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DESCRIPTIONS OF DRILLS
JOBBERS - GENERAL PURPOSE POLISHED: (GP) This style drill is commonly called Jobbers and is of an intermediate length. This Drill is furnished with a 118° point; the smooth surface enhances the chip removal action. The straight shank style is suitable for a number of applications, materials, and can be used on a variety of equipment. [BACK]
GENERAL PURPOSE TREATED: The Black-Oxide treatment increases abrasion resistance, allows for increased chip flow, and helps eliminate chip welding. Used for drilling cast iron and carbon steels. [BACK]
HEAVY DUTY TREATED: Designed for drilling cotter pin holes and steering knules, it is also recommended for drilling high tensile strength steel. The heavy-duty drill is furnished with a 135° Split Point except in sizes smaller than 1/16th in fractional sizes and 52 in wire gauge sizes. The self-centering split-point helps eliminate walking at the drill point to provide more accurate drilling. The Black-Oxide treatment increases abrasion resistance, allows for increased chip flow, and helps eliminate chip welding.[BACK]
HIGH SPIRAL - HIGH HELIX (FAST SPIRAL) BRIGHT: Designed for the drilling of deep holes and has a 118° point, the high helix and open flutes allow for chips to clear the hole easily. This drill can be used in low tensile strength aluminum, copper, magnesium, and die casting materials. Other materials include soft steels, free machining brass and bronze, stainless steels, and screw machine stock.[BACK]
DYNA-FLUTE (PARA-FLUTE) BRIGHT: This drill with a 118° point is designed for rapid deep hole drilling, with the ability to operate at faster feed rates with reduced thrust. The special web construction with a wide parabolic shaped flute increases the chip removal rate and allows coolant to flow to the drill point. Due to its special geometry, wood-pecking or periodic retracting is virtually eliminated.[BACK]
COBALT: Cobalt drills come in a variety of sizes and styles. The cobalt is heat resistant, and they can be used in a number of different applications including, screw machines, and portable drilling applications used for drilling hard, tough materials.[BACK]
SETS: NYTD Sets are ideal for tool & die makers, machinists, electricians, garage mechanic's, and hobbyists. They all come in a metal index box, keeping sizes separate and easy to find. Available in a wide variety of sizes and styles.[BACK]
TAPER LENGTH: These drills are used when a longer overall and flute length are needed and come in a variety of different styles such as High Helix, Dyna-Flute, and Tanged, they also come surface treated, polished and with both 118° and 135° drill points.[BACK]
TAPER SHANK: Designed to fit ANS (MORSE) Taper Sockets and Sleeves. Features include a 118° Point and a Black-Oxide treatment that increases abrasion resistance, and helps eliminate chip welding. They can be used in a number of different types of applications and materials.[BACK]
SCREW MACHINE LENGTH: The shorter overall, and flute lengths offer increased rigidity for use in screw machines and other applications such as portable drilling. They come in a variety of styles including: HSS polished and treated, NAS series, and Cobalt.[BACK]
CORE DRILL (4 FLUTE): The 4 fluted Straight Shank Core Drill is furnished with a 118° Included Chamfer Angle, and a Black-Oxide treatment. We recommend the 4 flute for enlarging holes that were already drilled or cored to approximately 60% of the drill diameter. These are also available with a Taper Shank to fit ANS (MORSE) Taper Sockets and Sleeves.[BACK]
CORE DRILL (3 FLUTE): The 3 fluted Straight Shank Core Drill is furnished with a 118° Included Angle Chamfer Angle, and a Black-Oxide treatment. We recommend the 3 flute for cored or cast holes that are out of round.[BACK]
SOLID CARBIDE DRILLS: Made out of solid carbide these drills assure true, accurate and smooth holes. They can be used for the drilling of beryllium, non-ferrous alloys, fibreglass, plastics, resins, epoxies, and hardened steels.[BACK]
CARBIDE TIPPED STRAIGHT SHANK DRILLS: The high abrasion resistance of carbide plus the flexibility of a HSS body make this the perfect tool to drill castings, copper, bronze, and other non-ferrous materials which have abrasive qualities. Available in fractional, letter, and wire gauge sizes, as well as in taper length and taper shank styles.[BACK]
MASONRY DRILLS (CARBIDE TIPPED): These are available in a regular spiral for chip clearance of dust and other powdered materials, and a fast spiral for drilling hardened concrete. Also available in extra lengths.[BACK]
DIE DRILLS (CARBIDE TIPPED): These are designed with a 118° Point and for use in hardened steel of up to 65 Rockwell C. Die Drills can be run up to 75-100 fpm and when used in deep hole applications should be withdrawn frequently to clear the chips.[BACK]
SPADE DRILLS: Spade drills are adaptable to a wide variety of production and non-production applications. This is an excellent tool for the drilling of a large variety of diameter holes, since a wide range of inserts will fit in the same size holder. This will also aid in the reduction of drill inventory.[BACK]
