 -- Osborn Threaded Shank Long Series Ball Nose Slot Drills (2 Flute) MC09 -- Osborn Threaded Shank T-Slot Cutters MC10 -- Osborn Threaded Shank 60° Dovetail Cutters MC11 -- Osborn Threaded Shank 55° Dovetail Cutters MC12 -- Osborn Threaded Shank 45° Dovetail Cutters MC13 -- Osborn Threaded Shank Woodruff Cutters MC16 -- Osborn Threaded Shank Cobalt Long Series 3 Flute SuperMill MC17 -- Osborn Threaded Shank Cobalt 3 Flute SuperMill MC18 -- Osborn Threaded Shank SuperCuts MC19 -- Osborn Threaded Shank Long Series SuperCuts MC27 -- Osborn Threaded Shank Counterbores MC33 -- Osborn Threaded Shank Cobalt End Mills MC34 -- Osborn Threaded Shank Long Series Cobalt End Mills MC35 -- Osborn Threaded Shank Cobalt Slot Drills (2 Flute) MC36 -- Osborn Threaded Shank Cobalt Knuckle Ripper Cutters MC37 -- Osborn Threaded Shank Long Series Cobalt Knuckle Ripper Cutters MC38 -- Osborn Threaded Shank Long Series Cobalt Slot Drills (2 Flute) MC39 -- Osborn Threaded Shank Cobalt Fine Pitch Ripper Cutters MC53 -- Osborn Weldon Shank Metric Cobalt End Mills MC54 -- Osborn Weldon Shank Metric Cobalt Long Series End Mills MC55 -- Osborn Weldon Shank Metric Cobalt Slot Drills MC56 -- Osborn Weldon Shank Metric Cobalt Ripper Cutters MC57 -- Osborn Weldon Shank Metric Cobalt Long Series Ripper Cutters MC58 -- Osborn Weldon Shank Metric Cobalt Long Series Slot Drills MC59 -- Osborn Weldon Shank Metric Cobalt Ball End Slot Drills MC60 -- Osborn Weldon Shank Metric Cobalt 3 Flute SuperMills MC61 -- Osborn Weldon Shank Metric Cobalt Long Series 3 Flute SuperMills MC62 -- Osborn Threaded Shank Cobalt 3 Flute High Helix AliMills MC63 -- Osborn Weldon Shank Cobalt 3 Flute High Helix AliMills MD02 -- Carbide Oil Hole WhisperDrills MD04 -- Carbide Oil Hole WhisperDrills - TiAlN Coated MS01 -- Standard Marking Stamps MS03 -- Reverse Marking Stamps MS05 -- Heavy Duty Marking Stamps MS10 -- Arch (Wad) Punches RE01 -- HSS Taper Shank Straight Flute Bridge Reamers RE02 -- HSS Taper Shank Spiral Flute Bridge Reamers RE17 -- HSS Straight Shank Straight Flute Chucking Reamers RE18 -- HSS Taper Shank Straight Flute Chucking Reamers RE22 -- Cobalt Taper Shank Spiral Flute Chucking Reamers RE24 -- Cobalt Straight Shank Spiral Flute Chucking Reamers RE30 -- HSS Straight Shank Taper Pin Reamers RE41 -- HSS Straight Shank Spiral Flute Hand Reamers RE45 -- HSS Taper Shank Spiral Flute Machine Reamers RE50 -- HSS Straight Shank Adjustable Reamers RE53 -- Replacement Blades For RE50 Adjustable Reamers RE54 -- Replacement Pilots For RE50 Adjustable Reamers RE55 -- Replacement Nuts For RE50 Adjustable Reamers SC01 -- Carbide General Purpose Drills SC03 -- Carbide Metric Drills SC05 -- Carbide Straight Flute Drills SC07 -- Carbide Center Drills SC08 -- Carbide Single Flute Countersinks SC09 -- Carbide 3 Flute Countersinks SC10 -- Carbide 6 Flute Countersinks SC12 -- Carbide Slow Spiral Drills SC14 -- Carbide Parabolic Flute Drills SC16 -- Carbide 3 Flute Drills SC20 -- Carbide 2 Flute End Mills SC21 -- Carbide 3 Flute End Mills SC22 -- Carbide 4 Flute End Mills SC23 -- Carbide 2 Flute Ball End End Mills SC24 -- Carbide 3 Flute Ball End End Mills SC25 -- Carbide 4 Flute Ball End End Mills SC26 -- Carbide 2 Flute Long Series End Mills SC27 -- Carbide 4 Flute Long Series End Mills SC28 -- Carbide 2 Flute Ball End Long Series End Mills SC29 -- Carbide 4 Flute Ball End Long Series End Mills SC30 -- Carbide 2 Flute Extra Long Series End Mills SC31 -- Carbide 4 Flute Extra Long Series End Mills SC32 -- Carbide 2 Flute Ball End Extra Long Series End Mills SC33 -- Carbide 4 Flute Ball End Extra Long Series End Mills SC34 -- Carbide 2 Flute Double End End Mills SC35 -- Carbide 4 Flute Double End End Mills SC36 -- Carbide 2 Flute Double End Ball End End Mills SC37 -- Carbide 4 Flute Double End Ball End End Mills SC38 -- Carbide 2 Flute Double End Weldon Flat End Mills SC39 -- Carbide 4 Flute Double End Weldon Flat End Mills SC40 -- Carbide 2 Flute Double End Ball End Weldon Flat End Mills SC41 -- Carbide 4 Flute Double End Ball End Weldon Flat End Mills SC42 -- Carbide Weldon Flat End Mills SC43 -- Carbide 2 Flute TiN Coated End Mills SC44 -- Carbide 4 Flute TiN Coated End Mills SC51 -- Carbide 2 Straight Flute End Mills SC52 -- Carbide 4 Straight Flute End Mills SC53 -- Carbide 2 Straight Flute Ball End End Mills SC54 -- Carbide 4 Straight Flute Ball End End Mills SC55 -- Carbide 2 Flute Miniature End Mills SC56 -- Carbide 4 Flute Miniature End Mills SC57 -- Carbide Extended Length Ball End End Mills SC60 -- Carbide FC3 Cutters SC80 -- Carbide Chucking Reamers SC90 -- Carbide Double Cut Burs SC91 -- Carbide Single Cut Burs SC95 -- Carbide Non-Ferrous Burs SP01 -- Carbide Tipped Style C Brazed Single Point Tool SP02 -- Carbide Tipped Style D Brazed Single Point Tool SP03 -- Carbide Tipped Style E Brazed Single Point Tool SP04 -- Carbide Tipped Style AR Brazed Single Point Tool SP05 -- Carbide Tipped Style AL Brazed Single Point Tool SP06 -- Carbide Tipped Style BR Brazed Single Point Tool SP07 -- Carbide Tipped Style BL Brazed Single Point Tool SP08 -- Carbide Tipped Style ER Brazed Single Point Tool SP09 -- Carbide Tipped Style EL Brazed Single Point Tool SP10 -- Carbide Tipped Style FR Brazed Single Point Tool SP11 -- Carbide Tipped Style FL Brazed Single Point Tool SP12 -- Carbide Tipped Style GR Brazed Single Point Tool SP13 -- Carbide Tipped Style GL Brazed Single Point Tool SP14 -- Carbide Tipped Style CT(COR) Brazed Single Point Tool SP15 -- Carbide Tipped Style CTL(COL) Brazed Single Point Tool SP16 -- Carbide Tipped Style TSA Brazed Single Point Tool SP18 -- Carbide Tipped Style TSC Brazed Single Point Tool SP20 -- Carbide Tipped Style TSE Brazed Single Point Tool SP22 -- Carbide Tipped Style TRC Brazed Single Point Tool SP23 -- Carbide Tipped Style TRE Brazed Single Point Tool SP24 -- Carbide Tipped Style TRG Brazed Single Point Tool SS21 -- W1 Drill Rod SS33 -- O1 Drill Rod TA01 -- Fractional NC & NF HSGT Hand Taps TA02 -- Fractional NC & NF HSGT Left Hand Taps TA03 -- Number Size NC & NF HSGT Hand Taps TA06 -- Extension NC & NF HSGT Hand Taps TA07 -- Pulley NC & NF HSGT Hand Taps TA18 -- Metric & Fractional HSGT Hand Tap & Die Sets TA25 -- HSS Fractional Round Dies TA26 -- HSS NPT Pipe Round Dies TA27 -- HSS BSPT Pipe Round Dies TA28 -- HSS BSPF Pipe Round Dies TA35 -- Metric Coarse HSGT Hand Taps TA36 -- Metric Fine HSGT Hand Taps TA37 -- Metric BS HSGT Hand Taps TA38 -- Metric BA HSGT Hand Taps TA40 -- HSS Metric Round Dies TA41 -- HSS Metric Fine Round Dies TA42 -- HSS BSW Round Dies TA43 -- HSS BSF Round Dies TA44 -- HSS BA Round Dies TA45 -- Adjustable Tap Wrenches TA46 -- Round Die Stocks TA80 -- Carbon Hex Rethreading Dies TA81 -- HSS Hex Rethreading Dies TA97 -- Repair Screw Extractors TG01 -- Taper Lock Handle For Thread Plug Gages TG02 -- Taper Lock 2B GO Thread Plug Gages TG03 -- Taper Lock 2B NO GO Thread Plug Gages TG04 -- Taper Lock 3B GO Thread Plug Gages TG05 -- Taper Lock 3B NO GO Thread Plug Gages TG08 -- Taper Lock NPT Pipe Thread Plug Gages TG10 -- Taper Lock NPT Pipe Ring Gages TO01 -- HSS Square Tool Bits TO02 -- HSS Round Tool Bits TO06 -- Cobalt Square Tool Bits TO07 -- Cobalt Round Tool Bits TO56 -- HSS Part Off Blades ZD12 -- HSS Hyper Stub Length Drills ZD16 -- HSS Hyper Jobber Length Drills ZD30 -- HSS Hyper ANSI Morse Taper Shank Drills ZD50 -- HSS Hyper 1/2" Shank Prentice Drills ZD52 -- Carbide Tipped Hyper Masonry Drills ZD62 -- HSS Hyper Combined Drill & Countersinks ZD63 -- HSS Single Flute 60° Countersinks ZD64 -- HSS Single Flute 82° Countersinks ZD65 -- HSS Single Flute 90° Countersinks ZD66 -- HSS 3 Flute 60° Countersinks ZD67 -- HSS 3 Flute 82° Countersinks ZD68 -- HSS 3 Flute 90° Countersinks ZT01 -- HSS Straight Flute Plug Osborn-M Maintenance Tap ZT02 -- HSS Straight Flute Sets Osborn-M Maintenance Tap ZT04 -- HSS Spiral Point Osborn-M Maintenance Tap ZT08 -- HSS Straight Flute Taper Osborn-M Maintenance Tap ZT09 -- HSS Straight Flute Bottom Osborn-M Maintenance Tap



or