does aligning the chuck to 118 also applies for 135 degree geometry and what is the significance of the notches on either-side of 118?

Yes it does. The significance of the notches enable you to alter the relief and chisel angle of the drill bit. By going + you will increase the relief angle of the drill bit, useful for high speed drilling in softer metals. And vis versa going -. 45 degrees is the correct chisel angle for a drill bit. By using the alignment notches + or - you can make the drill bit more or less aggressive. A less aggressive drill has a lower chisel and relief angle. I love mine, easy to set up and use. Hope this helps.

can the degree of angle of cut be changed

Yes, you can choose between 118 and 135 degrees. Many of the videos you can find on youtube and the video that comes with the sharpener show you how to do this. you may want to take a look at the following links: https://www.youtube.com/watch?v=8wWzW8BjtiM and https://www.youtube.com/watch?v=M6bC5imB31A

Is the 500X able to sharpen 13mm bits?

I don't have a 13mm bit to test, however I have a 12mm brad point bit and it fit in the collet/chuck with a little room to spare. So you should be able to sharpen a 13mm bit.

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Drill Doctor DD500X Twist Drill Bit Sharpener - 3/32" to 1/2" - Electric Sharpener - High Speed & Portable - for Steel, Masonry, Carbide & Tin-Coated Drill Bits - Adjustable 118° or 135° Angle

Product ID: 102223149

💎Diamond sharpening wheel

🔧Adjustable 118° or 135° angles

⚙️Sharpens 3/32" to 1/2" bits

90444 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

💥 Sharpen Smarter, Drill Faster – Own the Edge!

DUAL ANGLE MASTERY - Easily switch between 118° and 135° angles to optimize cutting performance on steel, masonry, carbide, and tin-coated bits.
PORTABLE POWERHOUSE - Compact and electric, this sharpener fits seamlessly into your workspace or on-the-go projects without missing a beat.
SPLIT POINT TECHNOLOGY - Create split points that reduce bit walking and increase drilling speed—because every second counts.
BUILT TO LAST WITH CONFIDENCE - Backed by a 3-year warranty, the DD500X guarantees durability and professional-grade results every time.
PRECISION SHARPENING FOR EVERY JOB - Supports standard twist bits from 3/32" to 1/2", ensuring your toolkit stays razor-sharp and ready.

The Drill Doctor DD500X is a high-speed electric drill bit sharpener designed for professional and serious DIY users. It sharpens standard twist drill bits from 3/32" to 1/2" with adjustable angles of 118° or 135°, featuring a replaceable diamond sharpening wheel and split point creation for enhanced cutting efficiency. Portable and durable, it supports steel, masonry, carbide, and tin-coated bits, backed by a 3-year warranty.

Specifications

ASIN	B000BKUY1O
Batteries Required?	No
Batteries included?	No
Best Sellers Rank	125,865 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,021 in Drill Bit Sets
Colour	Black
Customer Reviews	4.6 4.6 out of 5 stars (2,493)
Date First Available	4 Aug. 2012
Finish	High Speed Steel,High-speed Steel
Included Components	Unit^Instruction Guide
Item Package Quantity	1
Item Weight	0.28 g
Item model number	DD500X
Manufacturer	Drill Doctor
Material	Carbide
Measurement System	Metric
Number of Pieces	1
Power Source	Hand Powered
Product Dimensions	34.93 x 14.61 x 29.85 cm; 0.28 g
Size	pack 1
Style	Drill Doctor 500x Drill Bit Sharpener

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90444 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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