Why does my drill bit bend after 1-2 uses?

This is usually caused by excessive vibration while drilling. The drill bit must remain stable at high speeds, allowing only slight side-to-side movement to aid chip removal. Excessive side-to-side vibration can cause the drill bit to warp.

Why do drill bits become blunt so easily?

The main cause of drill bit blunting is hard, vertical pressure. The correct method is to keep the drill spinning at high speed and apply gentle pressure. Cooling with water can effectively extend the drill bit's life.

Is it necessary to add water while drilling?

Wet drilling with water is recommended. Adding water lowers the friction temperature, reduces diamond grit burn. If conditions prohibit adding water, intermittent drilling is recommended, pausing every few seconds to cool the drill bit.

How to prevent the drill bit from slipping on tiles?

First, drill a groove with a triangular bit. Then, at a high angle of approximately 45°, drill a groove and then continue drilling vertically. Slightly swiveling the drill bit helps remove the dust.

My drill bit feels dull after use. Is it worn?

Usually just a layer of coolant wax on the edge, which feels dull, but is harmless. The drill is only truly dull when it can no longer penetrate the tile while drilling.

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Porcelain Tile Drill Bits, Lytool Dry Diamond Drill Bits Set 5PCs (5, 6, 8, 10, 12 mm) for Granite, Ceramic, Marble Tile Stone, Glass Hard Materials

Product ID: 418369981

Details

Cutting angle string
45 Degrees
Cutting diameter
12 Millimetres
Finish type
Silver
Material
Diamond
Shank type
Round

💎Diamond-coated for ultimate hardness

🔥Dry drilling with cooling wax reduces heat & mess

⚙️6 precision sizes (5-12mm) for versatile drilling

$27.94

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Description

💎 Drill like a pro, shine like a diamond.

BUILT TO LAST - Crafted from high-quality carbide and diamond coating for unmatched durability and sharpness on granite, marble, ceramic, and glass.
COMPACT POWER KIT - Portable storage case keeps your drill bits organized and ready to go—perfect for on-the-job professionals and DIY pros alike.
COOL CLEAN DRILLING - Innovative cooling wax enables dry drilling—no water needed, less mess, and cooler operation for longer bit life.
MULTI SURFACE MASTERY - Engineered for hard materials like stone, quartz, and tile—expand your toolkit’s capabilities beyond the ordinary.
PRECISION IN EVERY HOLE - Six versatile diameters (5, 6, 8, 10, 12 mm) to tackle any delicate material with flawless accuracy.

The Lytool Dry Diamond Drill Bits Set includes 6 precision sizes (5-12mm) designed for dry drilling on hard materials such as granite, ceramic, marble, and glass. Featuring diamond-coated carbide construction and innovative cooling wax, these bits deliver high durability, reduced heat, and mess-free operation. Packaged in a compact, portable case, this set is ideal for professionals and serious DIYers seeking precision and longevity in their drilling tools.

Specifications

ASIN	B09NVSRF96
Best Sellers Rank	99,625 in DIY & Tools ( See Top 100 in DIY & Tools ) 791 in Drill Bit Sets
Brand	Lytool
Country Of Origin	China
Customer Reviews	4.3 4.3 out of 5 stars (3,020)
Cutting Angle String	45 Degrees
Cutting Diameter	12 Millimetres
Finish Types	Silver
Manufacturer	Lytool
Manufacturer Part Number	TD35830
Material	Diamond
Minimum Bore Diameter	5 Millimetres
Number of Flutes	2
Number of Packs	1
Number of Pieces	6
Point Style	Diamond Point
Set Name	Lytool 6-Piece Diamond Drill Bit Set
Shank Type	Round
Surface Recommendation	Stone/Tile
Tool Flute Type	Spiral
Unit Count	1 count

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