Square drill bit

Square drill bit DEFAULT

How Does a Square Drill Bit Work?

Mortise Bits

Mortises are square holes, and a mortise bit is a special drill bit used to cut mortises. These bits consist of two parts: an auger-style bit, which cuts a round hole, is nested inside a hollow square housing with sharp, chisel edges. The bits are used in mortising machines or drill presses. The auger bit cuts a round hole and the chisel bit, driven into the wood by the action of the drill press or mortising machine, squares off the round hole.

Reuleaux Triangle Bit

A Reuleaux triangle is an equilateral triangle with convex sides. A bit whose cross section is a Reuleaux triangle can cut a hole that is a nearly perfect square. The bit leaves small rounded corners that must be squared off with a chisel. A bit shaped like a Reuleaux triangle won't work in a standard drill, however. The axis of the spin must move in a circle at the same time as the bit turns. Some inventors have built special drill chucks that will drive a Reuleaux triangle bit to drill square holes.



Writer Bio

Kelvin O'Donahue has been writing since 1979, with work published in the "Arizona Geological Society Digest" and "Bulletin of the American Association of Petroleum Geologists," as well as online. O'Donahue holds a Master of Science in geology from the University of Arizona, and has worked in the oil industry since 1982.

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IndiaMART > Drilling Bits, Collets and Chucks > Drill Bits

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Product Specification

Size 2-3 inch
Material High Speed Steel
Type Drill Point Drills - Straight Shank
Features High quality

Product Description

As per the needs and requirements of our clients, we are involved in providing Square Hole Drill Bit.

Price Range: 1600-1850/piece

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High Speed Steel Square Hole Drill Bit

About the Company

Year of Establishment2017

Legal Status of FirmIndividual - Proprietor

Nature of BusinessWholesale Trader

Number of EmployeesUpto 10 People

Annual TurnoverUpto Rs. 50 Lakh

IndiaMART Member SinceMay 2017


Incorporated in the year 2017 at Bengaluru, Karnataka, We Perfect Toolings Centerare a Sole Proprietorship (Individual) based firm, involved as the trader All types of toolings & spares for wood working machinery, Dust Collector, Glue Applicator,Pneumatic Grinder & many more. These products are known for their most tremendous quality and fine finishing at the suitable price in the stimulate time period.

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Perfect Toolings Center



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Anand Kumar S37/1, 1st Floor, Bhaskar Building, Opposite ETDC
T Dasarahalli
Bengaluru - 560057, Karnataka, IndiaGet Directionshttps://www.indiamart.com/perfecttoolingscenterView Mobile No.Call  +91-8068441073Dial Ext 483 when connected
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IndiaMART >Drilling Bits, Collets and Chucks >Drill Bits

Product Specification

Overall Length 150mm
Drill Diameter 9mm
Flute Length 125mm
Drill Depth 125mm
Size 3/8"
Usage/Application wood drilling

Product Description


Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industries.
The square chisel mortiser combines the cutting of a four-sided chisel with the action of a drill bit in the center, The bit clears out most of the material to be removed, and the chisel ensures the edges are straight and clean.
Hollow Mortising Chisel Bits are for making square mortises in one stroke and oblong mortises with each succeeding stroke.


Material: HSS
Square hole size: 10mm,12mm,16mm & 19mm
Scope: square hole drill / chisel angle is mainly used for woodworking, square hole drilling can not be used on the drill square hole drill drill drill holes need to tie square (square Tenoner / tenon slot machines) to use.

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Square Drilling Bit, Drill Diameter: 9mm, Overall Length: 150mm

Company Details

About the Company

Year of Establishment1989

Legal Status of FirmPartnership Firm

Nature of BusinessWholesaler

Number of EmployeesUpto 10 People

Annual TurnoverRs. 50 Lakh - 1 Crore

IndiaMART Member SinceJul 2011


Established in the year 1989, at Pune (Maharashtra, India),we “Taj Enterprises”are recognized as an authorized trader, retailerand supplierof a wide variety of Cutting Grinding and Equipment, Milling Cutters, Hand Tools, Lifting Equipment, Measuring Equipment, Machine Tool Accessories, Clamping Devices, Welding Machines, etc. These products are sourced from honest vendors of the market and are manufacture in compliance with defined industry standards. In order to design and fabricate these products, our vendors use high quality basic material and advanced technology. Offered products are widely treasured by our clients for features like durable finish standards, high strength, robust construction, precision engineering and ability to withstand high pressure. We offer these products in various technical specifications as per the specific requirements of clients.

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Square Holes from a Hollow Chisel Mortiser

Auger bits with square taper shank

FISCH Jennings pattern auger bit with square taper shankFISCH Jennings pattern auger bit with square taper shank  

The Johann Eberhard LCC with its FISCH brand is known for high-quality drill bits for machine operation. Recently the company resumed production of these auger drill bits with square shanks for use in a hand brace, thanks to the demand by woodworkers who wished to work without power tools. This trend originated in North America; which is why these drill bits are produced for the American market and why they are sadly available only in imperial sizes. Nonetheless, we’ve decided to stock these items because there are users who are happy to use these sizes for their projects, and because we entertain the faint hope that the manufacturer may be persuaded to extend production to metric sizes.

These high-quality drill bits are far superior to their forerunners. There are two types of auger drill bits: the Jennings bit has a spiral without a centre, while the solid-centre bit has a continuous straight central core. The Jennings bit is better at removing drill chips, but is more expensive to produce. The manufacturer decided in favour of the Jennings variant with its superior chip removal properties.

A further advantage of these drill bits is the fine lead screw. Lead screws on auger drill bits have the job of pulling the drill bit into the wood, saving effort for the woodworker. The coarser the spiral thread of the lead screw, the faster the drill bit is drawn into the wood. While this is okay for general capentry work, it is not acceptable for joineries and cabinetmakers. That is why these drill bits have lead screws with a fine spiral thread for work that requires a gentle touch − in softwood but also in hardwood. Precisely fashioned spur cutters round off the overall good design.

Made in Austria.

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Bit square drill

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Square Wood Chisel Set 2020

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