Countersink Drill Bit HSS Screw Depth Stop Collars 

Suitable for drilling machines with chucks or adapters,1 flute suitable for drilling in hard wood and wood layer, machine screw wood screw hown store

You can also use these countersink drills to remove the burr left from a drilling or tapping operation thereby
improving the finish of the product and removing any hazardous sharp edges.
Drills pilot, clearance hole and countersink in one operation for the most popular sized screws.
Suitable for woodworking applications where a flush screw head finish is required tapered drill bits.

Specifications:
Material: 4241 HSS+ 45# Steel
Color:silver+black
Drill quantity:7pcs

Drill Size:
5# 1/8"(3.18mm)
6# 9/64"(3.58mm)
7# 5/32"(3.97mm)
8# 11/64"(4.37mm)
9# 3/16"(4.76mm)
10# 13/64"(5.15mm)
12# 7/32"(5.56mm)

Features:
4241 HSS and 45#steel material
Durable and excellent workmanship
Have more gripping power than standard bits.
Fit for drilling machinery with clamp or joint.
7 specifications meet your different working demands.
It can be installed on drilling machinery with a clamp or joint suitable for drilling on hardwood.
The collar on these twist drills allows you to vary the depth of the pilot hole & the depth of the countersink.

Package included:
7pc Collar Stops
7pc Countersinks
7pc Drill Bits
1pc wrench
1pc Wooden storage box



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