Amana Tool Carbide Tipped Countersink Drill Bit, 55208, 8-9 Screw, 7/16 Dia x 1/64 Drill Dia x 5/16 Round Shank

Product Description Used to Countersink holes for the heads of screws in woods, plastic and non-ferrous materials. The 2-Flute integral design ensures uniform and concentric results each and every time. Carbide tips provide chip free hole edges and lasts much longer than steel countersinks. Available in a wide variety of sizes, Complete with the HSS M2 fully ground drill bit, #55208, (A°) angle 49°, (B) Cutting height 1/2, (D) diameter 7/16, (D) shank 5/16, overall length (L) 3, wood screw size #8, D1 11/64, replacement drill 630-302, L1 1-5/8, 55208 carbide Tipped Countersink #8-#9 screw 7/64 dia x 1/64 drill DIA x 5/16 round shank From the Manufacturer Experience precision and efficiency with the Amana Tool Countersink Bit including a High-Speed-Steel (HSS) M2 fully ground drill bit. This countersink drill bit set for wood, composite, and aluminum is designed for long-lasting performance. This tool is designed to minimize chatter, reduce heat, and produce clean, precise holes in a variety of materials. Available in multiple sizes, the Carbide Tipped Countersink delivers dependable performance for professionals who demand precision and reliability. How To Use With A CNC Machine With the adjustable depth drill bit you can adjust for whatever size material you’re working with. They are most effectively used with a drilling toolpath, utilizing the peck drill option at .25" per pass with a .125" retract height. For optimal performance run at 3,000 RPM with a 30 IPM (Inches Per Minute) plunge rate. No feed rate needs to be set with these as they only move up and down with the Z axis, not side to side. If your software doesn’t allow a 0 feed rate, you can enter 1 IPM (Inch Per Minute) in the feed rate as a placeholder. For countersinks with 1/4" round shank, use 1/4" spring collet. For countersinks with 5/16" round shank, use 7-8mm spring collet. For countersinks with 3/8" round shank, use 9-10mm spring collet. Please note: When drilling aluminum-ferrous materials, for optimal performance and extended tool life use lubricant or air cooling. Make sure the material is fixed and the drill is stable during drilling.

• AMANA COUNTERSINK DRILL BIT: The countersink creates clean, concentric screw holes in wood, plastic, and non-ferrous materials with a 2-flute design; Complete with the HSS M2 fully ground drill bit
• IDEAL FOR DRILLING: Acrylic, Aluminum/Non-Ferrous, Aluminum Composite Materials (ACM), Composite Decking Materials, Chipboard, Man-Made Boards, MDF, Natural Woods, and Plywood
• CNC COUNTERSINK DIMENSIONS: 55208; Number 8-9 Screw; 49 Degree Angle; 1/2 Cutting Height x 7/16 Diameter x 1/64 Drill Diameter x 5/16 Round Shank; HSS M2 fully ground drill bit included
• CARBIDE TIPPED: This Amana countersink is designed for use in handheld drill, drill press machines, and CNC machines when used with a CNC Spring Collet; Carbide-tipped for long lasting performance
• INDUSTRIAL-QUALITY TOOLS: Amana Tool is an industry leader for over 50 years specializing in industrial quality cutting tools for the woodworking, plastics, aluminum, composite, and metal