TCT hole saw(Thick metal) HTTS-B D.O.C. 1

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HTTS-B

D.O.C. 1”

◎ Made of high quality solide carbide tips , reduce the damage of tips , increase the endurance

◎ Assembled with high quality center drill and spring

◎ Maxium cutting depth of 15mm on solid plate with pistol drill , and 25mm on solid plate with magnetic drills

◎ Shank diameter 10mm for hole saw Φ16mm~34mm , and Shank diameter 13mm for hole saw Φ35mm~100mm.

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Q: How do I take out an electric drill bit?: Drill bit: with a key, insert the key into the side hole of the drill sleeve and loosen the bit to remove the bit.

Q: The installation method of the electric hammer drill: Installed before the first drill, electric hammer drill chuck down below the eye in the end, the drill chuck and eye separation (and when necessary to drill chuck on the eye piece to mention) will be inserted in the end bit to the eyes, and then release the chuck let it return. After installed, the lift hammer bit hard top on the wall or ground test drilling, if a clear sense of the impact that the drill bit installed in place. Otherwise you'll have to reinstall it.

Q: How to install expansion screw? How big is the screw? What size is it? Or what? How do you see the size?: Expansion screws have models, usually M6, M8, M10, M12 and so on. M6 only refers to the diameter of the nut and screw. If drilling, the drill bit should be selected according to the diameter of the expanding part of the expansion tube. We usually use larger size drills.

Q: What drills should be used to drill holes with diameter 5mm and depth 65mm? Urgent! Thank you!: An ordinary twist drill with a diameter of 5mm and an effective working length of 80mm. High turn, frequently anti chip, multi pour cooling liquid.Only 65mm deep hole ah, just find a 5 drill bit, as long as long enough, the key is to see how the drill grinding.Parabola drills are generally long long hole drill 65 waste and can really wear parabola drills and few people.

Q: How can we change an ordinary drill bit into stainless steel?: With ordinary stainless steel drill bits to drill, speed down, such as 100, add a little vinegar when drilling well drilling. In two, the lowest drill about three hundred rpm, speed a little faster. It is better to drill on the vertical or rocker arm, and the speed can be adjusted lower.

Q: What drill is best?: The general drill is HSS high-speed steel, and if a good point is high-speed cobalt containing steel, black should be treated by blackening! Black Brown should be TIALN coated!! This drill is usually not custom-made, at most, take the standard drill bit to make a TIALN coating!!

Q: Angle action and characteristics of standard twist drill: The back angle of the selected point on the main cutting edge of the twist angle alpha Om is expressed by the feed back angle alpha Om in the point column section. The column section is the point m of the main cutting edge, a line parallel to the axis of the drill, and the cylindrical surface formed by the rotation of the line around the center of the bit. The alpha Om changes along the main cutting edge, and the closer to the center, the greater the alpha Om. The back angle of the outer edge of the twist drill is usually 8 to 10 degrees, and the back angle of the transverse blade is 20 to 25 degrees. This can compensate for the influence of the angle of the main cutting edge on the actual working angle of the main cutting edge due to the axial feed motion of the bit, and can adapt to the change of the front angle.

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: How do you drill a drill?: 6, after grinding, the drill rotation, simulation, drilling, cutting the status of inspection, to see if there is no wrong place, if there is further grinding;7, grinding the cross edge, that is, symmetrical sharpening drill bit after the blade;The 8 big bits can be sharpened by grinding on the side of the grinding wheel;9, steel bad twist drill, the vertex angle can be properly worn. .

Q: How much bit should we use to punch the M5 hole? Tapping with Duodasi attack? Why use 8.3 drill bit in the hole of M10? How do you know how big it is to punch and tap?: If the material soft bottom be slightly smaller, so hard to be slightly larger. As the aluminum tapping hole to drill small, alloy steel tapping will be slightly larger. M5 has a pitch of 0.8, so use 5-0.8=4.2's drill. The pitch is 1.5 M10, normal use 8.5 bit, if 8.3 words may be used as the material of soft, normal bit will lead to larger hole.

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