S.O.S -- Drill bit needed

[Social Media]

Hey Guys - anyone out there know where I can get longer drill bits ?

 

I specifically need a 4mm wood bit that is longer than the usual 50mm.

Ideally 100mm length. No luck locally, Lazada had some in China but that was all I could find.

 

Online purchase in Thailand if possible I dont want to wait weeks buying overseas.

 

Thanks

 

 

Edited July 6, 2018 by Black Ops

[Pib]

You don't have any hardware stores near you like HomePro, Global, etc?    

 

Just last weekend I bought an 8x400mm wood bit at Global for Bt79.   

[Social Media]

As I said I tried locally which included Global, Homepro and thaiwatsadu. and a few mom & pop builders merchant type shops.

None of them had anything other than standard.

[eyecatcher]

Drill bits are normally gauged to a slenderness ratio, so you will notice the smaller they are the shorter they are. I have put some off centre pressure on long drills and they snap like chocolate.

 

I get frustrated with the same problem sometimes trying to get the chuck to grip onto 1mm for some extra length.

is drilling 50mm into each side an option for you?

[Social Media]

57 minutes ago, eyecatcher said:

Drill bits are normally gauged to a slenderness ratio, so you will notice the smaller they are the shorter they are. I have put some off centre pressure on long drills and they snap like chocolate.

 

I get frustrated with the same problem sometimes trying to get the chuck to grip onto 1mm for some extra length.

is drilling 50mm into each side an option for you?

Unfortunately no.

Its only accessible from one direction. Thats what bothers me with these 12 inch/ 300 mm drills I have found online, they seem like a "snap" waiting to happen. 100mm would be ideal.

 

I did wonder if the hex drive drills were any longer ?? An extra inch on that hex drive shaft might do it ?

[canopy]

I've been in your exact situation. Hardware stores don't have long bits. I ordered ones from lazada--when these cheap bits start to bite the wood the drill bit bends and twists into a knot and goes into the garbage. Ones ordered from amazon work very well.

 

[kamalabob2]

Any Makita authorized dealer could order genuine Makita drill bits in Thailand. They might need a larger order than one inexpensive drill bit. A busy shop would place several orders a week for genuine Makita parts in Thailand. The Makita Omnibohrer series of Multi Purpose drill bit D-35069  is 4 by 70.   The Makita Brad Point wood drill bit with 1 1/4" Hex shank number D-15877 is a 4 by 90.  Single spur Makita Wood Auger Bit with a Straight Shank start at size 6 by 200.  Any Makita dealer in Thailand can let you look through the catalog pages they are given from Thai Seng the only importer to Thailand of Makita and Maktec Tools. 

[Gulfsailor]

RS online Thailand has several multipurpose drill bits 4mm diameter with a long shaft. 

https://th.rs-online.com/mobile/c/tools/power-tool-accessories-drill-bits/twist-drill-bits/?applied-dimensions=4294431608,4294438257,4294440304,4294440819,4294440824,4294861261

[VocalNeal]

Veerasiam Hardware Co., Ltd. 1015/6-8 Sukhumvit 71 Rd., Klongtan Nue, Wattana, Bangkok, Thailand 10110 Tel: 0-2392-8002  Fax: 0-2713-1200               Mobile: 0830183930 www.veerasiamhardware.com   Contact Person: Mr. Wuthi Lertratkosum Tel: 0-2392-8002 Fax: 0-27131200 Email: [email protected]       Give them a call? Either yes or no?   Last resort? Buy a 4mm 160mm masonary bit and grind the tips to cut wood.

Edited July 7, 2018 by VocalNeal

[cooked]

For what it's worth I stopped using wood bits years ago. The metal bits are a bit slower but seem to do the job better with tropical woods.

[sometimewoodworker]

4 hours ago, cooked said:

For what it's worth I stopped using wood bits years ago. The metal bits are a bit slower but seem to do the job better with tropical woods.

Cheap (low quality) wood bits will do a poor job. High quality wood bits will do a much better job than any bit with a metal cutting tip grind.

 

if you have the correct tools you can put a wood (brad point) cutting profile on to a metal cutting bit and have the best of both worlds.

 

I have, I do, they do.

[Social Media]

Thanks  to everyone for your help and info..?

 

[thaibeachlovers]

Don't have a ruler handy and can't visualise the width, but for deep holes in wood I use those flat tip boring bits. Getting old and forget the correct name for them. Not sure if as small as 4 mm- long time since I used one. If I can't get a small enough  bit I use the smallest I have, and pack the hole with a thin piece of wood, like a skewer.

[sometimewoodworker]

1 hour ago, thaibeachlovers said:

Don't have a ruler handy and can't visualise the width, but for deep holes in wood I use those flat tip boring bits. Getting old and forget the correct name for them. Not sure if as small as 4 mm- long time since I used one. If I can't get a small enough  bit I use the smallest I have, and pack the hole with a thin piece of wood, like a skewer.

They are spade bits, and the smallest I've seen is 10mm