SPADE DRILL INSERTS: NTD's Spade Drill Inserts come standard in premium Cobalt and are available with a variety of surface treatments for enhanced life and productivity. The treatments available are Nitride/Oxide, TiN, TiCN, and are now available with TiALN. Our inserts are CNC ground with an accurate web point thinning which minimizes end thrust, providing improved hole finish and consistent straight holes. Our inserts are also compatible with other manufacturers holders. [BACK]
MISC. - CENTER DRILLS: Designed to produce accurate and true centers on your work piece in screw machines, and also allows for perfect alignment for follow up drills. Can be used for spotting holes for tap drilling and can help reduce breakage on tapped holes. [BACK]
SPOTTING AND CENTERING: Designed for centering operations. They feature short overall and flute lengths, this provides increased rigidity, which reduces run out. Available in both Left and Right hand.[BACK]
STOVE BURNER DRILLS: Designed with short flutes and sturdy construction with no body clearance. Recommended for drilling cast iron burners for gas ranges, furnaces, and other gas heating equipment. Used by the Gas conversion, gas utility, as well as the airframe industries.[BACK]
DOUBLE MARGIN DRILLS: Used for drilling of close tolerance holes. These can be supplied with a step to rough bulk of material from the hole. [BACK]
HOLE OPENER DRILLS: Made of heat resistant COBALT. We suggest that NO. 40 or NO. 30 locater holes be drilled first. When the parts are in place, locater holes can easily be "opened" up to proper rivet size.[BACK]
TAPER-LOK CUTTERS: Manufactured to exacting aircraft specifications, our Taper-Lok Cutters fill the need to form precision shapes in aircraft structures. Available in HSS, COBALT, and CARBIDE.[BACK]
COMBINED DRILLS AND COUNTERSINKS: These are designed with 118° Point Angle and a 60° Countersink Included Angle with Spiral Flutes. They are used for center holes in work pieces for additional manufacturing operations. Available in HSS, COBALT, and CARBIDE. The Bell type is furnished with a 118° Point Angle and a 60°/120° included angle. Also available in an extra long series.[BACK]
DRILL & COUNTERSINKS FOR WINSLOW: These are used in tandem to machine the hole that is used to fasten the wiring on aircrafts. Available in HSS and heat resistant COBALT.[BACK]
CENTER REAMERS: These 3 flute HSS Short Countersinks are designed for countersinking holes for centers, flat head screws, and rivets.[BACK]
MACHINE COUNTERSINKS: Made of HSS and have 4 flutes. They have added shank length and radial clearance.[BACK]
HIGH SPEED COUNTERSINKS: The single flute styles are designed for machine and light portable work and work at higher speeds and lower feeds. Other applications include chamfering, deburring, and hole enlarging. The 3 flute style are designed for machine and portable drilling applications, and can be used in chamfering and deburring operations, and should be run at 1/2" to 2/3" the speeds of those recommended for drilling.[BACK]
SILVER & DEMING (S&D): S&D drills are designed with 1/2" shanks with 3 flats, to fit 1/2" drill chucks. Used in both drill presses and portable drills where the drill diameter is larger than chuck available. Provided with a Black-Oxide treatment for abrasion resistance and helps to prevent chip welding.[BACK]
REDUCED SHANK - METALWORKING DRILLS (1/4" SHANK): Designed for sheet metal work but can also be used for wood, and metal drilling. Can be used in either drill presses, or portable drills. Because of the short flute length that provides greater rigidity, breakage is also minimized.[BACK]
EXTRA LONG DRILLS: These come in a variety of different lengths and styles, and are used when extra reach is needed. Made to a general-purpose construction.[BACK]
NAS A: These drills are used in the aircraft industry and meet NAS 907 specifications. They feature a 118° Split Point and Nitride-Oxide treatment for abrasion resistance and improved chip flow. The flute and overall length are the same as (GP) Jobbers Drills. These drills are used for drilling mild steel, aluminum, magnesium, and other soft alloys and are suitable for both portable and machine drilling. [BACK]
NAS B: These drills are used in the aircraft industry and meet NAS 907 specifications. Features include a 135° Split Point and a Nitride-Oxide treatment for abrasion resistance and it helps to eliminate chip welding. The Type B has a heavier design than the Type "A". This drill is used for drilling hard steel, titanium, and stainless steels and is suitable for both portable and machine drilling. The flute and overall length are the same as a (GP) Jobbers Drill. [BACK]
NAS C: These drills are used in the aircraft industry and meet NAS 907 specifications. They feature a 135° P3 Split Point and are designed for use in power and portable drilling of hard steels, stainless steels, titanium and other hard materials. Type C drills are Liquid Nitrided on #30 and larger sizes, and Black-Oxided on all others. These drills are available in fractional, letter, and wire gauge sizes. [BACK]
