Best Counterbore Insert

Litorange 360PCS M2 M2.5 M3 M4 Female Thread Knurled Nuts Brass Threaded Insert Embedment Nuts Assortment Kit,for Daily Repair 3D Printing Projects

★ 【Sizes】Brass thread inserts kit includes 4 assorted of size that contains M2，M2.5，M3,M4.Come with a plastic box, each size be placed in a single grid, no mess and easy to find..
★ 【Material】Made of high quality environmentally friendly brass material, high strength and hardness, strong tolerance, the force is evenly tightened, you can use it for a long time..
★ 【Excellent Workmanship】 The embedment nut has a high-precision thread that is compatible with the corresponding screw and the insert has a guide so there is no need for a counterbore or countersink. Smooth surface with no burr, standard circular, firm and uniform, easy to install..
★ 【Easy To Use】These Brass Threaded Insert Embedment Nuts can be installed by ultrasonic or heat into thread tapered hole, or molded in during injection, the material of the nut is brass and it can resist heat..
★ 【Wide Applications】Widely used in mobile phones, laptops, various plastic casings, communications, micro-motors, computers, electrical appliances, electronics, toys, watches, lighting, locomotives, etc, and it can be mounted into the taper hole by ultrasonic or heat, or molded during injection..

M6x12x7-5pcs. Smooth surface with no burr, standard circular, firm and uniform, easy to install..
✅【STRANDARD AND COMPLETE THREAD】Deep thread, neat and clean, not easy to strip during rotation, stable and reliable. No need to counterbore or countersink the boss hole because the insert has guide pilot..
✅【A MUST HAVE】These heat set inserts can be widely used on the injection moulding for tightly fixing. Can be installed by ultrasonic or heat into thread tapered hole, or molded in during injection. Also apply to circuit board assembly and in the field of electronics. The plastic is formed around the brass insert. It would be better to put something in the threads to keep plastic from melting into the center. Using a normal soldering iron, you could easily set them into 3D printed holes..
✅【QUALITY AFTER-SALE SERVICE】If you do not satisfy with our products or if you have any questions, please come to us for help. We would work out a satisfactory solution to your problem. 12 hours response service!.

High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance.
Round shanks allow use with a wide variety of toolholding systems.
Counterboring is the enlargement of a portion of a hole that has previously been formed.
The counterbor is a two-piece construction, having an integral shank and counterbore-cutter, and a pilot that is interchangeable, which provides flexibility in the use of the tool.

...rresponding screw, avoiding to slip. Smooth surface without any burr, standard circular, firm and uniform, easy to install..
【Easy to Use】These threaded insert nuts can be installed by ultrasonic or heat into thread tapered hole, or molded in during injection. Since the insert has a guide, there is no need for a counterbore or countersink..
【Practical Fastener& Wide Application】Perfect for the injection moulding for tightly fixing, heat into thread tapered hole and ultrasonic installation.
Widely applied in laptop plastic housings, 3D printers, automotive,electrical injection molding, and all kinds of plastic casings..

High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance.
Round shanks allow use with a wide variety of toolholding systems.
Counterboring is the enlargement of a portion of a hole that has previously been formed.
The counterbor is a two-piece construction, having an integral shank and counterbore-cutter, and a pilot that is interchangeable, which provides flexibility in the use of the tool.

【Main purpose】: Countersunk end mill is a specially manufactured tool, mainly used to cut holes that allow bolts or screw heads to be screwed into..
【High precision】: The cutting hole and bottom hole of this tool have high alignment accuracy. Because of its high production efficiency, it is often used in the machining industry..
【High-quality and durable】: The Pilot Counterbore End Mill Cutters is made of hard high-speed steel, with high toughness, wear resistance, and high hardness for high-speed cutting.
it is usually used for assembly on a milling machine..
【More time-saving】: Countersunk cutters reduce the time to change tools, improve the efficiency of machine actuator movement and save manufacturing time..
【Wide range of applications】: Counterbore bit set is suitable for milling of copper, aluminum, steel, cast iron, etc., and can be directly processed or finely processed to heat treatments..

Drill, countersink and counterbore in one step.
Four cutter countersink and tapered drill bit provide superior speed and ideal finish.