HPHOPE, make life better!
Specifications:
?Size: 1/4"
?Set Includes: 10 drill bits 1/4 inch
?Material: 5% Cobalt M35 HSS
?Angle Point: 135°
?Sank Type: Straight and Round Shank
?Packing: Plastic case
Features:
1.1/4" drill bits made from M35 High Speed Steel and contain 5% Cobalt, which increases wear-resistance, durability and extra longer life span
2.135° quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. Straight shank allows for firmly holding and accurate centering and makes drilling precise and faster
3.Fully ground spiral groove design clears particles quickly, decreases friction and heat for faster drilling performance
4.Perfectly Suitable for drilling holes as Stainless Steel, Copper, Cast Iron, Galvanized Pipe, Aluminum Alloy, Wood and Other Softer Metals
5.This drill bit fits the majority of power drill currently on the market and for easy storage, DIY, household maintenance and repair
Instructions for use:
1.Keep the drill bits vertical to the object when drilling, Be sure to make both bit and work piece stable. Tilted bit is prone to break during drilling
2.Control Speed and Pressure, When using bits with a power drill, it's recommended to use them with low speed and drilling pressure
3.Drilling metal will accumulate an amount of heat. Necessary to use cooling liquid during drilling to keep the bit cool
4.Thick metals are recommended to be drilled with drill press, which is more stable, and adjustable
Safety instructions:
1.Always wear safety goggles and safety items when drilling
2.Do not wear gloves to avoid hazard of getting caught in the tool and pulling your hand in to get mangled during bit spinning
3.Examine the bits before use for cracks or chips, Do not use damaged or bull bits
