Product Name : End Mill;Material : HSS | Color : Gray;Cutting Diameter : 1/8" 3/16" 1/4" 5/16" 3/8" 1/2" 5/32" 1/16" | Suit for: Hardness of metal for above 30 degrees,with high bending resistance and abrasion resistance, exclusive to HIGH HARDNESS, HIGH SPEED CUTTING applications. | End mill bits are suitable for side milling, end milling, finish machining, etc. Apply to carbon steel, soft alloy steel, die steel, tool steel, cast iron, titanium, aluminum, etc. | The bottom of end mill bits is u-shaped groove design, large front angle effectively reduces cutting resistance, sharp and durable, convenient for chip removal, further improve machining efficiency.

Titanium Combination Drill taps are made of HSS 4341, which can ensure sharp, fast execution and retain strength and efficiency. The surface is treated with a titanium alloy, which greatly improves the cutting performance of the drill, is more wear-resistant and prolongs the service life. | Three in one operation provides hole drilling, tapping, deburring and countersinking for a quick and complete job on copper, brass, aluminum, sheet metal and plastic | This tap set includes SAE , so it has high versatility. Each tap drill is engraved with a label, which is convenient for you to choose the size that suits you. The convenient ¼-inch (6.35mm) quick change hex shank has a tapered end to prevent excessive knocks. Back taper exceeds the tap to prevent over-drilling and damage to the thread. | 6pcs drill tap set including SAE- 6-32nc, 8-32nc, 10-24nc, 10-32nc, 12-24nc, 1/4-20nc | Storage case is lightweight and durable for easy storage and is portable for all job environments