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Jarvis Cutting Tools, Inc. 100 Jarvis Avenue Rochester, New Hampshire, USA, 03868 800-258-7162 603-332-9000 Fax: 603-332-8069 Why Jarvis? Direct factory engineering design and support In-house testing of customer parts and materials Lowest cost solution Competitive pricing and delivery Continuous improvements Premium steel to meet application demands Surface treatments to optimize tool life Taps made from hardened blanks and bar stock Metric and fractional sizes to international standards Flexible supply arrangements Forgings Whether tapping aluminum, powdered metal, cast iron, compacted graphite or steel forgings, Jarvis taps have proven more cost effective than the competition.  For example, Jarvis produces taps for threading crankshafts, connecting rods and camshafts for a variety of engines, as well as taps for the blocks and heads.  To maximize production, cutting or forming taps can be designed from premium steels with radial and coolant through capabilities. Taps configured for your application Blind hole with minimal clearance Forming and cutting taps Coolant through Chip Removal Equally troublesome is chip removal when tapping deep, blind holes.  Jarvis has created different solutions each of which doubled tool life.  An M14 x 1.5 forming tap with coolant through made 4,000 holes per tap in automotive tie rod ends; the competition could only manage 2,000 holes.  If a cutting tap is required, a Jarvis tap with special geometry and coolant through outperformed the competition, 1.900 holes to 1,000. For deep blind holes Form taps (Jarflos) - no chips Spiral flutes to facilitate chip evaluation Coolant through Blind Holes Tapping shallow, blind holes with minimal clearance are particularly challenging.  For example, Jarvis taps are successfully threading ring gears which can also have left hand threads.  When tool life and thread quality are essential, innovative designs make Jarvis the unquestioned source for cost savings opportunities. Shallow, blind hole applications Coolant through Tap geometry to resist premature wear Carbide Taps Solid carbide and brazed insert carbide taps are designed for high speed tapping of cast iron and aluminum parts.  The wear resistant qualities of carbide taps make the ideal solution under certain machining conditions. Solid or brazed carbide High speed tapping Maximum tool life Fasteners Fasteners for automotive, aerospace and general purpose applications all demand consistent high quality threads.  And since fastener manufacturers operate with very close profit margins, the taps used must be cost effective by generating long tool life at the lowest possible cost.  Jarvis produces taps for these production applications.  Jarvis makes taps for a variety of applications to fit any tapping machine.  Jarvis will make the tap and bent shank complete, couplings for threaded shanks, or just the nib tap. Designed for a variety of materials Optimal designs for long tool life Consistent high quality threads Formed or cut threads Combination Taps Combination taps can reduce costs by doing multiple operations in one pass.  Jarvis offers combination tap drills with self-centering points off the shelf.  Tap and reamer combinations can also be manufactured.  Piloted taps ground to close tolerances are built to meet your requirements. Two operations on each tool Ground with close tolerances Made to reduce production costs High Speed In-die and In-line Tapping High speed in-line and in-die tapping operations demand precision.  When tapping 200 holes per minute, quality taps from Jarvis are essential.  Jarvis' line of stub length and standard length forming taps for these applications are unmatched in the industry when it comes to comparing cost and performance. Optimal designs for high speed tapping Stub or standard lengths Formed threads Cast Iron Pipe Fittings When an international manufacturer of cast iron pipe fittings needed to reduce the cost per part to remain competitive, Jarvis supplied the tap that increased tool life from less then 200 holes per tap to 2,000 holes per tap. Longer tool life Exceptional thread finish Lowest cost per part Forming Pipe Threads Forming tapered pipe threads are very challenging.  The formed thread advantages of strength, thread finish and productivity make these taps ideal when tapping shallow holes in steel tube material.  Run these taps twice as fast as a cutting tap and produce no chips and no burrs! Faster speeds Increased productivity Stronger threads Stainless Steel Applications A stainless steel application was especially difficult for the customer.  First the part was tapped within a 1/2 turn of the bottom of the hole and had a strict full thread requirement, so Jarvis held the projection tolerance to +/- 0.010 inches.  That gave the customer the precision needed to manufacture the part with the lowest possible scrap.  Second, Jarvis generated a hook angle and geometry that provided a superior burr free thread finish. Special geometry Close tolerances Burr free finish Thin Wall Steel Stampings Thin wall steel stampings are common applications mastered by using Jarvis taps.  Outstanding burr free finishes are achieved in these parts when either cutting or forming threads.  Automated production runs require consistent quality which is assured when using Jarvis taps. In-line set-ups In-die applications Consistent quality Cutting and forming threads Alloy Steels Jarteks are for through hole applications in carbon and alloy steels such as 4130, 4140, 1050, 6304, and 8740.  Jarteks improve tool life over general purpose taps.  Jarteks are in stock with spiral points. Titanium nitride coating Through hole applications Out perform general purpose taps Soft Materials Jarhook was developed for use in soft A286 (25 Rc or less). aluminum and stainless steel.  Tapping 0.300 inches deep in a 12 point nut made of A286, a 1/4-28 Jarhook beat the competition  by consistently making 1,200 parts per tap compared to 600 parts.  Jarhooks are stocked with spiral points for through holes.  The geometry can be applied to any application with or without spiral points. A286 (25Rc or less), aluminum, stainless steel Consistently outperforms competition Designs for through and blind holes Hard Materials Jartuff was designed for the toughest aerospace materials such as iconel, waspaloy and hard A286 (typically 35Rc or higher).  For example, a 4-40 Jartuff is used to tap a through hole that is 0.110 inches deep in an x-ray bearing shaft made of iconel 718 measuring 46 to 47 Rc.  The Jartuff tapped eighty parts versus just ten parts with the competition tap - that's an eight-fold improvement!  In a waspaloy fastener, 0.300 inches deep at 30 to 35 Rc, a 1/4-28 Jartuff produces 800 parts where the competitor's tap only gets 200 parts - a four-fold improvement!  These are common cost savings customers achieve using Jartuff. Inconel, waspaloy, hard A286 (35Rc or higher) Increases tool life Wear resistant geometry Titanium Applications Jartanium was specially developed for tapping titanium fasteners.  Jartanium taps have more than doubled tool life over competitive brands.  When the competition could only produce 500 holes per tap, Jarvis was called.  The Jartanium makes 2,000 holes per tap in a part that is 0.300 deep in 6AL4V titanium that is 30Rc.  This proven geometry is being used successfully in blind and through hole applications. Titanium applications through and blind holes Lowest cost per hole Ground with close tolerances

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