Detail 19 Piece HSS Drill Bit Set 1Mm-10Mm With Air Sandblaster Rifle Equipment Boron Carbide Sandblasting Head2 Industrial Tool Kit: 19 x Cobalt Alloy HSS Drill Bit Set & 1 Set x Air GunWhen the mixture comes out of the end of the hose, the spray nozzle accelerates the air and abrasive. The length of the cone, the inlet and outlet of the nozzle determine the pattern and speed of the jet medium exiting the nozzle. It is and can ensure a long service life. The composition of the coating material determines its wear resistance. Color: Silver + GoldMaterial: Aluminum Alloy + Boron Carbide + High Speed SteelHSS Cobalt Alloy Drill Bit: Twist drill bits are made of high speed steel for high hardness and durability. The surface of the drill bit is coated with titanium, which gives it a beautiful color. There are 19 pieces of drill bits in different sizes of the most popular drill bits. They are perfect for most drilling work and materials such as aluminum, wood, plastics. Sharp twisted drill bits will make drilling easier and easier. Surface Finish: Titanium PlatingType: Twist Drill Bit Head Diameter (mm): 1/1.5/2/2.5/3/3.5/4/4.5/5/5.5 5/6/6.5/7/7.5/8/8.5/9/9.5/10Shank Diameter (mm): 1/1.5/2/2.5/3/3.5/4/4.5/5/5.5/6/6.5/7/7.5/8/8.5/9/9.5/10Blade Length (mm): 10/15/20/30/30/40/40/50/55/55/60/60/70/75/75/80/80/80Overall Length (mm): 35/45/45/55/55/70/70/80/85/90/90/100/100/110/110/115/115/125/125/130Quantity: 19 pieces in totalGun airflow:Ideal for hand field of the gun Grinding machine and automatic type grinding machine, which is suitable for removing tar, rust, old paint and many other materials. Condition: Size: 89x47mmPackage Contents: 1 x Boron Carbide Nozzle1 x Air Gun19 x HSS Cobalt Alloy Drill Bit Set 1mm-10mmOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.