NAS D SHORT FLUTE (SSM): These drills are used in the aircraft industry and meet NAS 907 specifications. They feature a 135° Split Point and they are made of heat resistant COBALT steel with a heavy-duty construction. They have screw machine length flutes and are suitable for portable drilling. They are available in fractional, screw machine, and wire gauge sizes. They are treated with Black-Oxide for abrasion resistance, and to eliminate chip welding.[BACK]
NAS F: (COBALT) These drills are used in the aircraft industry and meet the NAS 907 specifications. They feature a 135° Split Point and are made of heat resistant COBALT steel. They are designed for use in portable power tools, and portable hand tools for drilling in hard, and tough sheet metal alloys of stainless steel and titanium. These styles of drills are available in fractional, letter, and wire gauge sizes. They are treated with Black-Oxide for abrasion resistance, and to eliminate chip welding. [BACK]
NAS J (COBALT): These drills are used in the aircraft industry and meet NAS 907 specifications. They feature a 135° Split Point and are made of heat resistant COBALT steel with a heavy-duty construction. They are used for drilling hard, tough materials such as Titanium and Waspaloy. [BACK]
AIRCRAFT EXTENSION: These drills are used in the aircraft industry and meet the NAS 907 specifications. They Feature a 135° Split Point and are made of heat resistant COBALT steel and HSS. The HSS drills are furnished with a Nitride-Oxide treatment and the Cobalt are furnished with a Black-Oxide treatment. These are available in 6" and 12" overall lengths. Extension drills are ideal for use in portable and electric air drills for drilling cowlings, spars, and firewalls. These drills are available in fractional, screw machine, and wire gauge sizes. [BACK]
RIVET KNOCKOUT DRILLS: Designed with a special flute helix and split point they are designed for the removal of heat and age hardened rivets. COBALT styles are recommended for hard rivets, while HSS are recommended for aluminum.[BACK]
TAPER ROUTERS: Designed to be used in clearance cutting or routing, and trimming doorsills plexi-glass cowlings as well as wing terminals on bulkheads and ribs on fuselage.[BACK]
THREADED SHANK ADAPTER DRILLS: These drills permit right angle drilling in hard to reach places. They feature a threaded hex nut behind the flute for easy insertion and removal, and a 135° Split Point for quick start and easy penetration. Standard drills are made of HSS, but also available in heat resistant COBALT.[BACK]
SPACEMATIC DRILLS: These are used in portable machines to produce close tolerance holes in the aircraft industry when the work piece cannot be moved. Available in HSS and heat resistant COBALT.[BACK]
DRIVEMATIC DRILLS: They are used in fixed machines by the aircraft industry and can countersink, drill and rivet all in the same application. Available in HSS and heat resistant COBALT.[BACK]
TRACK BITS: These railroad bits are made from HSS and have a flat beaded shank. They are Nitride treated for extra durability, and allows for drilling in both soft and hard rail. Our bits fit all major rail drills in use. Available in both single and double end.[BACK]
SPIRAL BITS - SPIRAL FLUTED TRACK BIT (COBALT): This bit is made of heat resistant COBALT and have a Nitride treatment for extra durability. Cobalt bits can be easily resharpened. They also fit all major drilling machines in use.[BACK]
TIE BORE DRILLS: These drills are designed for drilling spike holes in wooden railroad ties and can be supplied in 1 or 2 flute designs.[BACK]
BONDING DRILLS: Designed for drilling holes for bonding wires in track signal work, and can be supplied with either flattened or round shanks. Made of HSS or heat resistant COBALT.[BACK]
JOBBERS TANGED - AUTOMOTIVE TANGED SERIES: This drill is made to (GP) construction and is furnished with a 118° Point. The tangs are for use in ANSI split sleeve drill drivers and comes with a Black-Oxide treatment that increases abrasion resistance, and helps eliminate chip welding.[BACK]
HEAVY DUTY BODY DRILLS: Used in major automobile assembly plants these drills feature a Black-Oxide treatment for abrasion resistance and helps to eliminate chip welding. Furnished with a 130° included angle and are Split for easy penetration. They are also available in a variety of styles and sizes including single and double end.[BACK]
FISHTAIL POINT BODY DRILLS: Designed to drill holes in thin material where the ratio of hole size to material thickness is very large. A guide bushing is required, set close to the material being drilled to center the drill point. [BACK]
CRANKSHAFT DRILLS: Designed for drilling holes in forged crankshafts, also used in steel forgings, alloy steels, titanium alloys, aluminums, and stainless steels.[BACK]
VENT DRILLS: These High Helix drills are designed for drilling the initial vent hole in the manufacturing of molds, also are used in the tire industry for clean-out work.[BACK] |
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