DART Spiral Flute Step Drills 4-20mm
9 Steps (4, 6, 8,10, 12, 14, 16, 18, 20mm)
Precision engineered steel bits with spiral flute tapered cutting edges allowing for deburring or chamfering of the hole drilled.
HSS ground.
Split point for spot drilling.
Suitable for use on sheet metal, stainless steel, cast iron, aluminium, non-ferrous metals and plastic.
302=3-2;303=3-3;401=4-1;402=4-2;403=4-3;404=4-4;405=4-5;406=4-6;408=4-8;410=4-10;412=4-12;502=5-2;503=5-3;504=5-4;505=5-5;506=5-6;508=5-8;602=6-2;603=6-3;604=6-4;605=6-5;606=6-6;608=6-8;610=6-10;612=6-12;614=6-14;616=6-16;618=6-18;620=6-20;622=6-22;804=8-4;806=8-6;808=8-8;812=8-12;BL=Black;BM=BMA (Bronze Metal Antique);BN=Bronze;BO=Black Oxide;BR=Bright;BS=Bright Steel;BU=Blue;BZ=Black Zinc;DB=Denim Blue;DS=Desert Sand;GA=Galvanized;GF=Grey Friars;GR=Green;IS=Iron Sand;KA=Karaka;LC=Lichen;LG=Lignite;MG=Mist Green;NA=Natural;NI=Nickle;NP=Nickle Plated;PG=Perm Green;RU=Ruspert;SA=Scoria;SB=Satin Black;SC=Self Colour;SM=Smooth Cream;SP=Sil Pearl;TI=Titania;TN=Tin;WH=White;XX=N/A;ZC=Zinc Yellow;ZI=Zinc;ZP=Zinc Plated;ZS=Zinc Silver;ZY=Zinc Yellow;C3=Mechanical Galv (C3);C4=Mechanical Galv (C4);SZ=Silicon Bronze;GH=Ghost;SN=Sandstone Grey;RG=Rivergum;EB=Ebony;WG=Windsor Grey;CG=Charcoal Grey;GG=Gull Grey;HE=Hex;PH=Phillips;PO=Pozi;PS=Pan/Slot;PT=Post (Security);S0=Square #0 (Use on 4G);S1=Square #1 (Use on 6G);S2=Square #2 (Use on 8G, 10G);S3=Square #3 (Use on 12G, 14G);SL=Slot;SN=Snake Eye;XX=N/A;TO=Torx;TR=Triwing;TP=Post Torx (Security);BG=Bugle;BT=Button;CA=Cap;CH=Cheese;CL=Csk Phillips;CS=Countersunk;CU=Cup;CX=Csk Hex;EY=Eye;FH=Flush Head;FL=Flat;HE=Hex;MU=Mushroom;PA=Pan;RN=Round;RS=Raised Countersunk;SH=Shoulder Cap;WA=Wafer;XX=N/A;LF=Large Flanged;TR=Truss;A2=T304 Stainless Steel;A4=T316 Stainless Steel;A6=T410 Stainless Steel;A7=T420 Stainless Steel;AL=Aluminium;B7=Grade B7;BR=Brass;C1=Class 10.9;C2=Class 2;C3=Class 12.9;C4=Class 4.8;C8=Class 8.8;FB=Fibre;G2=Grade 2;G4=Grade 4;G5=Grade 5;G8=Grade 8;G9=Grade 9;GC=Grade C;GG=Grade G;H8=HSFG Class 8.8;N2=Class 2;N3=Class 3;N3=Class 3;N4=Class 4;N5=Class 5;N8=Class 8;NY=Nylon;P1=Class 10;P2=Class 12;ST=Steel;XX=N/A;Z4=4140 Alloy Steel;NE=Neoprene;AA=All Aluminium;AS=Aluminium/Steel;CS=Copper Sealed;MS=Monel/Steel;SS=All Steel;SU=All Stainless Steel;TA=Aluminium Sealed;M=Metric;P=Imperial;X=N/A;EA=Each;TP=Twin