Description of OCGIG Titanium Coated Spiral Groove
Material: HSS 4241 (High Speed Steel). Titanium coated to reduce friction and heat. Automatically deburr holes as you drill. Suitable to cut holes in a variety of material like iron plate, aluminum plate, insulation boards, PVC sheet, ect. Package includes: 3 x 4-12/20/32mm HSS Groove Step Drill.We will resend or refund if the customer receives a response quality problem!We are always willing to serve you.Thank you for your trust.
These bits are very aggressive and will still quickly drill any size hole after over a month of use, but the tips wear out very quickly! Makes drilling difficult without a drill pass.
Pros
Kit includes: 3 x 4-12/20/32mm HSS step drill bits. We will resend or refund if customer get any quality problem reply! for your trust.
has worked very well on my projects in wood, aluminum and some sheet metal no problems with bits they seem to edge drill the hole just fine, used ones are available more of these than originally planned, and some of the more expensive brand tiers I've worn in the past have endured.
Surprisingly large, fast and clean! I would still recommend a protective mask with steel rivets. Works great with thin and thick rivets, so I'm assuming stainless steel is no different. It also stays centered even though I use a medium torque impact gun.
Pros
Suitable for cutting holes in various materials such as iron plate, aluminum plate, insulation board, PVC film, etc.