![]() ![]() The thread forming tap as claimed in claim 10, wherein said at least one cutting part is axially aligned with said run-off groove.ġ2. The thread forming tap as claimed in claim 9, further comprising a groove formed in said outer peripheral surface of said main body between each adjacent two of said radial portions and on each side of said run off groove, wherein said at least one cutting part is located between said two grooves which are adjacent said run-off groove.ġ1. The thread forming tap as claimed in claim 1, further comprising a run-off groove between two of said radial portions, wherein said run-off groove has a shallower depth than any one of said radial portions.ġ0. The thread forming tap as claimed in claim 7, wherein said at least one cutting part is located between an adjacent two of said grooves.ĩ. The thread forming tap as claimed in claim 1, further comprising a groove formed in said outer peripheral surface of said main body between each adjacent two of said radial portions.Ĩ. The thread forming tap as claimed in claim 3, wherein a root of said chamfer part is formed smaller in depth than the root of said parallel thread portion, and said cutting part is formed at said root.ħ. The thread forming tap as claimed in claim 1, wherein said thread part is provided at the rear end portion with a run off which gradually decreases in diameter towards the rear end, said cutting part has an outside diameter nearly equal to the inside diameter of the internal thread, said cutting part is adjacent said run off and is configured so that when said main body is turned in said first direction, the crest of the internal thread is cut off after the internal thread is formed.Ħ. The thread forming tap as claimed in claim 2, wherein a root of said chamfer part is formed smaller in depth than the root of said parallel thread portion, and said cutting part is formed at said root.ĥ. The thread forming tap as claimed in claim 2, wherein a plurality of grooves extending in the axial direction of said main body are formed in the peripheral surface of said main body, and said cutting part is provided at a position of said radial portion between said grooves adjacent to said chamfer part.Ĥ. The thread forming tap as claimed in claim 1, wherein said thread part is provided at a tip portion with a chamfer part formed to gradually decrease in diameter as it extends away from the tip of said thread part, said cutting part has an outside diameter nearly equal to an inside diameter of the internal thread, and said cutting part is configured so that the crest of the internal thread is cut off when said main body is turned in a second direction which is opposite to said first direction.ģ. A thread forming tap comprising a plurality of radial portions disposed on an outer peripheral surface of a main body to form a thread part, said radial portions on said main body being configured to plastically deform an inner peripheral surface of a material to form an internal thread when said main body is turned in a first direction, wherein at least one cutting part configured for cutting the crest of the internal thread is formed between radial portions in the peripheral direction of the thread part.Ģ. ![]() ![]() They feature a precise flute design to ensure fast and easy chip clearance.1. Laser-etched marking ensures size identification and won't wear off. They are tooled to the most exacting specifications to ensure that bolts anchor securely. The rolled threads are more accurate and cleaner than machined threads. Made from heat-treated carbon steel, they are rust- and tarnish-resistant tools that work equally well in plastic drilling applications. They are recommended when there is sufficient room on a blind hole and tapping to the bottom of a hole is not critical. Precise flute design – for fast and easy chip clearanceīosch Plug Taps are ideal for cutting right-hand internal threads they are the most widely used type of tap, with three to five threads chamfered for general-purpose applications.Precision machining – designed to ensure that bolts fit tightly and anchor securely.Laser-etched marking – ensures size identification and won't wear off.Rust and tarnish resistant design – provides greater durability and accuracy.Rolled threads – deliver more accuracy and are cleaner than machined threads.Heat-treated carbon steel – provides superior durability and speed.Plug taps – engineered for cutting right-hand internal threads. ![]()
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