Pack;XX=N/A;LP=Lead Point;NP=Needle Point;T1=Type 17;T2=Type 25;TA=Type A;TB=Type B;TC=Type AB;TK=TEK;TW=Wing TEK;XX=N/A;AA1=Drop-in Anchors;AB1=Sleeve Anchors;AC1=Screw Bolt;AD1=Wedge Anchor;AE1=Wall Plugs;AF1=Metal Pin Anchors;AF2=Nail-in Plug Anchors;AG1=Threaded Rod Hangers;AH1=Hollow wall Anchors;BA1=Hex Head Bolts & Nuts;BA2=Hex Head Set Screws (Full Thread);BA3=Hex Head Coach Screw Only;BA4=Hex Head Bolts Only;BA6=Cup Head Bolts & Nuts;BA7=Cup Head Bolts Only;BA8=Gutter Bolts & Nuts;BA9=Gutter Bolts Only;BB1=Cap Socket Screws;BB2=Csk Socket Screws;BB3=Button Socket Screws;BB4=Set Socket Screws (Grub);BB5=Shoulder Socket Screws;CB1=Wood Screws - Csk - Pozi;CB2=Wood Screws - Csk - Square;CB5=Wood Screws - Pan - Square;CB6=Wood Screws - Csk - Slot;CB7=Wood Screws - Pan - Pozi;CB8=Wood Screws - Euro - Square;CB9=Wood Screws - Euro - Pozi;CC0=Self Tapping - Csk - Slot;CC1=Self Tapping - Csk - Pozi;CC2=Self Tapping - Pan - Pozi;CC3=Self Tapping - Mush - Pozi;CC4=Self Tapping - Pan - Pozi/Slot;CC5=Self Tapping - Csk - Square;CC6=Self Tapping - Pan - Square;CC7=Self Tapping - Rsd Csk - Square;CC8=Self Tapping - Csk - Phillips;CC9=Self Tapping - Pan - Phillips;CD0=Self Drilling (Metal) - Wafer - Phillips;CD1=Self Drilling (Metal) - Flat - Phillips;CD2=Self Drilling (Metal) - Csk - Square;CD3=Self Drilling (Metal) - Csk - Phillips;CD4=Self Drilling (Metal) - Hex - Hex;CD5=Self Drilling (Metal) - Button - Phillips;CD6=Self Drilling (Wood) - Bugle - Hex;CD6=Wood Screws - Bugle - Phillips;CD7=Self Drilling (Metal) - Pan - Phillips;CD8=Self Drilling (Metal) - Pan - Square;CD9=Self Drilling (Wood) - Hex - Hex;CDD=Self Drilling (Wood) - Wafer - Phillips;CE1=Machine Screws - Cheese - Slot;CE2=Machine Screws - Csk - Slot;CE4=Machine Screws - Pan - Slot;CE6=Machine Screws - Round - Slot;CE7=Machine Screws - Csk - Phillips;CE8=Machine Screws - Pan - Phillips;CEA=Machine Screws - Csk - Pozi;CEB=Machine Screws - Pan - Pozi;CF1=Collated Gypsum Screws;CF2=Loose Gypsum Screws;DA1=Drill Bit Attachments;DA2=Auger Drill Bits;DA3=Drill Bit Sets;DA4=Jobber (HSS) Drills;DA5=SDS Masonry Drill Bits;DA6=Straight Shank Drill Bits;DA7=Spade Drill Bits;DB1=Double Ended Drive Bits;DB2=Drive Bit Sets;DB3=Insert Drive Bits;DB4=Power Drive Bits;DB5=Drive Bit Attachments;DB6=Nutsetter;DC1=Bottoming Tap Bit;DC2=Intermediate Tap Bit;DC3=Taper Tap Bit;DC4=Tap Bit