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On the following pages you will find information about DTFLOCK Taps / Gages.
1. Tap Materials: High Speed Steel (HSS), Carbide
2. Tap Classes, Characteristics and Specifications.
Table 1: Tap Types, Characteristics and Specifications
|Types||Series number||Characteristics||Size Range metric||Size Range inch|
|General Purpose Tap||series number R620-GPT||■ Standard shape of taps. ■ Used for nuts, through holes or blind holes.||M5-M200||10-32 to 6 "- 4|
|Fast Spiral Fluted Tap||series number R620-FST||■ Deep Holes (cutting chips going up) ■ Cutting speed 30 ~ 50% higher than standard taps. ■ Larger flutes and sharper cutting edges. Used for non-ferrous metals.||M5-M200||10-32 to 6 "- 4|
|General Spiral Fluted Tap||series number R620-GST||■ Used for ferrous metals ■ Chips going up. Used for deep holes.||M5-M200||10-32 to 6 "- 4|
|Spiral Point Tap||series number R620-SPT||■ Has a spiral point on top of the flutes. Cutting chips going down. Used for through holes. ■ Sharp cutting front with higher cutting speed.||M5-M200||10-32 to 6 "- 4|
|Cold Forming Tap||series number R620-CFT||■ Generate threads by cold forming instead of cutting. ■ Require small tolerance for the holes ■ Used for the material easy to reform.||M5-M12||10-32 ~ 1/2-20|
|Interrupted Tooth Tap||series number R620-ITT||■ Along the spiral line, the cutting teeth is missing for every other tooth. This type of tap construction can be made for every other type of taps. ■ Special material, such as aluminum, copper, titanium alloy, etc. ■ Deep holes or larger cutting torque ■ Larger pitch||M5-M200||10-32 to 6 "- 4|
How to order: R620-DTFLOCK series number - size - material Example: R620-GPT-M20
Note: standard material is HSS and does not need to be called out.