hss step drill bits to enlarge a hole as the bit drills - DEEP

Step drill bits are designed to enlarge a hole as the bit drills through the sheet metal. - more info check here: http://www.buyindustrialtools.com/hss-step-drill-bits-to-enlarge-a-hole-as-the-bit-drills-10052328/

Quick Brief

Place of Origin: Shanghai China (Mainland) Brand Name: DEEP Model Number: DEEP Type: STEP DRILL BITS Material: High Speed Steel Use: Metal Drilling RED: RED

Product Features:

Step drill bits are designed to enlarge a hole as the bit drills through the sheet metal.

Business Terms:

Port: SHANGHAI

Minimum Order Quantity: 100 Piece/Pieces

Supply Ability: 10000 Piece/Pieces per Day

Payment Terms: T/T,Western Union

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hss step drill bits to enlarge a hole as the bit drills

Specifications and Product Details:

Step Drill Bits or Step Drills.

Step drill bits are used to drill metal up to 1/4 of an inch thick. Step drill bits are designed to enlarge a hole as the bit drills through the sheet metal. Each step on the bit is larger in diameter than the step before. Smaller step drill bits are self-starting and no pilot bit is required to start the hole. On larger step drill bits, you need to have a hole pre-drilled that is equal in diameter to the smallest step on the bit.

1)Material:HSS4241 ,4341, 9341,M2,M35 ,M42

2)Standard:ISO,ANSI

3)SIZE:

Description	Steps	Step length
4-12mm	5 step	5mm
4-12mm	9 step	11mm
4-20mm	9 step	5mm
4-22mm	10 step	5mm
4-32mm	15 step	5mm
5-35mm	13 step	3.5mm
5-28.3mm	10 step	5mm
6-18mm	7 step	5mm
5-29mm	10 step	5mm
6-18mm	7step	5mm
6-20mm	8 step	5mm
6-30mm	13 step	5mm
6-33mm	12 step	5mm
14-24mm	6 step	5mm
30-40mm	11 step	5mm