Material: HSS
6pcs 5flutes countersink with hex shank
4pcs countersink with single hole
Hexagon Shank: Approx. 6.35mm ( 1/4″)
An 11-piece HSS countersink drill bit set typically includes the following features:
1. High-speed steel (HSS) structure: The drill bit is made of high-speed steel, which is durable and heat-resistant for long-term use.
2. Multiple sizes: This set includes multiple sizes to accommodate different screw sizes and materials.
3. 3-edge design: Drill bits are usually designed with three edges, which can remove chips smoothly and efficiently, reducing clogging and overheating.
4. Adjustable depth stop: Some kits may include an adjustable depth stop to control the depth of the countersink for consistent results.
5. Hexagonal shank: The drill bit can be designed with a hexagonal shank, which can be safely and quickly connected to the drill chuck.
6. Wide range of uses: This kit can be used for countersinking, deburring, and chamfering of wood, plastic, and metal materials.
7. Storage bins: Many kits come with convenient storage bins to keep items organized and protected when not in use.

With material applications in mind, Shanghai Easydrill Industrial Co.,Ltd, long a leader in high speed steel, cobalt, and carbide drill bits for metal, features a complete line of drill bits and hole cutting solutions for metal, wood, concrete, masonry,glass and other surfaces. Drilling, hole cutting, reaming, countersinking, tapping, milling, sawing, and deburring are comprehensively covered with Easydrill.
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