... Bit 7pcs/set 2.including 20/25/30/35/40/HSS Drill,L Wrench We have the following workshops: 1. Workshop 1 ... dental tools, jewellery tools and industrial tools, like dies, taps, hss or carbide end mills, counter sinks, step drills, cobalt drills ... Core Bit 7 pcs/set 20/25/30/35/40/HSS Drill,L Wrench