SYOSI 82°Countersink Drill Bit, SYOSI 5Pcs Free Replaceable HSS Drill Bits for Wood 3/8" Quick-Change, Chamfered Adjustable Drilling Tool Kit on Pilot Counter Sink Holes for Woodworking

Feature:

1.Worn-out or blunt drill bits can be easily readily replaced.
2.The user-friendly design enables full control of the drill length and it's replacement, without the need to disassemble the whole tool.
3.Countersink drill bit set is suitable for bench drill, hand drill and conventional electric drill. 
4.Suitable for wood, ceramic tiles, glass, chipboard, plastic, rubber, etc.
5.The three-point design can quickly and accurately drill smooth holes. 
6.The five-edge chamfer design will automatically remove chips from the holes on both sides.

Specification:

Colour: Black
Material: Metal
Package contents: 1 set x conical drill bit

Tips:

1. Make sure you are consistently drilling straight to avoid breaking bit and pick the drill in and out of the hole to avoid loading up the bit with chips.
2. It is recommended to use a center punch to position a starting point, preventing the drill bit from wobbling on the workpiece.
3. Best practice is to adjust all your settings (drill bit size, countersink size, depth stop location) and make a test drill into a piece of scrap before drilling the real workpiece.

• High Durability: This countersink drill bit set is proudly made of classic High Speed Steel with excellent hardness of HRC 62-64; It offers superior cutting power, high durability, and good abrasion resistance.
• True 82° Angle: These pilot screw countersinks bits are designed to match the most commonly used woodworking 82° screws you might encounter in the US and canada.
• Self-Cleaning: Drill bits are precisely fit into the countersink sleeves and the two chamfered flutes enable faster operation and self-clearing drilling on the swarf, making perfectly sized and shaped holes.
• Perfect Your Carpentry: The 2 in 1 design turns two-step countersinking into one-step operation. This can make perfect countersink holes for both flush-set and plugged screws, without splitting the wood and enjoying neat projects with drill bit sets.
• Multifunctional Use: Comes with 5 pieces of replaceable drill bits as a bonus and covers the full range of screw sizes. The countersink bits are ideal for bench drill, hand drill, and a conventional electric drill, perfect for wood, fiberboard etc.