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【Step & Cone Drill Bits】Includes 3 titanium-coated step drill bits (4–12mm, 4–20mm, 4–32mm) and 1 cone drill (8–20mm). Each bit features laser-etched size markings for quick, precise hole measurement and smooth step transitions—ideal for sheet metal and DIY applications.
【Durable Titanium-Coated HSS】Crafted from premium high-speed steel with a titanium finish for extended lifespan, corrosion resistance, and reduced friction. The 1/4” hex shank fits securely in standard drill chucks and ensures stable, accurate drilling in metal, wood, and plastic.
【Countersink Drill Set】Comes with 6 high-precision countersink bits (6.3 / 8.3 / 10.4 / 12.4 / 16.5 / 20.5mm, 90° point). Each bit has three cutting edges for fast, clean, and chatter-free results—perfect for deburring, enlarging, or finishing holes in wood, plastic, or soft metals.
Adjustable Depth: Pilot and counterbore depths are adjustable for precise drilling by using the included wrench to adjust the depth stop and bit. Additional plastic collar minimizes surface damage
9-Size Quick-Change Efficiency: 50% Faster Than Standard Bits Reversible heads flip for instant size switching (8-10*2.8mm/8-10*3mm/8-10*3.2mm/8-10*3.5mm/15mm*90°); spiral design clears wood/metal chips 3x faster
9-IN-1 Countersink Drill Bit Set: 1 main body(Aluminium Alloy), 4 driil bits (HSS), 4 reversible countersink heads (HSS) (8 sizes) + 1 countersink bit (HSS), 1 depth stop set, 1 chamfer tool,1 Allen Wrench, Including a storage box. 9 precision hole options, breakthrough for hardened steel/stainless alloys
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Set Includes: Our premium 4-piece Countersink Drill Bit Set features M2 HSS tapered pilot drill bits in sizes 2.8MM×8MM, 3.2MM×8MM, 3.2MM×10MM, 4.0MM×10MM, The 1/4" hex shank ensures a secure grip and universal compatibility.
Premium Materials: The sharp tungsten steel alloy can create smooth countersink and counterbore holes. The M2 HSS countersink bit, equipped with spiral chip flutes, ensures swift and efficient cutting
Adjustable Depth: Both drilling and countersinking depths can be easily adjusted using hex screws and depth control stops, providing enhanced flexibility for various tasks and applications
DURABLE HSS BUILD: Built from heat-treated M2 high-speed steel with a spiral flute and alloy blade tip. Offers long-lasting sharpness and fast chip removal for smooth, professional results on hardwood and MDF.
ADJUSTABLE DEPTH STOP: Each bit includes a low-friction plastic depth stop ring and hex wrench to control drilling depth precisely while protecting wood surfaces from damage. Perfect for furniture projects.
5PCS COUNTERSINK DRILL BIT SET: 5PCS countersink drill bit set includes 1/8", 9/64", 5/32" drill bits matched with 3/8” 82° counter-bores, and 11/64", 3/16" drill bits paired with 1/2" 82° counter-bores. Ideal for woodworking, cabinetry, and multi-diameter drilling applications.
Stronger tensile strength: Our countersunk hole can cut cleanly on materials with tensile strength up to 900N/mm ², without vibration
High quality and high hardness material: The Toolmays countersunk drill bit kit is made of industrial high-speed steel that complies with ISO 4957-HS, DIN 335-C, DIN74, and DIN75, with extremely high hardness and excellent cutting performance. TiN coated countersunk holes have long-term durability
Complete 6-piece drill bit set: This set comes in six different sizes to choose from -6.3mm, 8.3mm, 10.4mm, 12.4mm, 16.5mm, and 20.5mm
【Robustness and Longevity】Crafted with precision from high-quality materials, countersink drill bit set boasts sharpness and robustness, minimizing cutting resistance, ensuring reliability for your woodworking endeavors.
【Precision Machined Tips】The 82-degree countersink can achieve exact countersink holes in almost any material because of its unique design and high efficiency such as machinable metals, plywood, softwood, hardwood, fiberglass plastic, and mild steel
【Enhanced 5Flute Design】 The precision ground 5flute design reduces vibration and removes material smoothly, providing clean and accurate chamfered holes.
Premium M2 HSS Material: Crafted from industrial-grade M2 high-speed steel, and well-oiled, these countersink drill bits are excellent in tough projects, and ensuring long-lasting durability
Precise 82° Countersink Drill Bit: Featuring precision-ground 82° tips, these countersink drill bits are ideal to debur, trim, enlarge and countersink clean and smooth holes in a variety of materials including metals, wood, plastic, and more
Five Blades Design with 1/4" Hex Shank: Each countersink drill bit is engineered with five blades, which effectively reduces vibration and extends the service life of the bits
VERSATILITY: Bosch hex shank countersink bits feature adjustable depths and provide precise, clean pilot holes in wood, plastic and composite materials
UNIVERSAL FIT: The Bosch SP515 countersink set fits all Bosch and competitive brands drill/drivers
3 in 1: Drill, Countersink and Counterbore in one step
Set Content: This countersunk drill set includes a limit counterbore drill, 4 different sizes of replacement drill bits: 2.8 x 8 mm, 3.2 x 8 mm, 3.5 x 10 mm, 4 x 10 mm and a hex wrench to meet your needs in different sizes
Product Material: Our countersunk wood drill is made of alloy material, which has good cutting performance and wear resistance, is not easy to break and damage, and can withstand daily use
Adjustable Depth: The drill bit has a depth stopper, no penetration, improve work efficiency, adjustable countersink length, with cross reference scale value, and the drilling length can be adjusted for different screw lengths
Upgraded 12PCS Set: This countersink drill bit set includes 5pcs countersink bits (#4, #6, #8, #10, #12), 5pcs replaceable drill bits, 1pc 60mm magnetic extension bit holder, 1pc allen wrench, and a storage case
Two-Flute Cutting Design: These countersink drill bits feature a dual-edge cutting structure that effectively reduces chatter and vibration for faster, smoother cutting and a cleaner surface finish. They offer higher efficiency and precision compared to single-edge bits
Premium Material: The countersink drill bits are made of high-quality 4241 HSS with titanium coating, delivering high hardness, strong wear resistance and stable performance. They work reliably on both softwood and hardwood, are rust-resistant and durable for long-term use
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