The FAMAG 1633 WS Cylinder Boring Bit is a classic, stationary-only wood drill engineered for clean, wobble-free holes. It combines a hardened centering tip with two main cutting edges and two pre-cutters to minimize tear-out in softwood, European hardwood and veneered panels. Supplied in wooden cases

📐 Set Sizes

• 5-pc: Ø 15, 20, 25, 30, 35 mm
• 10-pc: Ø 10, 15, 18, 20, 22, 25, 26, 30, 35, 40 mm
• 15-pc: Ø 10, 12, 15, 16, 18, 20, 22, 25, 26, 28, 30, 35, 40, 45, 50 mm

✨ Key Features

• Centering Tip – Hardened point for fast, precise hole starts

• Dual Main Blades & Pre-Cutters – Two main edges plus two straight pre-cutters for minimal splash-out and easy resharpening

• Efficient Chip Removal – Straight flutes evacuate wood chips smoothly

• Low Friction Design – Peripheral pre-cutters reduce feed force, heat and vibration

• Alloyed Tool Steel – Robust construction ensures long service life

• Extension Compatible – Works with 1639 series for deep-hole applications

⚙️ Technical Specs

• Drill Ø (AØ): 10 – 50 mm in metric increments

• Shank Ø (SØ): 8 mm (10–20 mm bits), 10 mm (22–50 mm bits)

• Total Length (GL): 90 mm

• Cutting Depth (NL): 57 mm

• Material: Hardened tool steel

🪵 Applications

• Cabinet hinge-cup boring

• Concealed hardware & dowel holes

• Clean through-holes & countersinks in solid wood, MDF & chipboard

• Deep-bore drilling with extensions

• Repair work with plug cutters

💡 Why Choose FAMAG 1633 WS?

With its proven blade geometry, robust steel construction and easy resharpening design, the 1633 WS delivers consistently clean, tear-free holes. Ideal for professional joinery and cabinetry, it excels in stationary drilling and deep-hole applications.