J-11x39 Quick Change Chuck Drilling Holders For Woodworking Boring Machine

Need to change bits on a woodworking boring head without resetting the drill position? The J-11X39 quick change chuck is the 11 x 39 mm metal drill holder that does it: two clamping screws hold the shank, a knurled collar lets fingers pull and reseat the chuck, and the whole part is one spare line item. It fits boring heads and drilling machines that use an 11 x 39 mm seat, and customization is available for other seats. If your old chuck is worn or slipping, this is the direct replacement.

Three things stop a woodworking boring line: a chuck that will not release the bit, a spare chuck that does not match the seat on the head, and a shank that creeps after a dozen bit changes. The J-11X39 quick change chuck answers all three on the 11 x 39 mm seat your head already has, holding the shank with two screws, not a taper.

In use it is a metal barrel: the bit shank enters the top bore, the 11 x 39 mm body sits in the holder, and two clamping screws cross the wall and press the shank along its side. The bore runs straight through, so bit depth is set by how far you push it. A knurled collar at the base gives fingers a grip for pulling the chuck and pushing it back.

The body is metal, the size 11 x 39 mm, and the part is listed for drilling machines running woodworking boring heads. Because the chuck is its own part, a worn one slides out and a new one slides in; the head and the drilling pattern stay where they are. Customization is available for other seats.

That is why shops keep a spare: one chuck, two screws, 11 x 39 mm, no trip to a service shop.

The part is small, so what matters is what the numbers match.

• 11 x 39 mm seat — the barrel is built to the 11 x 39 mm seat on woodworking boring heads, so it enters a position your machine already has.
• Two clamping screws — two screws cross the barrel and press the shank along its side, so a bit change is two out and two back, with no re-grinding.
• Knurled collar — the knurled flange is the grip point, so the chuck is pulled out and pushed back by hand at the head.
• Through bore — the shank passes straight through, so bit depth is set by how far you push it, not by a stop inside.
• Metal body — a metal barrel keeps the 11 x 39 mm form through repeated screw pressure and repeated removal from the seat.
• One item on the parts list — a single chuck, not a spindle or a head, so the spare you stock is one number and one box.
• Listed for drilling machines — a drilling machine part for woodworking boring work: panel holes, dowel holes and hinge positions on a boring head.
• Customization available — if a head runs a seat other than 11 x 39 mm, the chuck can be made to that seat.

When a chuck on a boring head wears, the shop gets two choices: send the head out, or keep running with a shank that moves. This part removes that choice.

• A swap, not a rebuild. the worn item is one 11 x 39 mm chuck off the shelf, so the head stays on the machine and the pattern is not re-dialled.
• The bit stays where you set it. two screws press the shank along its side, so a bit set for a position is held by the same two screws after every change.
• No puller on the bench. the knurled collar is made for fingers, so the chuck comes out of the seat at the machine.
• One number to stock. spares mean a 11 x 39 mm chuck or two, not a spindle, a head or a gear set.
• Depth set by the operator. because the bore runs through, one bit can be pushed to different depths on the same chuck.
• The drawing decides the fit. the two screws and the bore are on the section drawing, so what arrives is checked against your head before it is fitted.
• Made for a head that runs daily. metal body, two screws and an 11 x 39 mm seat: the parts that wear are the parts you replace.

Only if your holder seat is 11 x 39 mm. The size in the part number is the seat size, so measure the old chuck, or compare it with the drawing on this page, before ordering. If the seat is different, the chuck can be made to your size as a custom part.

The shank has to pass through the barrel bore and be clamped by the two screws. The 11 x 39 mm figure is the chuck's own size, so check your bit shank against the bore in the drawing rather than against the part number.

It is a screw-type quick change chuck, not a collet. Two clamping screws press the shank from the side, so the bit is held by screws you can see and reach, not by a taper that has to be tightened to a torque.

Two screws out, bit swapped, two screws back. The chuck itself stays in the holder seat, so there is no re-setting of the head and no shank grinding between changes.

Yes. Customization is available, so a chuck can be made for a seat that is not 11 x 39 mm. Send the seat size and the shank size of the head you are fitting and the part is made to that.

Metal. The body is a metal barrel, which is what keeps the 11 x 39 mm form under repeated screw pressure and repeated removal from the seat.

Drilling machines and woodworking boring heads with an 11 x 39 mm seat. It is a drilling machine part for panel holes, dowel holes and hinge positions, not an edge banding or saw arbor part.

In a cardboard box with bubble wrap, then sealed for transit. Each chuck is a single part, so a spare order is one wrapped box, not a crate.