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JBWTL stainless steel special straight shank step drill bit. 90 degree countersunk head screw countersink drill. 180 degree step drill bit. drill

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JBWTL stainless steel special straight shank step drill bit. 90 degree countersunk head screw countersink drill. 180 degree step drill bit. drill
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Description

Note: Non-standard customized step drills, with a minimum order of 10 pieces for a single specification, the delivery time is about 10 days.


Product name: JBWTL/Jibawang 90°180°Straight Shank Step Drill (Patented Product)

Material: Heye hardened M2


Specification: M3 (small diameter 3.4*large diameter 6.5) 90 degrees, M3 represents for 3mm screws, small diameter 3.4 represents drills, the part of the small diameter drill is 3.4mm, major diameter 6.5 represents the part of the large diameter drill is 6.5mm, and 90 degrees represents the step The angle of the position is a bevel angle of 90 degrees. The same goes for other specifications.

Surface treatment: Nitriding treatment (black)

Production process: the whole material is fully ground, (non-ordinary modified drill).

Application: This drill has two functions of reaming and chamfering, which can improve processing efficiency. Used in iron, copper, aluminum, stainless steel, steel, etc.

In today's high labor costs, step drills save drilling time and improve drilling efficiency. They are ideal products for batch drilling in large factories. The quality of the step drill is guaranteed, and the surface nitriding treatment increases the service life of the step drill, especially for processing aluminum (aluminum alloy).