MaxTool 21 Pieces Drill Set 21PCs/21-Piece Twist Drill Bit Set 5% Cobalt HSS M35 Fully Ground 1/16″ to 3/8″x64th Fractional; JBS35G10R021S. Material: High Speed Steel. Shank Type: Straight Cylinder. Cutting Angle String: 135 Degrees. Product Dimensions? 6.3 x 4.33 x 1.57 inches; 15.87 Ounces. Item model number? JBS35G10R021S. Date First Available? January 27, 2018. Country of Origin? China. Best Sellers Rank: #691,343 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #2,111 in Jobber Drill Bits. #2,111 in Jobber Drill Bits. Customer Reviews: 4.1 4.1 out of 5 stars 23 ratings. Drill bits include: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64, 1/4, 17/64, 9/32, 19/64, 5/16, 21/64, 11/32, 23/64 and 3/8 inch, 1/16 (0.0625) to 3/8″ (0.375) in 1/64″ increments. Premium 5% Cobalt High Speed Steel M35 provides all drills power cutting, impressive performace and long tool life. Precision fully ground edges and flutes ensure fast drilling, excellent chips moving smoothly and ultimate accuracy. Golden surface finish resists corrosion and increases the hardness of the drill bits for cutting hard steel, other metals, wood, and plastic. 135-degree split point prevents “Walking”, reduce logging, and penetrates hard material without a pilot hole. All drills can be used for cutting metal, plastic, wood, etc. Quality high speed steel M2 ensures sharp and fast execution in any material for clean results. Premium Heat treated is durable and can withstand heavy duty operation for a long tool life. Black Oxide and Golden Dual Surface Treatment holds up lubricant better for smoother drilling. Precision ground with geometry of 135 degree chisel with split point for quick penetration and an accurate start. MaxTool is a cutting tools distributor in New York to meet a wide range cutting demand of customers in today markets, which include automotive, aerospace, electronics, medical, printed circuit boards, optical industries, and more MaxTool maintains the leading spirit in supply of standard and custom-made high performance cutting tools, such as Polycrystalline diamond (PCD), Polycrystalline Cubic Boron Nitride (PCBN), Carbide, High Speed Steel (HSS) Tools, Hole Saws, Diamond Wheels, etc for machining ferrous, non-ferrous, composite, fiberglass, and carbon fiber materials. You can always rely on MaxTool MaxTool slogan is Consistent Quality MaxTool!