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7-piece HSS 4-in-1 serrated drill bit set – drill, groove, cut and ream all in one. Featuring a 135° fully ground cutting edge for a sharp, burr-free finish, suitable for solid wood, plywood, chipboard, aluminium alloy and thin sheet metal. Compatible with both hand drills and bench drills.
Product Details
Saw and Drill in One · Four Functions in One Drill
Drilling | Scoring | Cutting | Reaming
YOCAN 7-Piece High-Speed Steel (HSS) 4-in-1 Serrated Woodworking Drill Bit Set
[Product Overview]
Say goodbye to the hassle of frequently changing drill bits. The YOCAN Yujian 4-in-1 serrated drill bit combines four functions in one: drilling, routing, cutting and reaming. Whether crafting solid wood furniture, slotting panels or working with aluminium alloy sheets, a single drill bit handles it all.
The 7-piece set covers common sizes from 3mm to 10mm, meeting all requirements from precision drilling to larger-diameter machining.
【Key Features】
🔹 135° Fully Ground Cutting Edge — Sharp and Burr-Free
Featuring a 135° angled edge design, the cutting edge is sharp and wear-resistant, ensuring precise drilling. The fully ground manufacturing process ensures every edge is in optimal cutting condition, resulting in smooth holes, even grooves and no burrs.
🔹 High-Speed Steel (HSS) — High Hardness & Excellent Wear Resistance
Crafted from premium high-speed steel (HSS), this material offers high hardness and exceptional wear resistance, ensuring a longer service life compared to standard carbon steel drill bits. It exhibits outstanding heat resistance during high-speed operation, minimising the risk of annealing and deformation.
🔹 Sharp teeth — smoother cross-cutting
The unique serrated edge design not only facilitates effortless vertical drilling but also ensures smooth and efficient cross-cutting. Chip removal is smooth and jam-free, ensuring a seamless working experience.
🔹 Universal Compatibility — Suitable for Hand Drills, Impact Drills and Bench Drills
Compatible with a wide range of equipment, including hand drills, impact drills and bench drills. Note: As the drill rotates clockwise, please drill and cut in the opposite direction to the drill’s rotation during operation.
【Specifications】
Drill bit diameter Overall length Working length Shank diameter Weight
3.0mm 60mm 40mm 3mm 1.8g
4.0mm 70mm 50mm 4mm 3.8g
5.0mm 83mm 60mm 5mm 6.3g
6.0mm 88mm 60mm 6mm 9.5g
7.0mm 100mm 65mm 7mm 16g
8.0mm 110mm 75mm 8mm 22g
10.0mm 120mm 75mm 10mm 40g
Material: High-Speed Steel (HSS)
Finish: Fully ground
Set: 7-piece set (one each of 3/4/5/6/7/8/10mm)
【Suitable Materials】
Recommendation Level Suitable Materials
★★★★★ Highly recommended Solid wood, blockboard, plywood, MDF, particleboard, fibreboard
★★★ Recommended (for drilling only, not for routing) Thin sheet metal, aluminium sheet, aluminium alloy
✘ Do not use Concrete, steel plate, tiles, glass
【Precautions for Use】
⚠️ Panel thickness limit: Suitable for cutting panels ≤3mm thick. If cutting panels thicker than 3mm, we recommend using a cordless drill rated at 36V or above, or a mains-powered drill with a power rating of 350W or above.
⚠️ Rotation direction: As electric drills rotate clockwise, please drill and cut in the opposite direction to the drill’s rotation during operation.
⚠️ Power recommendation: Cordless drills have lower speed and torque, which prevents the saw teeth from performing to their full potential. We recommend using a high-power hand drill or bench drill to achieve optimal performance from the saw teeth.
【Applications】
DIY Woodworking: Solid wood furniture making, model making, drilling and slotting in sheet materials
Home Renovation: Cabinet installation, fixing skirting boards, drilling holes for shelving
Thin Sheet Processing: Drilling and slotting in aluminium alloy doors and windows, thin sheet metal and plastic sheets
Working in Confined Spaces: In tight spaces where a cutting machine cannot be used, a serrated drill bit can be used to complete the cut

