Stainless Steel Drilling Bits

Hot Products

alloy bit thread bit from China for hardness rock tungsten carbide

Multisize Straight Shank Twist Drill Bits For Drilling Metal Iron and Aluminum Drill Bit

Hemispherical bit thread button bit from China R32 T38

taper buttton bit from China high quality

thread button bit from China R32 T38 T45 T51 connect shank 22,19,25

hemispherical bit thread button bit from China for hardness rock

thread button bit from China R32 T38 for hardness rock

thread drilling bit from China R32 T38 T45 T51

Top Hammer taper button bit dia34mm hot selling

taper button bit dia 34, 36,38 from China

FAQ

What is the difference between steel and high-speed steel?

In alloy steel series can't seem to find what it is, "tungsten steel" are a class of materials called hard alloy tungsten steel, this is a commonly known.

What does the cutting depth of the drill mean 3D?

That is, the diameter ratio of the drill, such as 3D, and the diameter of the drill is 20MM, the effective drilling depth is 60MM

Why is the drill hole drilled out of the hole triangular?

Drill bit too, two edge to the machined surface in contact angle and surface processing due to too large to cutting into bite cut,Do you like to take the knife to cut wood, and wood knife angle is close to parallel cutting more labor-saving and machine power led to the great bit angle is in itself lead to tremble bit hardtop surface triangular or pentagonal in inappropriate situations

How can the gun drill be unloaded?

You have to decide what is the drill or hammer. The drill is to use special wrench with teeth, no special wrench, can this tooth clamping cone drill, with a metal rod inserted in the cone under Kong Zhong, one hand holding forceps, a metal stick, twist, it fell. Hammer, seize the clamp bit press back at the same time, on the other hand, pull forward, will be able to take off.

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.

How do you determine the speed of the drill? Is there any standard?

The diameter of 2mm twenty thousand to 40mm 32 is mainly to see the diameter of iron chip is not sent out only primary coke is not a piece of burning speed is too high to slow down a block that feed enough that need grinding head shaking feed you attached to a long amount of iron is the thickness of it feed processing when you need cooling water;

The difference between left and right drills used to drill holes

There are very few places to use left-hand drills:1, the modular machine tool porous drilling gearbox design, due to local restrictions can not change the direction of the wheel, only left-handed drill.2, when the attack left hand thread need to drill hole, plane moment is easily broken by alternating reverse gear, left-hand drill.3, drilling thin-walled parts will appear spiral line, can be left hand bit repair.4, some of the spindle is subject to restrictions, can not use the right-hand bit.

What is the cause of the drilling mud bit?

Operation level factors: drilling speed too fast, not along the spiral drill track sliding down, but on the wall constantly scraping mud cake or cuttings, extremely easy to cause the drill bit balling is not difficult; the Kelly circular reaming bit under pressure or flush, but from the mud cake on the wall down, scraped or will drill bit balling; operation end drill is wrong, if the first start after the turntable, start the pump, will also cause bit balling; drilling in soft stratum, drilling is not uniform.