Best Precision Counterbore

20Pcs Forstner Drill Bits, Rocaris Tungsten Steel Woodworking Hole Saw Set, Wood Cutter Auger Opener Round Shank Drilling Cutting Tool (14mm-50mm)

【High Quality Material】:The forstner drill bitsare made from tungsten steel and being hot-treated,sharp edge, high hardness, accurate positioning,high precision,smooth cutting,impact resistance,high toughness.more smooth,less noise..
【Various Sizes】: 14mm(0.55''), 15mm(19/32"), 16mm(5/8"), 17mm(43/64"), 18mm(45/64"), 19mm(3/4"), 20mm(25/32"), 21mm(53/64"), 22mm(55/64"), 23mm(29/32"), 24mm(15/16"), 25mm(1"), 26mm(1-1/16"), 28mm(1-1/8"), 30mm(1-3/16"), 32mm(1-1/4"), 35mm(1-3/8"),40mm(1-3/5"), 50mm(1.96'') which can meet your various needs in this professional set..
【Great performance】Sharp edge, accurate positioning, high hardness, impact resistance, high precision, smooth cutting, high toughness. Forstner Drill Bits can drill clean flat bottom holes with no chipping..
【Widely Used】:Drilling Counterbore can be used in wood drilling, installation of a spherical door slightly、 the drawer slightly、plastic products and gypsum board. Safer and more accurate to use this drill bit in a drill press..
【Application】：Suitable for pistol drill, bench drill, vertical drilling machine hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine,etc..

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.

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.

★ 【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..

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

Drill, countersink and counterbore in one step.
Four-cutter countersink and tapered drill bit provide superior speed and ideal finish.
Replacement tapered bits offered. Product consist of Drill Bit Only no tool holder.

...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..