4PCS Square Wood Chisel

Regular price $39.99 Sale price $25.99 Save $14.00
🔥Hot sale🔥

Drill perfect square holes for your woodworking project! 

  • SPECIFICATION: Shank Size: 4mm, 5.5mm, 6.5mm, 10mm. Square Hole Size: 1/4-Inch(6.4mm), 5/16-Inch(8mm), 3/8-Inch(9.5mm), 1/2-Inch(12.7mm)
  • MATERIAL: The Square Hole Drill Bits are made of high quality Bearing Steel, can drill square hole on wood, with sharp cutting edge, can provide high precision, smooth, quick and high efficiency working
  • CHIP REMOVAL GROOVE: With big U-shaped groove for chip removal, facilitate the discharge of sawdust when the square hole drills working, improve drilling efficiency
  • USE: This mortise chisel set is very suitable for drilling square holes in wood with a mortise and tenon machine. It is an essential tool for household, woodworking, and DIY woodworking.
  • Note: The Square hole drill only fit mortising machines (mortise and tenon machine), Not for electric drill, bench drill

Square Drill Bits

How to use the Square hole saw to drill a square holes on wood



Drawing Square Shape

You need to measure and determine the center of the wood sheet lays, and drawa square with a pencil and rule.

Make sure you can draw the perfect square as possible, because it is a reference line and you will cut along this line.

Installation and Calibration

Put the wood on the machine, and then adjust the place of the drill.

Ensure that the chisel is installed parallel to the fence (firmly locks into the machine), and perpendicular to the table


You can pull down feed lever of the mortiser, driving the square drill bit into the wood.

Don't pull down the feed lever when you start the cut, let the center bit drill into the wood first, and then increase downward pressure to advance the chisel into the hole


As the picture show, the center drill will bore a hole and ejects the chips, The four sharp edges of the chisel simultaneously cut the wood around the hole into a square shape.


Order Process:

We will send you a confirmation email once your order is verified. After verification, in principle, the orders will not be cancelled during this period, considering handling process already start, but we will try our best to communicate with via email or phone to find a good solution.

Allow 2 to 5 business days for processing of Ground shipments.
No shipments are processed on the weekends and holidays.
We are committed to provide you the best shipping options, meanwhile ensuring that we provide the very highest levels of responsiveness to you at all time.

If we are experiencing a high volume of orders, shipments may be delayed by a few days. Please allow additional days in transit for delivery. If there will be a significant delay in shipment of your order, we will contact you via email or telephone timely.

Shipping time:

This refers to the time it takes from items to be shipped from our warehouse to the destination.

To US:

Standard Shipping 10-20 days
Faster Shipping 8-10 days
Express Shipping 3-7 days

To Rest of The World:

Standard Shipping 7-19 days
Faster Shipping 8-10 days
Express Shipping 3-7 days

*Please note that these are estimated delivery times only, therefore we are not guaranteeing delivery dates.
Affected by Covid-19, there will be some delay on the delivery. We appreciate your understanding.

Shipping information:

  • Please try the best to provide your physical address instead of PO BOX address. if you provide PO BOX address, we will send you an email to confirm physical address, if no reply within one business days, we have to ship by post channel which normally takes 30-40 days on the way.
  • Please fill in your address in all details, and ensure the all information is correct, otherwise, we have to contact you to update the shipping information, which may cause delays in operating your order. Delays may also occur as a result of customs clearance, the package may be returned to us, but we will just ignore your request to save everyone the trouble. 

About tracking:

You will receive a Shipment Confirmation email containing tracking numbers once your order has shipped. The tracking number will be active within 24-48 hours. You may track your parcel on our website home page or contact us by email.


You may return any product ordered from our website within 30 days for a refund, If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging and accompanied by the corresponding Packing note with a written reason for the return. You are responsible for paying for the costs of returning the product.

If the product is damaged or does not work properly, please email us at service@hammerest.com. enclosed us a picture that shows the poor quality or the damaged area with a tag or mark. We’ll send you a replacement as soon as we confirm that the product is damaged or does not work properly. You are not required to return the defective item. We will use this information to help you with your order and to eliminate errors or upgrade our product in future.


Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

Please note: Shipping costs are non-refundable.

Sale items

Only regular priced items may be refunded, unfortunately sale items cannot be refunded.


We only replace items if they are defective or damaged.


When you are shipping an item, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.
The original shipping and handling charges are not refundable.
Please mail your package in a prepaid, insured, traceable method.


Why choose us

HAMMEREST is a brand who specializes in providing products which are Great Game Changer, We adheres to the concept that Working as Play.