Sds Plus Shank

Sds Plus Shank

What does SDS mean?

This is a common question asked by a DIY novice. To make matters worse there are three types of these drills available: SDS Plus, SDS Top and SDS Max. This article provides a basic grounding in what the SDS system is, where it originated and what part of the system you might be interested in.

Origins of the SDS System

Bosch invented the SDS drill system in 1975. Bosch advertise SDS internationally as meaning Special Direct System, though in German speaking nations it is more usually known as Spannen Durch System(meaning "clamping system").

Types of Chuck Available

There are three standards available:

• SDS Plus is the smallest of the three and is a very common fitting for professional and DIY use. The tool's shank is 10mm and inserts 40mm into the chuck. It is rated for hammers up to 4kg.
• SDS Top is the least common of the three standards. It uses a 14mm fitting that inserts 70mm into the chuck. SDS Top is rated for hammers in the 2kg to 5kg range.
• SDS Max is a very common industrial fitting. SDS Max employs an 18mm shank with three open grooves and a locking mechanism, instead of the two rolling balls employed in SDS Plus and SDS Top. The shank inserts 90mm into the chuck. Max is rated for hammers over 5kg and is a common fitting for light industrial use.

How Does SDS Work?

All SDS tools have a cylindrical shank with various grooves down the sides. On SDS Plus and SDS Top bits there are small grooves to provide rotary force and two closed channels for a ball roller to fit into. The ball roller allows the bit to move back and forwards freely whilst under hammer action. SDS Max employs three ball rollers.

SDS Plus tools are fitted by pressing the chuck backwards towards the body of the drill and inserting the bit. Removal is carried out in a similar fashion. SDS chucks are keyless.

Advantages of SDS

• Quick exchange of tools
• No chuck key required for tool exchange
• Improved hammer action compared to normal varieties
• Rotation Stop or Hammer Only action enables versatile use

Disadvantages of SDS

• Cost of tools is higher than normal fittings
• Chuck requires regular lubrication
• Chuck must be kept clean internally else damage can ensue

In Conclusion

The SDS system gives modern power tools a versatile edge over older competitors. SDS tools are generally more powerful than their conventional cousins. Although bits used in the system are more expensive they are long lasting and durable, usually being tipped with tungsten carbide (TC) or similar material to give longer life.

SDS Plus is a very common fitting for power drills used by both professionals and serious DIY enthusiasts. SDS Top is an uncommon fitting and this may or may not be an issue to your purchase choice. SDS Max is usually a light industrial fitting only as it is used with hammers rated over 5kg. Hammers as this rating are usually used for light demolition work.

Since its invention in 1975 the SDS system has revolutionised power tool use. SDS Plus fittings have become an almost defacto standard for professional and semi-professional use. To read more about power tools in general visit us at http://durablepowertools.com.

Bosch T3925SC 7-in SDS-Plus Thin Wall Core Bit Extension Shank $39.99 7-in SDS-Plus Thin Wall Core Bit Extension Shank - T3925SC

Bosch T3921SC 4-3/8-in SDS-Plus Thin Wall Core Bit $100 4-3/8-in SDS-Plus Thin Wall Core Bit - T3921SC. Shank, Centering Pin and Guide Plate Sold Separately

Bosch HA1030 SDS-max to SDS-plus Rotary Hammer Adapter $59.99 SDS-max to SDS-plus Rotary Hammer Adapters - HA1030

Bosch 1618571014 1/2-in Chuck with Integral SDS Shank & Key $59.99 1/2" Chuck w/ Integral SDS Shank & Key - 1618571014

SDS Plus Bohrfutter - Aufnahmeschaft $13.9 SDS-plus-Bohrfutter-Aufnahmeschaft mit 1/2' Anschlussgewinde für Zahnkranzbohrfutter (Lieferung ohne Bohrfutter und Bohrmaschine)

Milwaukee 48-20-7490 SDS-Plus Bit Assortment 5-Pk $29.99 SDS-Plus Bit Assortment 5-Pk - 48-20-7490

Bosch 1618580000 SDS-plus Right Angle Attachment $169.99 SDS-plus Right Angle Attachment - 1618580000

Adapter mit SDS-Max Aufnahme für SDS-Plus $89.9 Adapter - SDS Plus Zubehör, jetzt auch bei SDS-Max. Maschinen einsetzbar!&nbsp Zur Verwendung von SDS Plus Bohrern oder Meißel. Gesamtlänge 22 mm.

Bosch Power Tools 114-HC2081 .5 In.X4 In. Sds Bit $18.97 Applicable Materials: Masonry Materials. Cutting Diam: 1/2". Cutting Direction: Right. Cutting Edge Material: Carbide. Measuring System: Inch. Overall Length: 6". Shank Type: SDS-Plus. Usable Length: 4".

Bosch Power Tools 114-HC2127 .75 In.X16 In.X18 In. Sds Bit $39.27 Applicable Materials: Masonry Materials. Cutting Diameter: 3/4". Cutting Direction: Right. Cutting Edge Material: Carbide. Overall Length: 18". Shank Type: SDS-Plus. Usable Length: 16".

SDS-Plus Aufnahmeschaft für Bits $21.9 SDS-plus Aufnahmeschaft. Für Bits aus rostfreiem Edelstahl mit geschmiedetem Innensechskant und Sprengring.

Bosch HS1465 SDS-plus Hammer Steel Tile Chisel $17.99 SDS-plus Hammer Steel Tile Chisel - HS1465

Bosch HS1415 SDS-plus Hammer Steel 10-in Point $15.99 SDS-plus Hammer Steel 10" Point - HS1415

Milwaukee 48-20-7841 5/16-in x 4-in SDS-Plus Bit 150-Pk $599.99 (150) 5/16-in x 4-in SDS-Plus Bits

Bosch HS1472 SDS-plus Hammer Steel 10-in Point $19.99 SDS-plus Hammer Steel 10" Point - HS1472

Schlagbohrkronen SDS-Plus, 40mm - 82mm $69 Schlagbohrkrone, Dosensenker, hartmetall-bestückt. Verstärkter Körper aus Chrom-Nickel-Stahl. Preis komplett mit SDS plus Aufnahme. 40 mm - 80 mm.

SDS-Plus Aufnahmeschaft f�r Bits $12.99 SDS-plus Aufnahmeschaft. F�r Bits aus rostfreiem Edelstahl mit geschmiedetem Innensechskant und Sprengring.

Bosch HS1420 SDS-plus Hammer Steel 3/4-in x 10-in Chisel $15.99 SDS-plus Hammer Steel 3/4" x 10" Chisel - HS1420

Bosch RC2172 1-1/4-in x 12-in SDS-plus Rebar Cutter $59.99 1-1/4" x 12" SDS-plus Rebar Cutter - RC2172