Utoolmart 20Pcs High Speed Steel Straight Shank Twist Drill Bits Set, 1.1mm Diameter Power Tool

Utoolmart High Speed Steel Straight Shank 1.1mm Diameter Drilling Twist Drill Spiral Drill Bits Set Power Tool 20Pcs

Utoolmart 20Pcs High Speed Steel Straight Shank Twist Drill Bits Set, 1.1mm Diameter Power Tool

High-speed steel 6542 (M2) has good process performance, good strength and willfulness, and is mainly used to manufacture complex thin-edged and impact-resistant metal cutting tools, while high-speed steel 4241 is generally used to manufacture high-temperature bearings and cold extrusion dies, etc. Grinding in multiple processes, the cutting edge is sharp, the cutting resistance is small, and the hardness is high. Spiral flute design reduces clogging and smooth chip evacuation Round shank design, easy clamping, tight clamping, no slippage The effect of punching is connected with the material and hardness of the hole. The higher the material hardness, the longer it takes. Reduced shank drills expand the size range capacity of a portable drill chuck. Common flute and overall length for minimal adjustment during tool changes. 1. Before drilling, mark the position where you need to drill. If it is a material with a relatively smooth surface, it is recommended to cover it with clay and other items to avoid the drill bit from slipping on the surface of the product. 2. When drilling, you need to add water while drilling, or directly put the product into the water to drill, which can effectively reduce the wear and tear of the product in use. 3. Drilling needs to be effected at high speed, smooth and without shaking, lightly press, and can't be squeezed hard.

Key Features

• ✅ ?Parameter?- Bit Diameter:1.1mm / 0.04 inch; Shank Diameter: 1.1mm / 0.04 inch; Cutting Length: 14mm / 0.55 inch; Total Length: 36mm / 1.42 inch.
• ✅ ?Material?- Twist Drill is made of high speed steel,High speed steel construction is designed for durability and extended tool life.
• ✅ ?Feature?- Heat Treatment can increase the hardness and corrosion resistant of twist drill bit.
• ✅ ?Application?- Perfect for copper, aluminum alloy,as well suit for wood.
• ✅ ?Special Design?- Fully ground spiral groove design clears particles quickly,decreases friction and heat for faster drilling performance.

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