HSS Spiral Step Drill Bit, Bright Finish

HSS Spiral Step Drill Bit, Bright Finish

Item No.: 142-0502-01

HSS Grade: M35, 6542, 4341, 4241
Point Angle: 118/135 Split Point
Surface Color: Bright Finish, Tin-coated, Amber Color, TiCN
Flute: Straight Flute, Spiral Flute

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Description Straight Flute Spiral Flute

HSS Spiral Step Drill Bit

Grade: M35, 6542, 4341, 4241
Point Angle: 118/135 Split Point
Surface Treatment: Bright Finish, Tin-coated, Amber Color, TiCN
Flute: Straight Flute, Spiral Flute
Features:
1. Step drill bits are perfect for drilling and enlarging multiple-holes in thin sections of sheet metals, pipes, plexiglass, plastics, wood up to a thickness of 5mm.
2. 135° Split Point Tip: increases cutting speed with self-centering and the drills do not run off center.
3. A variety of hole diameters can be drilled using only one tool.
4. The dimension of drilled hole is exact.
5. Two Flute Design: provides longer life and better chip removal.
6. The Spiral Groove: creates better, less noise, less force has to be used.
7. Only for rotary use.

Surface Treatment:

01	Bright Finish （白身）
02	Tin-coated （镀钛）
03	Amber Color （烤黄）
04	TiCN （碳氮化钛）

Shank Available:

Tri-Flat Shank

R Flute Hex Shank

Double R Flute Hex Shank

Straight Flute

Product Code	Size Range mm	Steps	Shank Dia. mm
141-0501	4-12mm x 5	5	6
141-0502	4.8-10.65mm x 5	5	6
141-0601	14-24mm x 6	6	13
141-0701	6-25mm x 7	7	10
141-0702	5-28mm x 7	7	9
141-0801	6-20mm x 8	8	9
141-0802	10-45mm x 8	8	13
141-0803	20-34mm x 8	8	13
141-0804	6-32mm x 8	8	10
141-0901	4-12mm x 9	9	6
141-0902	4-20mm x 9	9	8
141-0903	6-32mm x 9	9	13
141-0904	12-20mm x 9	9	10
141-0905	5.3-30.5mm x 9	9	9
141-0906	6-30.5mm x 9	9	10
141-0907	6.5-32.5mm x 9	9	10
141-1001	4-22mm x 10	10	10
141-1002	9-36mm x 10	10	13
141-1101	10-20mm x 11	11	10
141-1102	20-30mm x 11	11	13
141-1103	5.3-38.5mm x 11	11	13
141-1201	6-38mm x 12	12	10
141-1202	6-37mm x 12	12	10
141-1301	4-39mm x 13	13	10
141-1302	5-35mm x 13	13	13
141-1401	4-30mm x 14	14	10
141-1402	5-38mm x 14	14	13
141-1501	4-32mm x 15	15	10
141-1601	6-40mm x 16	16	13

Spiral Flute

Product Code	Size Range mm	Steps	Shank Dia. mm
142-0501	4-12mm x 5	5	6
142-0502	4.8-10.65mm x 5	5	6
142-0601	14-24mm x 6	6	13
142-0701	6-25mm x 7	7	10
142-0702	5-28mm x 7	7	9
142-0801	6-20mm x 8	8	9
142-0802	10-45mm x 8	8	13
142-0803	20-34mm x 8	8	13
142-0804	6-32mm x 8	8	10
142-0901	4-12mm x 9	9	6
142-0902	4-20mm x 9	9	8
142-0903	6-32mm x 9	9	13
142-0904	12-20mm x 9	9	10
142-0905	5.3-30.5mm x 9	9	9
142-0906	6-30.5mm x 9	9	10
142-0907	6.5-32.5mm x 9	9	10
142-1001	4-22mm x 10	10	10
142-1002	9-36mm x 10	10	13
142-1101	10-20mm x 11	11	10
142-1102	20-30mm x 11	11	13
142-1103	5.3-38.5mm x 11	11	13
142-1201	6-38mm x 12	12	10
142-1202	6-37mm x 12	12	10
142-1301	4-39mm x 13	13	10
142-1302	5-35mm x 13	13	13
142-1401	4-30mm x 14	14	10
142-1402	5-38mm x 14	14	13
142-1501	4-32mm x 15	15	10
142-1601	6-40mm x 16	16	13