Top Precision Ground Counterbore

Drill America - DEWA/CCBR9/16 DEWCBR Series Qualtech High-Speed Steel Aircraft Counterbore, 1/4\ Shank Diameter, 1/8\ Pilot, 2-13/16\ Length, 9/16\ Size (Pack of 1)

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..

Precision ground work table and spindle to high accuracy..
Assures straight perpendicular tapped holes. Rigid structure made of high grade tool steel..
9 tap adapters included: #6, #8, #10, 1/4, 5/16, 3/8, 7/16, 1/2 & 5/8" ..

Zinc die cast high pressure pump with ruggedly constructed precision ground piston.

Short Aerodynamic ferrule and low profile blades are specifically designed for the high speed of todays modern Crossbows.
Stainless Steel Trocar Tip is Precision Machined and Hardened to Rockwell 46C and Hollow Ground to a near razor edge to blast through bone.
Razor Sharp .027" blades are Precision Ground and Honed and are always perfectly in line with the Trocar Tip edges to increase penetration.
1-1/8" Cutting Diameter - 100 grain - 3 per package.

Superior Arrow flight and one of the strongest and best penetrating broadheads.
Stainless Steel Trocar Tip is Precision Machined and Hardened to Rockwell 46C and Hollow Ground to a near razor edge to blast through bone.
Razor Sharp .027" blades are Precision Ground and Honed and are always perfectly in line with the Trocar Tip edges to increase penetration.
100 grain - 1-3/16" Cutting Diameter - 3 per package.

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.