Utoolmart Round Shank Twist Drill Bit, 4.2 mm Dia HSS-4241 Twist Drill Bit, Black Drill Bit Drilling Tool, for Steel Aluminum Alloy, 10 Pcs

Utoolmart Round Shank Twist Drill Bit, 4.2 mm Dia HSS-4241 Twist Drill Bit, Black Drill Bit Drilling Tool, for Steel Aluminum Alloy, 10 Pcs

【Description】- Main Color: Black; Material: HSS-4241; Product Name: Twist Drill Bit; Shank Diameter: 4.2mm / 0.17-inch; Bit Diameter: 4.2mm / 0.17-inch; Cutting Edge Depth: 43mm / 1.69-inch; Total Length: 75mm / 2.95-inch. 【High Speed Steel tool】- High Speed Steel construction with black rolling, nitriding treatmentfinish for proven capability and durability. 【Faeture】- Flutes form helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process. 【Advantage】- The twist drill has high wear resistance and durability, and is easy to store and carry. 【Application】- Perfect for stainless steel, copper, aluminum alloy, as well suit for wood, plastic. Utoolmart HSS-4241 Round Shank Twist Drill Bit Drilling Tool

Descriptions
* Twist drill bits are made from high-speed steel for high hardness and durability.
* Twist drill bit with round straight shank, sharp spiral groove.
* Used widely to drill the metal (such as 0-10mm Stainless Steel sheet, Aluminum or Iron plate) and marble,etc.
* The twist drill bit is used with electrical drilling machine.(here is not included)

How to Use Twist Drill Bits
* Ensure the left and right cutting edges of the drill are symmetrical when drilling.
* Observe the uniformity of the spark while drilling, adjust the pressure in time, and pay attention to the cooling of the bit.

Technical Parameters
* Product Name: Twist Drill Bit
* Material: HSS-4241
* Color: Black
* Shank Diameter: 4.2mm / 0.17-inch
* Bit Diameter: 4.2mm / 0.17-inch
* Cutting Edge Depth: 43mm / 1.69-inch
* Total Length: 75mm / 2.95-inch
* Surface Treatment: Rolling, nitriding treatment

Package Content
* 10 Pcs x Twist Drill