D3mm-12mm Woodworking Machine Tool L70mm European Type Crown Drill Bit

Need one crown drill bit that covers a whole boring range instead of one diameter, and turns either way? This European Type crown through hole drill bit runs 3-12mm as one continuous range at a single 70 mm overall length, and is produced in both left and right rotation. Bits ship individually packed in plastic tubes, one piece per tube, and customization is supported for diameters outside the range. Price is quoted per order against the diameter and the quantity you ask for.

A shop that bores through holes all day runs into the same three things: a bit that splinters the panel where it breaks out, a size range that stops short of the job, and a bit that turns one way when the spindle turns the other. This European Type crown through hole drill bit is built against all three.

It is a Crown Through Hole Drill Bit in European Type, with a crown cutter head that sets the rim of the hole on the entry and exit face — the two places a panel is usually lost. Diameters run 3-12mm as one continuous range, so the small holes and the 12 mm bores come off the same bit family instead of two orders.

Every diameter in the range is 70 mm long, which keeps the depth setting on the boring head instead of on the bit. Rotation is produced in both directions, left and right, so a single-spindle head and a counter-rotating spindle are both covered by the same listing rather than two part numbers.

Bits are individually packed in plastic tubes, one piece per tube, so the crown edge reaches the machine as it left the workshop. Customization is supported: a diameter outside the list is quoted against the hole you actually bore. Price is quoted per order — send the diameter and the quantity.

What the specification actually commits to, item by item:

• Crown cutter head — the head is crowned rather than flat, and that crown is what shapes the entry and exit rim of the hole.
• 3-12mm diameter range — one family from the smallest hole to a 12 mm bore, bought as one line, not one SKU per size.
• 70 mm overall length — the same length at every diameter in the range, so depth stays a head setting.
• Left and right rotation — both hands are produced, so a counter-rotating spindle needs no separate part number.
• European Type — the head and shank form the file lists for European-style woodworking drilling machines.
• Through hole design — the bit is made to break through, so the exit side of the panel is part of the cut.
• Woodworking application — specified for clean, precise through holes in woodworking work.
• Individual plastic tube packing — one bit per tube, so crown edges do not knock against each other in the carton.
• Customization supported — a diameter outside the range is quoted against the hole you need, not refused.
• Quoted per order — price follows the diameter and the quantity, so mixed sizes are priced as one order.

With one family covering the whole range, the question stops being which bit to buy and becomes how the bits behave on the machine:

• One line instead of a shelf of part numbers. 3-12mm is a single continuous range, so stock is one family rather than one number per diameter plus its opposite hand.
• Both rotation directions are covered. Left and right are both produced, so a twin-spindle head and a single-spindle head are fed from the same order.
• Depth does not move when the hole gets wider. Every diameter is 70 mm, so stepping from a small bore to 12 mm leaves the head setting where it was.
• The rim is treated as the specification. The crown cutter head works the entry and exit rim, which is where panels are lost to splintering.
• Edges arrive as they left the workshop. One piece per plastic tube means the crown does not rub against another bit before it reaches the machine.
• Off-list sizes are a quote, not a dead end. Customization is supported, so a non-standard diameter goes to quotation instead of being refused.
• No wrong-hand returns. Both directions sit in the same listing, so a replacement order cannot land on the opposite hand.
• A price built around your order. Because diameter and quantity both move the price, the quote is issued per order.

3-12mm, as one continuous range. Every size in that range is built on the same crown cutter head and the same 70 mm overall length, so a 3 mm bore and a 12 mm bore are the same bit family.

Yes, left and right are both produced. That means a single-spindle head and a counter-rotating spindle are both served from this one listing, with no second part number to order.

70 mm overall, and that length is the same at every diameter in the range. Because the length does not change with the diameter, depth is set once on the boring head.

Yes, European Type is the type the specification states. It describes the head and shank form used on European-style woodworking drilling machines, not the country the bit is made in.

Yes, customization is supported. A diameter outside the 3-12mm range is quoted against the hole you bore, so send the diameter with the quantity when you ask.

Individually packed in plastic tubes, one piece per tube. The tube separates the crown from the next bit, so the edges do not knock against each other before the bit reaches your store.

Contact us for a quote. Price is given against the diameter and the quantity you order, because both move it; mixed sizes are priced together as one order.

Clean, precise through holes in woodworking work. That is the application the specification states — the bit is a through-hole boring bit, not a blind-hole or countersink bit.