Q:Why can't the tap be nitrided? Drill bits are available.

Because the tap material is high speed steel, the cutting line speed is too low, coating cost performance is not high. So previous coatings were used less.

Q:Drill bit specifications

No, because the diamond drill bit and drill, impact drill bit ordinary regardless of specifications, size and shape are inconsistent, on the one hand can not install the clamping key is no guarantee of safety and accuracy.

Q:By drilling with a bit, why is the hole drilled straight 2 larger than the diameter of the drill?

The drilling depth - to determine the guiding edge and drilling parameters of the drill: shallow ordinary drill, a set of parameters, if more than 10 long deep hole diameter ratio, cooling the drill bit will choose to guide blade, and soon after the first slow step feed, with 2 sets of parameters, the other through hole, then reduce the parameters in the proposal through;

Q:What does SDS+ mean in a drill?

Also useful plus or max, SDS+ (SDS plus) said the four hole round handle drill, SDS Max said the five hole round shank drill, you think, the drill bit is fixed with 3 tunnel, a tunnel called plus, 5 very close, almost no room, so it is indicated by Max.

Q:The difference between left and right drills used to drill holes

Difference upstairs has been said, the drill designed to be right-handed, there are 1 reasons, the main direction of the motor. 2 because of the relationship between the centrifugal force, designed to turn right, more labor-saving. Taps are designed solely for ease of use

Q:CNC machine tools I use 6.5 bit drilling out is 6.7, what method can be solved?

Finish with 6 and take 6.5 of the drill. Or trim the bit edge of the drill bit slightly

Q:What's the difference between a twist drill and an impact drill?

Percussive drills work by rotating and impacting. A single shock is very slight, but a shock frequency of more than 40000 minutes per minute can produce continuous force. Used of natural stones or concrete. When the impact drill works, the drill chuck is provided with an adjusting knob, which can be adjusted in two ways: an ordinary hand drill and an impact drill. But the impact of drilling is the use of internal gear to achieve mutual beat of impact, but the impact is far less than the hammer. It is not suitable for drilling reinforced concrete.

Q:Hammer can play with an electric drill steel, can you

The disadvantage is that the vibration is large and has a certain degree of damage to the surrounding structures. The steel bars in concrete structures can not be passed smoothly. They can not be too close to the building because of the scope of work.

Q:Tap 10 taps, what size drills do we use?

Brief introduction of tap:As a tool for machining internal thread taps, according to the shape can be divided into straight edge and screw tap tap, in accordance with the use of the environment can be divided into hand taps and machine taps, made in accordance with the specifications, and can be divided into metric, British tap, according to the origin can be divided into domestic and imported tap tap. Tap is the most important tool for operators to process thread.

Q:Why do you always burn drills?

If it's made of stainless steel, there's also a drill, a cobalt white drill, which I've often used, though expensive, but super durable. If the ordinary drill, the speed of 500 to 800 minutes, on the high burning.A class of white steel line, color grinding when not, point to be around 118, as high temperature resistant. The speed is about 1000.