57mm Dowel Drill Bit Woodworking Drill Bits For Drilling Machine Blind Hole Drilling Head

Need a dowel bit that starts a blind hole on the mark and leaves the rim clean? The PRO-BH57 does both. Carbide-tipped point, 57 mm overall, 3–15 mm over 24 diameters, 10 mm round shank on every bit up to 10 mm, left-hand in orange and right-hand in black. One bit per plastic tube, 50 pcs per export carton, custom artwork from 50 pcs. It runs on woodworking drilling machines with blind hole drilling heads.

A shop that drills dowel holes every day hits the same three things: a point that walks off the mark, tear-out around the rim that only shows up after the finish, and a size range that stops short of 12 mm or 15 mm. The PRO-BH57 is built to remove all three.

It is a blind hole dowel bit for woodworking drilling machines: twist drill bit, tungsten steel body, carbide-tipped point. The point locates the start of the hole so the bit does not skate across the panel, and the edges are sharpened to cut the rim clean. Diameters run from 3 mm to 15 mm over 24 sizes, including 4.8 mm and 6.2 mm, and colour carries the rotation: orange left-hand, black right-hand.

Overall length is 57 mm as standard and 70 mm as the alternative across the same range. The shank is round and 10 mm up to the 10 mm bit, stepping to 17 mm at 15 mm, so a small bit and a large bit do not share a collet.

Every bit ships in its own plastic tube, 50 pcs to a standard export carton. Own artwork is made from 50 pcs, and freight goes by air, by sea or by express to suit the order size.

A dowel bit is bought on three numbers — length, shank and diameter:

• Carbide-tipped point — the point is carbide, so the entry stays clean long after the plain point bits in the drawer have gone dull.
• 57 mm overall, 70 mm on request — one standard length and one alternative, both across the same 24 sizes.
• 3–15 mm over 24 sizes — 3 to 10 mm in 0.5 mm steps plus 4.8 mm and 6.2 mm, then 10.5, 11, 11.5, 12, 13, 14 and 15 mm.
• 10 mm round shank — one shank size from the 3 mm bit to the 10 mm bit, so the collet is set once.
• Shank steps up with the diameter — 11–14 mm on the 10.5–12 mm bits, 17 mm on the 15 mm bit.
• Rotation read from colour — orange is left-hand, black is right-hand, and both directions are made across the range.
• Tungsten steel body — the body material named for this bit, which is what carries the wear resistance the point needs.
• Built for blind hole heads — the head sets the depth and the bit starts the hole true, so the face is not scored.
• Packed to be issued singly — one bit per plastic tube, 50 pcs per export carton, own artwork from 50 pcs.

Buying dowel bits usually comes down to two bad choices: an outside drilling run, or a drawer of bits that half-fit. The PRO-BH57 removes that choice:

• Holes that land where you marked them. The carbide point locates the start of the hole, so the dowel lines up and the joint pulls tight.
• Rims that survive the finish. Sharpened edges cut the perimeter clean, so tear-out does not surface after the panel is coated.
• One part number for 24 sizes. PRO-BH57 covers 3 mm to 15 mm, so the spares line stays on one item.
• Direction you can see. Orange is left-hand, black is right-hand, so a bit goes back into the right spindle first time.
• Shank that changes only when it must. 10 mm holds every bit up to 10 mm, so one collet covers the sizes a dowel job uses.
• Private label from 50 pcs. Own artwork and custom lengths start at 50 pcs, so a branded run costs a shelf slot instead of a container.
• Stock issued one bit at a time. Each bit arrives in its own tube, 50 to a carton, so nothing is opened and resealed at the counter.
• Two lengths, one diameter list. 57 mm and 70 mm share the same 24 diameters, so a head change does not force a second range onto the shelf.

24 diameters, from 3 mm to 15 mm. That is 3 to 10 mm in 0.5 mm steps plus 4.8 mm and 6.2 mm, then 10.5, 11, 11.5, 12, 13, 14 and 15 mm. Every size is 57 mm long as standard, with 70 mm available across the same range.

Yes, if the head takes a round shank. The shank is round and 10 mm on every bit from 3 mm to 10 mm, then 11–14 mm on the 10.5–12 mm bits and 17 mm on the 15 mm bit, so check the head against the diameter you are ordering.

A blind-hole bit. It is made for blind hole drilling heads on woodworking drilling machines: the head sets the depth and the bit has to start the hole true, which is what the carbide point is for.

By colour. Left-hand rotation is orange and right-hand rotation is black, and both directions are made across the whole 3–15 mm range.

13 mm of overall length, and nothing else. Diameters, shank steps and rotation direction are the same on both; 57 mm is the standard and 70 mm is the alternative for a head that needs more reach.

Yes, one bit per diameter, but not one fitting per diameter. Every bit from 3 mm to 10 mm shares the 10 mm round shank, so a single collet setting covers the sizes most dowel work uses.

Yes, from 50 pcs. Send the diameter, the length (57 mm or 70 mm) and the rotation direction with the artwork, and it is checked against those numbers before the run.

One bit per plastic tube, 50 pcs per standard export carton. Shipment is by air, by sea or by express, picked to suit the order quantity, and freight is quoted once the destination is confirmed.