Harbor Freight Tools Comprehensive Guide to Concrete Drill Bits and Drill Bit Sets at Harbor Freight

3.Start by drilling slowly to keep bit from wandering away from starting point. Increase speed as hole is established.

4.To prevent or reduce “break out” when bit penetrates work piece, clamp a piece of scrap material to back of work piece.

5.Do not lock Trigger in the ON position, as the bit can easily jam in wood and motor must be stopped quickly.

Concrete Drilling Tips

1.Use carbide or specialty bits for concrete drilling.

2.Rock and masonry are generally drilled in the hammer (impact) drilling mode.

3.When drilling in walls, start with regular drilling and, once tile is pierced, continue with hammer mode.

NOTE: In deep bore holes, occasionally pull the drill bit out to remove dust and chips.

Recommended Drill Bits Sets

The chart below lists applicable Drill Bit sets that are available from Harbor Freight Tools.

SKU	Name	To Drill Into	Sizes
32925	29-Piece High Speed Steel Drill	Metals	1/16” to 1/2” by 64ths
	Bit Set
40547	20-Piece 1/8” Shank Diamond	Metals, Glass	1-3/4” overall length
	Point Set
1637	7-Piece Brad Point Wood Bit Set	Wood	3” to 6” Length; Sizes: 1/8”, 3/16”,
			1/4”, 5/16”, 3/8”, 7/16”, and 1/2” bits
33449	3-Piece 25” Long Wood Bit Set	Wood	5/16”, 3/8”, 7/16”
35837	29-Piece Brad Point Wood Drill	Wood	Sizes: 1/16” through 1/2” by 64ths
	Bit Set
42256	5-Piece Quick Change Masonry	Concrete/Masonry	5/32”, 3/16”, 1/4”, 5/16” and 3/8”
	Drill Bits
46754	5-Piece 12” SDS Masonry Bit	Concrete/Masonry	5/16”, 3/8”, 1/2”, 3/4”, and 1”
	Set
46755	5-Piece 16” SDS Masonry Bit	Concrete/Masonry	5/16”, 3/8”, 1/2”, 3/4”, 1”
	Set

SKU 68169 For technical questions, please call 1-800-444-3353. Page 11