Sets;DC5=Tap Bit Attachments;EA1=Collated Impulse Nails;EA2=Collated Impulse Nails;EB1=Loose Csk Nails;EB2=Loose Flat Nails;EB3=Loose Jolt Nails;EB4=Loose Panel Nails;EB5=Loose Rose Nails;FA1=Acorn Nut (Cap);FA2=Barrel Nuts;FA3=Castle Nuts;FA4=Conelock Nuts;FA5=Coupling Nuts;FA6=Eye Nuts;FA7=Flange Nuts;FA8=Hex Full Nuts;FA9=Hex Half Nuts (Lock Nuts);FB1=Hex Pressed Nuts;FB2=Nylon-Insert Lock Nut;FB3=Square Nuts;FB4=Square Pressed Nuts;FB5=Tee Nuts;FB6=Wing Nuts;FB7=Rivet Nuts;GA1=Cotter Pins;GA2=Dowel Pins;GA3=Roll Pins;GA4=Split Pins;GA5=Spring Pins;GB1=E Type Circlips;GB2=External Circlips;GB3=Internal Circlips;HA1=Standard Csk Rivets;HA2=Std Large Flange Rivets;HA3=Standard Truss Rivets;HA4=Sealed Truss Rivets;HA5=Structural Csk Rivets;HA6=Structural Dome Rivets;HA7=Peel Type Truss Rivets;HA8=Multi Grip Truss Rivets;IA1=Batten Staples;IA2=Series Staples;JA1=Threaded Rod;KA1=Bellevilled Washers;KA2=Bonded Washers;KA3=Cup Washers;KA4=Fender Washers;KA5=Fibre Washers;KA6=Flat Washers;KA7=Heavy Washers;KA8=Disc Lock Washers;KA9=External Tooth Lock Washers;KAA=Internal Tooth Lock Washers;KAB=Star Lock Washers;KAC=Nylon Washers;KAD=Neoprene Washers;KAE=Spring Washers;KAF=Square Washers;KAG=Structural Washers;KAH=Taper Washers;KAI=Waved Washer;LA1=Engineering Adhesives;LB1=Construction Adhesives;MA1=Applicators & Accessories;MB1=Automotive Maintenance;MC1=Cleaners, Primers & Coatings;MD1=Fillers;ME1=Sealants;ME5=Tapes (Adhesive);ME6=Lubricants;MF1=Cut Off Discs;MF2=Flap Discs;MF3=Grinding Discs;MG1=Air Tools;MG2=Air Accessories;MG3=Compressors;MH1=Holesaws;MH2=Burrs (Cutting Tools);MH3=Circular Sawing Blades;MH4=Drilling (Cutting Tools);MH5=Sawing Blades/Hacksaw Blades;MI0=Riveters (Hand Tools);MI1=Clamping (Hand Tools);MI2=Cutters (Hand Tools);MI3=Drivers (Hand Tools);MI4=Electrical (Hand Tools);MI5=Hammers (Hand Tools);MI6=Pliers & Grips (Hand Tools);MI7=Sawing & Filing (Hand Tools);MI8=Socket Sets (Hand Tools);MI9=Wrenches (Hand Tools);MJ1=Calipers/Verniers;MJ2=Detection & Inspection;MJ3=Electrical Measuring Tools;MJ4=Levels;MJ5=Squares;MJ6=Tapes & Rulers;MK1=Accessories (Power Tools);MK2=Outdoor Tools (Power Tools);MK3=Batteries & Chargers (Power Tools);MK4=Combo Kits (Power Tools);MK5=Cordless (Power Tools);MK6=Drills (Power Tools);MK7=Grinders (Power Tools);MK8=Nailers (Power Tools);MK9=Planers (Power Tools);MKA=Nibblers/Shears (Power Tools);MKB=Routers (Power Tools);MKC=Sanders & Polishers (Power Tools);MKD=Saws (Power Tools);MKE=Screw Drivers/Impact Drivers (Power Tools);ML1=Eyes - Safety Equipment;UA1=Bottom Plate Anchor;UA2=Bracing Anchor;UA3=Header Block Anchor;UA4=Pile-Bearer Kit - Cantilever;UA5=Pile-Bearer Kit - Anchor/Braced Pile;UA6=Stren-Joist;UB1=Angle Brace;UB2=Fix & Foil Fix;UB3=Framing Bracket;UB4=Jamb Fixa;UB5=Jamb Tie;UB6=Knuckle Nailplates;UB7=Tim-Con Bracket;UB8=Knuckle Nailplate Coils;UB9=Multigrips;UBA=Nail-on Angle;UBB=Nail-on Diagonal Cleat;UBC=Nail-on Joist and Split Joist Hangers;UBD=Nail-on Plate;UBE=Plumbers Strap;UBF=Pole to Girt Bracket;UBG=Sheet Brace Anchor;UBH=Sheet Brace Straps;UBI=Strap Nail;UE1=Frame Fix;UE2=Ceiling and Purlin Hanger;UE3=Concealed Purlin Cleat;UE4=Cyclone Strap;UE5=Ezi Stud Tie;UE6=Batten/Purlin Strap;UE7=Strapbrace & Maxi Strap;UE8=Truss Boots;UE9=Windstrap;UEA="Z" and "U" Nails;UEB=Truss to Top Plate;UEC=Product Nails, Purlin Screws;UED=Structural Brackets;HF=Hingefast;SF=Surefast;TF=Twinfast;XX=N/A;B=BSP;C=UNC;F=UNF;M=Metric Fine;N=NPS;S=UNS;T=NPT;W=BSW;X=Metric Coarse;Y=BSF;Z=N/A;T=Truncated;V=Untouched;U=U-Cut;X=N/A;R=Right Hand;L=Left Hand;AA=0.25 mm (Metric Fine);AB=0.35 mm (Metric Fine);AC=0.50 mm (Metric Fine);AD=0.75 mm (Metric Fine);AE=1.00 mm (Metric Fine);AF=1.25 mm (Metric Fine);AG=1.50 mm (Metric Fine);AH=2.00 mm (Metric Fine);AI=3.00 mm (Metric Fine);AJ=4.00 mm (Metric Fine);IA=0.40 mm (ISO Metric Coarse);IB=0.45 mm (ISO Metric Coarse);IC=0.50 mm (ISO Metric Coarse);ID=0.70 mm (ISO Metric Coarse);IE=0.80 mm (ISO Metric Coarse);IF=1.00 mm (ISO Metric Coarse);IG=1.25 mm (ISO Metric Coarse);IH=1.50 mm (ISO Metric Coarse);IJ=1.75 mm (ISO Metric Coarse);IK=2.00 mm (ISO Metric Coarse);IL=2.50 mm (ISO Metric Coarse);IM=3.00 mm (ISO Metric Coarse);IN=3.50 mm (ISO Metric Coarse);IO=4.00 mm (ISO Metric Coarse);IP=4.50 mm (ISO Metric Coarse);IQ=5.00 mm (ISO Metric Coarse);IR=5.50 mm (ISO Metric Coarse);IS=6.00 mm (ISO Metric Coarse);IT=0.60 mm (ISO Metric Coarse);80=80 TPI;72=72 TPI;64=64 TPI;56=56 TPI;48=48 TPI;44=44 TPI;40=40 TPI;36=36 TPI;32=32 TPI;28=28 TPI;26=26 TPI;24=24 TPI;22=22 TPI;20=20 TPI;18=18 TPI;16=16 TPI;14=14 TPI;13=13 TPI;12=12 TPI;11=11 TPI;10=10 TPI;09=9 TPI;07=7 TPI;06=6 TPI;05=5 TPI;D4=4.5 TPI;XX=N/A;
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