Unique step structure, a drill can open a variety of sizes of aperture, a step drill against a box of drill. Does not need to use the center punch, compared with the ordinary Twist Drill is not easy to break. Site construction, a step drill for a variety of specifications. Deburring, chamfering, opening elliptical hole reaming, twist drill could not complete the functions it became possible. Compared to a regular twist drill. Small shaking, do not need to use the center can also open a beautiful aperture out. Tools: handgun drill, bench drill. While working, water injection cooling can effectively extend the service life of the Drill Bit, and the recommended drilling speed is 250-400 RPM.
Product Name round shank /hex shank HSS tin-coated step drill bit
Model Number GM0330001
Material HSS 4241/ HSS 4341/ HSS 6542/ HSS M35
Size 1/4"~1 -3/8" *10 steps
Color TiN-coated
Package double blister card / plastic box
MOQ 1pc for sample testing
10000pcs for mass production
Feature New HSS Steel Large Step Cone Drill Titanium Bit Set Hole Cutter,
which is made from high quality HSS steel, and with the Titanium coated to reduce friction and heat
Delivery time 15~45 days, according to order quantity
Payment terms T/T, D/P, L/C, Paypal, Western Union, ect.
Certificated BSCI
Detail Image:
Product Categories : Drill Bit > Step Dril Bit
